Page 1 S-20 RAVEN TEXT MANUAL Serial Number: Registration Number: COPYRIGHT © RANS DESIGNS 4600 HWY 183 Alt HAYS, KANSAS, USA 67601 785-625-6346 www.rans.com 09/01/2013...
Page 2 RANS S-20 RAVEN TEXT MANUAL 00-01 AFTER PRINTING THE S-20 MANUAL. HOW DO I ASSEMBLE THE MANUAL? Obtain three 2" wide 3-ring binders. Place the TEXT, PARTS and FIGURES manuals in separate binders. Every page has a section number then a page number within that section. (Example: parts page 006-02) Parts pages have an exploded view and a parts listing.
Page 3 RANS S-20 RAVEN TEXT MANUAL 00-02 09/01/2013...
Page 4 RANS S-20 RAVEN TEXT MANUAL 00-03 Labels for the exterior spine of each manual may be made from self-stick labels. The format below may be used. RANS RANS RANS S-20 S-20 S-20 RAVEN RAVEN RAVEN TEXT PARTS FIGURES MANUAL MANUAL...
Page 5 RANS S-20 RAVEN TEXT MANUAL 00-04 REVISION FORM Revision # Pages Description Date Affected Original Original Issue 09/01/2013 09/01/2013...
Page 6 RANS S-20 RAVEN TEXT MANUAL 00-05 RANS Designs 4600 Highway 183 Alternate Hays, KS 67601 Technical Support (785) 625-6346 actech@rans.com Parts Department (785) 625-6346 parts@rans.com When calling Technical Support or Parts Department please have the following ready: • Aircraft Model •...
Page 7 RANS has taken care to provide clear, comprehensive, and straightforward instructions for assembly, maintenance, and operation by reference to manuals alone. In the event a question arises for which no answer seems apparent, feel free to contact RANS headquarters. Physical and mailing address:... RANS Designs...
Page 8 RANS S-20 RAVEN TEXT MANUAL 00-07 RANS S-20 RAVEN AIRCRAFT TOOL LIST The following is a list of tools that will be helpful when assembling your RANS aircraft. HAND TOOLS Pliers Safety Wire Pliers Needle Nose Pliers Linesman Pliers Side Cutters...
Page 9 RANS S-20 RAVEN TEXT MANUAL 00-08 DRILL BIT SIZES A full set of fractional drill bits ranging from 3/32" to 5/8" is strongly recommended. In addition to these, the following number bits will be required to assemble your S-20 RAVEN.
Page 10 Push to Talk Switch RADIO SHACK #275-644 Pushbutton Switch Local Avionic shops can wire your avionic harnesses for you. Switches, circuit breakers, and other electrical parts are also available from RANS. Contact RANS Parts Department for pricing. RED Illuminated Master Switch KSES0017...
Page 11 S-20 RAVEN - GENERAL INFORMATION INTRODUCTION As the builder of the S-20 RAVEN kit, you are considered the manufacturer by law. The rules state that you must build 51% of the total. In essence, we are your parts supplier. You have the final say concerning every single item that goes into your project.
Page 12 RANS S-20 RAVEN TEXT MANUAL 00-11 ENGINEERING DEPT. DRAWING NUMBERING SYSTEM RANS DESIGNATES DRAWINGS BY EIGHT VARIABLES. THIS SYSTEM CONSISTS OF LETTERS AND NUMBERS. THE FOLLOWING IS A BREAK DOWN OF THIS SYSTEM. XXXX CLASSIFICATION DWG TYPE AIRCRAFT SECTION ID NUMBER...
Page 13 RANS S-20 RAVEN TEXT MANUAL 00-12 IMPORTANT: PLEASE READ FIRST PLEASE READ: We highly recommend that you completely read the manual cover to cover before beginning assembly of your aircraft. This will help to eliminate costly mistakes and considerably speed up your build time. As you read the Assembly Manual, follow along in the Parts and Figure Drawings Manual.
Page 14 RANS S-20 RAVEN TEXT MANUAL 00-13 DEBURRING: Many parts will need to be deburred. This is an IMPORTANT step and must be performed. Assembly of parts with burrs can cause stress risers and eventual part failure. Various tools can be used. A deburring tool is nice but a 1/2"...
Page 15 Please record your serial number and have it handy whenever you call the factory for assistance. HAVE FUN: A RANS aircraft is almost as much fun to build as it is to fly and with a little care and planning, your ship could be a show-stopper...
Page 16 RANS S-20 RAVEN TEXT MANUAL 00-15 AIRCRAFT REGISTRATION INTRODUCTION: All aircraft of U.S. registry are required to have the following documentation onboard. For aircraft registered in other countries contact your National Aviation Authority. Airworthiness Certificate Registration Operating Limitations Weight and Balance Information NOTE: The bold letters above spell out AROW.
Page 17 RANS S-20 RAVEN TEXT MANUAL 00-16 If you prefer a number of your own choosing or a smaller number, you may be able to obtain the exact number you want by asking the FAA registry to assign you a specific number of your choice.
Page 18 RANS S-20 RAVEN TEXT MANUAL 00-17 REGISTERING YOUR AIRCRAFT After you have written the Aircraft Registry requesting an "N" number, you will receive a form letter giving your number assignment. You will also receive a blank Aircraft Registration Form. (Sample Enclosed.)
Page 19 RANS S-20 RAVEN TEXT MANUAL 00-18 Advisory Circular 20-27 (AC 20-27) is available from the FAA or EAA describes the procedure used so that your logbook will be a verification of having completed at least 51% of the aircraft yourself.) MY AIRCRAFT IS COMPLETED, ALL MARKING AND PLACARDS ARE IN PLACE.
Page 20 RANS S-20 RAVEN TEXT MANUAL 00-19 5. Estimated time or number of flights required. (Usually 25 hours for aircraft equipped with certified aircraft engine and prop combinations and 40 hours for those with non-aircraft engine propeller combinations.) 6. The area over which you will be testing. (Request an area encompassing a 25 mile radius for day VFR operations.
Page 21 RANS S-20 RAVEN TEXT MANUAL 00-20 (4) Instruments—for poor condition, mounting, marking, and (where practicable) improper operation. (5) Flight and engine controls—for improper installation and improper operation. (6) Batteries—for improper installation and improper charge. (7) All systems—for improper installation, poor general condition, apparent and obvious defects, and insecurity of attachment.
Page 22 RANS S-20 RAVEN TEXT MANUAL 00-21 (3) Linkages, trusses, and members—for undue or excessive wear fatigue, and distortion. (4) Retracting and locking mechanism—for improper operation. (5) Hydraulic lines—for leakage. (6) Electrical system—for chafing and improper operation of switches. (7) Wheels—for cracks, defects, and condition of bearings.
Page 23 RANS S-20 RAVEN TEXT MANUAL 00-22 (3) Bonding and shielding—for improper installation and poor condition. (4) Antenna including trailing antenna—for poor condition, insecure mounting, and improper operation. (j) Each person performing an annual or 100-hour inspection shall inspect (where applicable) each installed miscellaneous item that is not otherwise covered by this listing for improper installation and improper operation.
Page 24 RANS S-20 RAVEN TEXT MANUAL 00-23 SAMPLE CHECKLIST FOR A CONDITION INSPECTION AC90-89 APPENDIX 1 AIRCRAFT IDENTIFICATION: TYPE/SN ENGINE MODEL/SN “N” NUMBER PROPELLER MODEL/SN A/F TOTAL TIME ENGINE TOTAL TIME OWNER PROPELLER TOTAL TIME BUILDER INSPECTOR GENERAL: Unsat Unsat REGISTRATION/AIRWORTHINESS/OPERATING LIMITATIONS...
Page 25 RANS S-20 RAVEN TEXT MANUAL 00-24 WING ATTACH POINTS FLYING/LANDING WIRES/STRUTS FOR SECURITY CORROSION FLIGHT CONTROL PLACARDS INSPECT FIREWALL FOR DISTORTION AND CRACKS INSPECT RUDDER PEDALS AND BRAKES FOR OPERATION AND SECURITY INSPECT BEHIND FIREWALL FOR LOOSE WIRES AND CHAFFING LINES...
Page 26 RANS S-20 RAVEN TEXT MANUAL 00-25 ENGINE: PERFORM COMPRESSION TEST #1 CHANGE OIL AND FILTER (CHECK FOR METAL) INSPECT IGNITION HARNESS FOR CONDITION AND CONTINUITY CHECK IGNITION LEAD CIGARETTES FOR CONDITION/CRACKS CLEAN AND GAP SPARK PLUGS CHECK MAGNETO TIMING/POINTS/OIL SEAL/DISTRIBUTOR...
Page 27 RANS S-20 RAVEN TEXT MANUAL 00-26 ELECTRICAL SYSTEM CHECK COOL DOWN PERIOD/ENGINE SHUT DOWN PERFORM OIL, HYDRAULIC, AND FUEL LEAK CHECK PAPERWORK: AIRWORTHINESS DIRECTIVES RECORD FINDINGS AND SIGN OFF INSPECTION AND MAINTENANCE IN LOGBOOKS 09/01/2013...
Page 28 RANS S-20 RAVEN TEXT MANUAL 00-27 NUMBERING AND PLACARDS WHAT ARE THE SPECIAL REQUIREMENTS AS FAR AS ATTACHING NUMBERS AND PLACARDS TO HOMEBUILT AIRCRAFT? DISPLAY OF MARKS LOCATION OF MARKS ON FIXED (Reference is FAR Part 45.23) WING AIRCRAFT (Reference FAR Part 45.25)
Page 29 RANS S-20 RAVEN TEXT MANUAL 00-28 IDENTIFICATION PLATE identification plate (Reference is FAR Part containing these essential 45.11) elements must be of fireproof material and must be secured in In addition to affixing the aircraft’s such a manner that it will not likely...
Page 30 RANS S-20 RAVEN TEXT MANUAL 00-29 AIRCRAFT INSTRUMENT MARKINGS & COCKPIT PLACARDS Your reference is FAR Part 91.9 Civil Aircraft Operating Limitations and Marking Requirements GENERAL To insure that each person operating an aircraft does so within the operating limitations prescribed for it, the FAA requires that there is available in it a current Flight Manual, appropriate instrument marking and placards, or any combination thereof.
Page 31 RANS S-20 RAVEN TEXT MANUAL 00-30 AIRSPEED INSTRUMENT MARKINGS The airspeed indicator should be marked with a red radial line to establish the never- exceed speed. (Vne). The takeoff and any pre-cautionary range should be marked with a yellow arc.
Page 32 RANS S-20 RAVEN TEXT MANUAL 00-31 FLIGHT MANEUVER PLACARD For non-acrobatic category airplanes, there should be a placard in front of and in clear view of the pilot stating: “No acrobatic maneuvers, including spins, approved”. For acrobatic category airplanes, there should be a placard in clear view...
Page 33 RANS S-20 RAVEN TEXT MANUAL 00-32 OPERATING LIMITATIONS MANDATORY TEST FLIGHT PROVING PHASE All amateur-built sport aircraft as well as standard aircraft have federally imposed operating limitations. Upon satisfactory completion of the necessary final FAA Inspection of the aircraft and whatever ground tests may be required, the FAA inspector will issue your amateur-built “Experimental”...
Page 34 RANS S-20 RAVEN TEXT MANUAL 00-33 DURATION OF MANDATORY FLIGHT TEST PERIOD For standard aircraft type engines: When an FAA approved aircraft engine/propeller combination is installed, the flight test period is usually limited to 25 hours of flight time. For automotive engines, non-FAA approved engines or propellers, or FAA...
Page 35 RANS S-20 RAVEN TEXT MANUAL 00-34 OTHER LIMITATIONS DURING THE FLIGHT TEST PERIOD As a rule, the carrying of passengers or other crew members will not be permitted unless necessary to the safe operation of that aircraft. AIRCRAFT FLIGHT LOG During the flight test period, the pilot should record the aircraft flight history in an appropriate log book.
Page 36 RANS S-20 RAVEN TEXT MANUAL 00-35 REPAIRMAN’S CERTIFICATION The Repairman’s Certificate is applied for using the application form 8610-2, available from the local FAA offices. You should ask for this when you apply for your final inspection on your aircraft.
Page 37 Procedure At the time of purchase the Purchaser will choose which service center he wants to use for warranty service. RANS will register with that service center. Warranty after the warranty period In case where a new engine is not put into service for some period of time after the end user purchase date, and a service or warranty issue arises, any claim for warranty consideration will be reviewed on a case by case basis.
Page 38 RANS S-20 RAVEN TEXT MANUAL 00-37 S-20 ASSEMBLY FLOW CHART – GENERAL For a general overview refer to the following chart. For more detailed information refer to ASSEMBLY FLOW CHARTS – DETAILED. Note: The headings in the general chart refer to headings in the detailed flow charts.
Page 39 RANS S-20 RAVEN TEXT MANUAL 00-38 S-20 ASSEMBLY FLOW CHART – DETAILED Note: The headings in the detailed flow charts on the following pages refer to text manual headings. S-20 FUSELAGE – PRE-COVERING ASSEMBLY Refer to Section 1 and complete the following items: •...
Page 40 RANS S-20 RAVEN TEXT MANUAL 00-39 • COVERING (Refer to Section 8) • PAINTING (Manual does not provide guidance for painting) 09/01/2013...
Page 41 RANS S-20 RAVEN TEXT MANUAL 00-40 S-20 FUSELAGE – FINAL ASSEMBLY Refer to Section 1 and complete the following items: • MAIN GEAR ASSEMBLY AND INSTALLATION FINAL INSTALLATION • TAIL WHEEL / NOSE GEAR ASSEMBLY AND INSTALLATION Refer to Section 2 and complete the following items: •...
Page 42 RANS S-20 RAVEN TEXT MANUAL 00-41 • FUEL SYSTEM - FUSELAGE o INSTALL HEADER TANK o ROUTE WITHDRAWAL LINE o ROUTE RETURN LINE Refer to Section 3 and complete the following items: • ENGINE MOUNT AND ENGINE INSTALLATION • ENGINE ACCESSORY INSTALLATION •...
Page 43 RANS S-20 RAVEN TEXT MANUAL 00-42 Refer to Section 6 and complete the following items: • BOOT COWL AND INSTRUMENT PANEL INSTALLATION FINAL INSTALLATION Refer to Section 7 and complete the following items: • WINDSHIELD ASSEMBLY AND INSTALLATION FIT UP INSTALLATION •...
Page 44 RANS S-20 RAVEN TEXT MANUAL 00-43 S-20 TAIL SURFACES – PRE-COVERING ASSEMBLY Refer to Section 1 and complete the following items: • HORIZONTAL STABILIZER AND ELEVATOR ASSEMBLY AND INSTALLATION FIT UP AND PRE-COVERING ASSEMBLY • PREP AND PRIME HORIZONTAL STAB. AND ELEVATOR FRAMES...
Page 45 RANS S-20 RAVEN TEXT MANUAL 00-44 S-20 TAIL SURFACES – FINAL ASSEMBLY& INSTALLATION Refer to Section 1 and complete the following items: • HORIZONTAL STABILIZER AND ELEVATOR ASSEMBLY AND INSTALLATION INSTALLATION OF HORIZONTAL STABILIZERS FINAL ASSEMBLY OF ELEVATOR • TRIM TAB ASSEMBLY AND INSTALLATION...
Page 46 RANS S-20 RAVEN TEXT MANUAL 00-45 S-20 WINGS – PRE-COVERING ASSEMBLY Refer to Section 5 and complete the following items: • WING - MAIN STRUCTURE ASSEMBLY WING SPAR ASSEMBLY WING FRAME ASSEMBLY • FUEL TANK ASSEMBLY AND INSTALLATION ASSEMBLY INSTALLATION FUEL CAP ASSEMBLY •...
Page 47 RANS S-20 RAVEN TEXT MANUAL 00-46 S-20 WINGS – FINAL ASSEMBLY & INSTALLATION Refer to Section 5 and complete the following items: • AILERON AND FLAP ASSEMBLY AND INSTALLATION ASSEMBLY Refer to Section 5 and complete the following items: •...
Page 48 RANS S-20 RAVEN TEXT MANUAL 01-01 FUSELAGE FORMER INSTALLATION IMPORTANT: The fuselage frame should be primed and painted before formers or anything else is installed. NOTE: All fuselage formers must be cut to length from raw stock provided. Mark and check fit carefully before cutting. In addition, pay attention to the wall thickness of the raw stock called out in the parts manual.
Page 49 RANS S-20 RAVEN TEXT MANUAL 01-02 FUSELAGE SIDE FORMERS Each fuselage side uses 2 formers to support the fabric. Refer to FIGURE 01-08 for the proper location of each side former. Determine the length of each former, mark and check fit before cutting from provided raw stock.
Page 50 RANS S-20 RAVEN TEXT MANUAL 01-03 RIB - VERTICAL STABILIZER The vertical stabilizer receives 1 rib formed from aluminum sheet for fabric support. The forming process leaves the rib slightly bowed. To straighten the rib, use fluting pliers and crimp the rib flanges slightly between the holes at the notch locations.
Page 51 RANS S-20 RAVEN TEXT MANUAL 01-04 ELT & COMMUNICATIONS ANTENNA MOUNT INSTALLATION Mount plates for ELT and communication antennas are supplied in kit. Antennas or the ELT are NOT included. It is recommended to install the mount plates and to fit the ELT mount before the fuselage is covered.
Page 52 RANS S-20 RAVEN TEXT MANUAL 01-05 BAGGAGE WINDOW INSTALLATION INSTALL BAGGAGE WINDOW TRIM PANEL Clamp Baggage Window Trim Panel to outside of fuselage frame, aft of Station 3. Transfer drill #30 through fuselage tabs. NOTE: Be sure Trim Panel is centered around tabs. Pre-drilled holes in Trim Panel will be used to attach Window and Capture Ring.
Page 53 RANS S-20 RAVEN TEXT MANUAL 01A-01 MAIN GEAR ASSEMBLY AND INSTALLATION NOTE: Trike and Taildragger Main Gear have different parts for assemblies. Please be sure to refer to the correct parts page when installing. Fuselage should be covered and painted before final installation.
Page 54 RANS S-20 RAVEN TEXT MANUAL 01A-02 It is recommended to paint the Gear Legs and Clamp Plates. !!! CAUTION !!! Do NOT Powder Coat or Heat-Treat Gear Legs. Doing so may remove required temper and strength. Final install Gear Legs after covering and painting Fuselage.
Page 55 RANS S-20 RAVEN TEXT MANUAL 01A-03 IMPORTANT INFORMATION: MATCO Mfg wheels using tapered roller bearings are equipped with Timken bearings utilizing integrated grease seals on the bearing cone to ensure the longest possible life. The torqueing procedure for bearings with these type seals is different than for tapered roller bearings without them.
Page 56 RANS S-20 RAVEN TEXT MANUAL 01B-01 TAIL WHEEL, NOSE GEAR AND TAIL TIE-DOWN ASSEMBLY AND INSTALLATION NOTE: Tail Wheel, Nose Wheel and Tail Tie-Down installation is covered in this section. Fuselage should be covered and painted before final installation. Refer to SECTION 10 - OPTIONS for 10" Tail Wheel.
Page 57 RANS S-20 RAVEN TEXT MANUAL 01B-02 NOSE GEAR INSTALLATION NOTE: Turn fuselage upside down to ease nose gear assembly. Select all the parts for the nose gear except for the steering rods and linkages. These will be assembled during the rudder pedal installation.
Page 58 RANS S-20 RAVEN TEXT MANUAL 01B-03 TAIL TIE-DOWN INSTALLATION NOTE: Tail Tie-Down is only use on Trike Installations. Select all the parts for the nose gear except for the steering rods and linkages. These will be assembled during the rudder pedal installation.
Page 59 RANS S-20 RAVEN TEXT MANUAL 01C-01 HORIZONTAL STABILIZER AND ELEVATOR ASSEMBLY AND INSTALLATION ELEVATOR FIT-UP (BEFORE PRIMING OF HORIZONTAL STABILIZER AND ELEVATOR FRAMES) The elevator hinges must be secured in position. Temporarily bolt the elevators to the horizontal stabilizers. NOTE: There is a left and right for stabilizers and elevators.
Page 60 RANS S-20 RAVEN TEXT MANUAL 01C-02 INSTALLATION OF HORIZONTAL STABILIZERS (AFTER COVERING AND PAINT OF HORIZONTAL STABILIZER) Use a hot iron to burn holes through the fabric at the attach points for the tail bracing, the elevator hinges, the drain holes and the seaplane grommet at the right horizontal stabilizer.
Page 61 RANS S-20 RAVEN TEXT MANUAL 01C-03 FINAL ASSEMBLY OF ELEVATOR (AFTER COVERING AND PAINT OF ELEVATOR) Use a hot iron and burn holes through the drain grommets, the elevator horn attach holes, the holes for the mass balance weight attach at the elevator tips and the 3 servo attach holes on top of the right elevator (through welded tangs).
Page 62 RANS S-20 RAVEN TEXT MANUAL 01C-04 Both elevators are now ready for static mass balancing. For instructions refer to RIGGING. FINAL INSTALLATION OF ELEVATOR (AFTER COVERING, PAINT, ASSEMBLY AND MASS BALANCE OF ELEVATOR) Bolt both elevators at their hinge points to the corresponding horizontal stabilizer.
Page 63 RANS S-20 RAVEN TEXT MANUAL 01D-01 TRIM TAB ASSEMBLY AND INSTALLATION ASSEMBLY (BEFORE PAINT OF TAB) Cleco each trim tab half together along the leading edge. HINT: Place the halves on a flat surface and clamp or weigh them down. This will assure that the tab is straight.
Page 64 RANS S-20 RAVEN TEXT MANUAL 01D-02 INSTALLATION Attach the trim tab to the right hand elevator as per parts drawing. Safety wire the attach bolts to the End Ribs. HINT: There are small openings in each End Rib at the bend, which works well.
Page 65 RANS S-20 RAVEN TEXT MANUAL 01E-01 FLOORBOARD INSTALLATION (BEFORE FIT-UP OF BOOT COWL) Lay floorboard in place with the bent flanges facing down. Center side to side and front to back. Check the fit, some trimming may be required where welds or tabs protrude. Once satisfied with the fit, tape or clamp in place.
Page 66 RANS S-20 RAVEN TEXT MANUAL 01F-01 RUDDER PEDAL INSTALLATION Floor Board and Boot Cowl should be fit-up before final install of Rudder Pedals. Rivet together the Upper Toe Pedal Assemblies as shown in the parts manual. Be sure to debur all holes before final assembly of the upper toe pedal.
Page 67 RANS S-20 RAVEN TEXT MANUAL 01G-01 RUDDER SYSTEM ASSEMBLY AND INSTALLATION RUDDER FIT-UP (BEFORE PRIMING OF FUSELAGE AND RUDDER FRAME) Rudder hinges must be secured in position. Temporarily bolt the rudder to the fuselage. Adjust the rudder vertically to create a gap between the tip of the vertical stabilizer and the overhang of the rudder of approximately 3/16”.
Page 68 RANS S-20 RAVEN TEXT MANUAL 01G-02 FINAL INSTALLATION (AFTER COVERING AND PAINT OF FUSELAGE) Attach the rudder with the hardware shown in the parts manual. Lubricate hinges and swivel rudder about 30 degree left and right. The rudder should swivel freely without any excessive friction.
Page 69 RANS S-20 RAVEN TEXT MANUAL 01G-03 (AFTER INTERIOR INSTALLATION) Pass Rudder Cables through Rudder Cable Closeout. Refer to INTERIOR INSTALLATION in Section 009A of the Parts Manual. NOTE: Rudder Cables may be temporarily attached to Rudder Pedals, for rigging, until Closeout is installed.
Page 70 RANS S-20 RAVEN TEXT MANUAL 01H-01 HYDRAULIC BRAKE INSTALLATION (AFTER COVERING AND PAINTING OF FUSELAGE AND INSTALLATION OF FIREWALL) Rudder pedals and floorboards must be installed and the airplane should be on the main gear with wheel assemblies mounted. Modify Parking Brake Backing Plate per FIGURE 01H-02. Drill arm of Parking Brake to 1/4".
Page 71 RANS S-20 RAVEN TEXT MANUAL 01H-02 Fill the system from the bottom through the bleed valves in the caliper cylinders. HINT: A small hand held oil pump can with a short piece of small diameter hose attached works well. With the oil pump full of hydraulic oil, slide the hose on the oil pump over the lower left bleed valve.
Page 72 RANS S-20 RAVEN TEXT MANUAL 01I-01 AFT BAGGAGE COMPARTMENT ASSEMBLY (BEFORE COVERING AND PAINTING OF FUSELAGE) Tape all sheet metal parts of the Aft Baggage compartment together. Refer to parts page drawing for proper orientation in relationship to the flanges. HINT: When assembled, flanges will NOT be visible from the inside of the Aft Baggage Compartment.
Page 73 RANS S-20 RAVEN TEXT MANUAL 01I-02 FORWARD BAGGAGE COMPARTMENT ASSEMBLY (BEFORE COVERING AND PAINTING OF FUSELAGE) With AFT Baggage Compartment clecoed in place, tape Forward Sides into fuselage. Upper side will align to center of tube. Forward edge will set on large tabs at Station 2B.
Page 74 RANS S-20 RAVEN TEXT MANUAL 01I-03 CARGO NET ASSEMBLY (BEFORE COVERING AND PAINTING OF FUSELAGE) Position Top Back - Baggage Compartment to align upper flange to centerline of Top Former tube and to centerline of fuselage outer tail cone tube. Transfer drill through tabs #30 and cleco. NOTE: Tabs are located on lower side of upper Station 4 fuselage crossing tube.
Page 75 RANS S-20 RAVEN TEXT MANUAL 01J-01 SLIDING SEAT ASSEMBLY FUSELAGE PREPARATION (BEFORE COVERING AND PAINTING OF FUSELAGE) Locate, mark and drill all 4 fuselage seat tubes per FIGURE 01J-01. Cleco as you drill. HINT: Best alignment between matching Sliding Seat Rails may be obtained by placing assembled seat in position with the 1/4"...
Page 76 RANS S-20 RAVEN TEXT MANUAL 01J-02 Bolt Seat Bottom Frames to Seat Side Plates through the Multi-hole Tangs. Insert washers and bearings between Multi-Hole tangs. Tighten nuts retaining Side Plates to Seat Back Frame. Slip assembled Seat Frame into Fuselage. Insert a 1/4" Quick Pin through matching holes in each set of Side Plates.
Page 77 RANS S-20 RAVEN TEXT MANUAL 01J-03 Press Slider Block onto covered Seat Bottom Frame with hole aligned with burned hole. NOTE: The long leg of Slider block should be to inside of Seat Bottom Frame. Rivet in place. Re-install seats during final assembly.
Page 78 RANS S-20 RAVEN TEXT MANUAL 01J-04 OPTIONAL HEADREST ASSEMBLY Become familiar with the Optional Headrest Assembly Parts Drawings and collect the parts shown in the drawings. Mark and drill the Headrest Frame as shown in FIGURE 01J-24. HINT: Use an Aluminum Tube or straight edge, as before, to find the forward and aft centerlines of the Headrest Frame for the lower holes.
Page 79 RANS S-20 RAVEN TEXT MANUAL 01J-05 OPERATION OF SLIDING SEAT The sliding feature of the seat allows quick adjustment of the seat position while sitting in the seat. To change seat position grasp the Seat Back and lean forward, pulling the Seat Back forward with you. NOTE: Lean forward far enough to allow the 1/4"...
Page 80 RANS S-20 RAVEN TEXT MANUAL 01K-01 FUEL SYSTEM - FUSELAGE FUSELAGE PREPARATION (BEFORE COVERING AND PAINTING OF FUSELAGE) Locate Header Tank Mount per FIGURE 01K-01. Transfer drill #30 through each tab. Glue Rubber Edging to top edge of Mount flanges. Rivet Header Tank Mount to top of tabs.
Page 81 RANS S-20 RAVEN TEXT MANUAL 01K-02 Perform a leak test by capping off all fittings and pressurizing the tank to 1 PSI and let set for a period of time. CAUTION: Damage may result from over-pressurization. While the tank is pressurized, check for any leaks by spraying a soap/water mixture onto the tank and around the fittings.
Page 82 RANS S-20 RAVEN TEXT MANUAL 01K-03 (AFTER WINGS MOUNTED TO FUSELAGE) After wings are mounted to fuselage in final assembly, route fuel line from each wing, down behind Station 3 and to Header tank. Secure as desired using plastic ties. Add a clear plastic tape or split fuel hose as anti-chafe wherever the lines contact the fuselage frame or other parts.
Page 83 RANS S-20 RAVEN TEXT MANUAL 01K-04 Connect electrical wires of fuel pump to 12-volt switch on Instrument Panel. Do not forget to include a proper sized breaker. OPTIONAL 6.9 GALLON HEADER TANK FUSELAGE PREPARATION (BEFORE COVERING AND PAINTING OF FUSELAGE) Locate Header Tank Mount per FIGURE 01K-22.
Page 84 RANS S-20 RAVEN TEXT MANUAL 01K-05 Apply thread sealant to fittings and install into the tank fittings. Again, allow no rotation of the tank fitting. Refer to the parts manual for the correct parts. Perform a leak test by capping off all fittings and pressurizing the tank to 1 PSI and let set for a period of time.
Page 85 RANS S-20 RAVEN TEXT MANUAL 01K-06 OPTIONAL LOW FUEL WARNING KIT Become familiar with the Optional Low Fuel Warning Kit on the Header Tank Parts Drawings and collect the parts shown in the drawings. A 5/8" hole should have been located in the side of the Header Tank. If not, refer back to FIGURE 01K-02 and 01K-23.
Page 86 RANS S-20 RAVEN TEXT MANUAL 02-01 CONTROL STICK ASSEMBLY & INSTALLATION ASSEMBLY Refer to the parts catalog and select the required components for assembly. Drill out ONE of the control stick's lower hole to 1/4" diameter. Refer to FIGURE 02-02. The other control stick has a 3/16" bolt inserted and does not need to be drilled.
Page 87 RANS S-20 RAVEN TEXT MANUAL 02-02 INSTALLATION (AFTER FINAL INSTALLATION OF FLOORBOARD) Bolt the control stick torque tube assembly through the floorboard and into the nut-plated tabs underneath. Apply Light Machine Oil to rotational collars. Check for free movement of assembly. Loosen bolts slightly if movement is restrictive.
Page 88 RANS S-20 RAVEN TEXT MANUAL 02A-01 CONTROL STICK PUSH-PULL TUBE ASSEMBLY & INSTALLATION (AFTER COVERING AND PAINTING OF FUSELAGE) Refer to the parts catalog and select the required components for assembly. Fabricate elevator stop sleeves from raw stock per FIGURE 02A-02. Slip one sleeve onto 35"...
Page 89 RANS S-20 RAVEN TEXT MANUAL 02B-01 ELEVATOR PUSH-PULL TUBE ASSEMBLY & INSTALLATION ASSEMBLY Refer to the parts catalog and select the required components for assembly. Drill the #30 thru-hole in the forward (doubler end) of the elevator push- pull tube to 1/4".
Page 90 RANS S-20 RAVEN TEXT MANUAL 02C-01 AILERON CABLE SYSTEM INSTALLATION - FUSELAGE INSTALLATION (AFTER COVERING AND PAINTING OF FUSELAGE) Assemble Pulley Assemblies with Hummer Tangs and small U-brackets. Refer to parts page and select the required components for assembly. Leave the bolt through the U-bracket slightly loose to allow a small amount of rotation.
Page 91 RANS S-20 RAVEN TEXT MANUAL 02D-01 FLAP LEVER ASSEMBLY AND INSTALLATION ASSEMBLY Refer to the parts catalog and select the required components for assembly. Fabricate the following bushings to the appropriate lengths from Raw Stock: Qty. Length Tube Size 1.0"...
Page 92 RANS S-20 RAVEN TEXT MANUAL 02D-02 Temporarily bolt rod ends to each side of the welded tab on the Flap Handle. The exact adjustment of the rod end on the Teleflex will be determined when adjusting the flaps. INSTALLATION (AFTER COVERING AND PAINTING) Install the flap lever assembly into the cockpit by slipping the forward part of the assembly over the "T"...
Page 93 RANS S-20 RAVEN TEXT MANUAL 03-01 ROTAX 912ULS - ENGINE MOUNT INSTALLATION (AFTER FIT-UP OF FIREWALL & BOOT COWL) ASSEMBLY Refer to the parts catalog and select the required components for assembly. Position Firewall on forward side of Station 1.
Page 94 RANS S-20 RAVEN TEXT MANUAL 03-02 Lower the engine onto the mount between the 912 Engine Attachments. Bolt on the 912 Engine Attachments using 10mm bolts, Loc Washers and Loctite. Torque the bolts to 15 to 20 ft. lbs. IMPORTANT: Completely remove Rotax installed coolant hose attached to AFT cylinder head coolant fitting.
Page 95 RANS S-20 RAVEN TEXT MANUAL 03A-01 ROTAX 912ULS - ENGINE ACCESSORY INSTALLATION (BEFORE FINAL INSTALL OF ENGINE MOUNT) ASSEMBLY Refer to the parts catalog and select the required components for assembly. With the firewall clecoed to the fuselage, layout and mark the accessory hole pattern onto the firewall as shown in FIGURE 03A-02.
Page 96 RANS S-20 RAVEN TEXT MANUAL 03A-02 Rivet Mount Bracket for Coolant Overflow Bottle to firewall. Refer to COOLING SYSTEM INSTALLATION. (AFTER FINAL INSTALL OF ENGINE MOUNT) Route 3/8" Black Overflow Hose from Oil Tank to Oil Tank Vent Tube. Secure both ends with Safety Wire. NOTE: Clamps may be bent slightly as needed to allow Overflow Hose to slip on Vent Tube.
Page 97 RANS S-20 RAVEN TEXT MANUAL 03B-01 ROTAX 912ULS - FUEL SYSTEM - FIREWALL FORWARD (AFTER INSTALLATION OF ENGINE) Refer to the parts pages and select the required components for assembly. INSTALLATION WITHOUT OPTIONAL GASCOLATOR NOTE: Contact ROTAX for recommended Fuel Filter.
Page 98 RANS S-20 RAVEN TEXT MANUAL 03B-02 RETURN LINE INSTALLATION Route line from Restricted Banjo Fitting, atop the Clamp Block attached to Compensating Tube of the engine, to firewall fitting. Cut to length and attach 90-degree fitting. Install Hose Clamps. Tighten all connections.
Page 99 RANS S-20 RAVEN TEXT MANUAL 03C-01 ROTAX 912ULS - COOLING SYSTEM INSTALLATION (AFTER INSTALLATION OF ENGINE MOUNT) ASSEMBLY Refer to the parts catalog and select the required components for assembly. The items below should have been done before installing the engine to the Engine Mount.
Page 100 RANS S-20 RAVEN TEXT MANUAL 03C-02 Route 1" Radiator Hose between left side Radiator Inlet and Expansion Bottle on top of engine. Insert Hose Spring into Radiator Hose until located at bend area to help prevent possible hose collapse. Fabricate Anti-chafe for the Radiator Hose by splitting a leftover piece and securing around the Hose with Plastic Ties.
Page 101 RANS S-20 RAVEN TEXT MANUAL 03C-03 Assemble the Fan to the Heater Core. The fan will have arrows showing the direction of airflow and the rotation. Make sure the airflow arrow is pointing toward the Heater Core. Locate #11 holes in the Fan Mounting Plate to match Fan mounting holes.
Page 102 RANS S-20 RAVEN TEXT MANUAL 03C-04 With the heater mounted, slip the heater hoses onto the nipples of the core and tighten all the hose clamps. Check all hose and fittings for security and chafing. Connect wires to fan and route them to the switch and power source.
Page 103 RANS S-20 RAVEN TEXT MANUAL 03D-01 ROTAX 912ULS - LUBRICATION SYSTEM INSTALLATION (FINAL INSTALL OF ENGINE) ASSEMBLY • Oil Tank should be installed to center of firewall. • Oil Breather Tube is installed on Firewall • The engine needs to be installed to the airframe.
Page 104 RANS S-20 RAVEN TEXT MANUAL 03D-02 NOTE: Use the upper cooler mount as a template. Mark and cut. The piece for the top of the oil cooler needs two holes to allow for the fittings. Locate Oil Cooler Mount Bracket onto Upper Oil Cooler Mount per FIGURE 03D-07.
Page 105 RANS S-20 RAVEN TEXT MANUAL 03D-03 If after several seconds, there is no sign of oil pressure, stop cranking the engine. Remove the Tank to Oil Cooler line at the tank. Using a funnel, prime the oil line. Check to be sure Oil Cooler to Pump line is full. Re- attach the line to the tank.
Page 106 RANS S-20 RAVEN TEXT MANUAL 03E-01 ROTAX 912ULS - MUFFLER ASSEMBLY (FINAL INSTALL OF ENGINE) ASSEMBLY  The engine needs to be installed to the airframe. NOTE: If installing the optional Muffler Style Heater, you may wish to install the Heater Wrap prior to installing the Muffler.
Page 107 RANS S-20 RAVEN TEXT MANUAL 03E-02 Bolt the FWD Muffler Manifold #1 to the forward cylinder exhaust ports of the engine. Bolt the AFT Exhaust Manifolds to the aft cylinder exhaust ports. Do not fully tighten the nuts, at this time, to allow for adjustment of the manifolds.
Page 108 03F-01 ROTAX 912ULS - OPTIONAL MUFFLER HEATER INSTALLATION • The RANS Muffler Style Heater works well for most cases. If additional heat is required from the Heater, wrap a long spring around the Muffler before installing the Heater Wraps. Stretching the spring to provide air gaps between coils will also aid in efficiency.
Page 109 RANS S-20 RAVEN TEXT MANUAL 03F-02 Push control knob in, inserting control wire through Adjustable Ferrule and Reverse Cable Stop. Safety wire Control Cable housing to Adjustable Ferrule. Install small Set Screws with Loctite into Reverse Cable Stop. Make sure control knob and slide of Air Diverter are all the way forward.
Page 110 RANS S-20 RAVEN TEXT MANUAL 03G-01 ROTAX 912ULS - THROTTLE CONTROL ASSEMBLY (FINAL INSTALL OF ENGINE) ASSEMBLY • The engine needs to be installed to the airframe. • Instrument Sub-panel must be installed NOTE: Adjustable Ferrule in Throttle Support Arm on Carburetor must be remove and replaced with the Slip Fit Conduit Terminals supplied with the Throttle Cable Assembly.
Page 111 RANS S-20 RAVEN TEXT MANUAL 03H-01 ROTAX 912ULS - CHOKE CONTROL ASSEMBLY (FINAL INSTALL OF ENGINE) ASSEMBLY • The engine needs to be installed to the airframe. • Instrument Sub-panel must be installed Refer to the parts catalog and select the required components for assembly.
Page 112 RANS S-20 RAVEN TEXT MANUAL 03I-01 ROTAX 912ULS - BATTERY BOX ASSEMBLY & INSTALLATION (FINAL INSTALL OF ENGINE) ASSEMBLY Refer to the parts catalog and select the required components for assembly. Firewall should have been drilled to match Battery Box Mount Plate. Refer back to FIGURE 03A-02.
Page 113 (FINAL INSTALL OF ENGINE) • Due to the wide selection of switches, circuit breakers, connectors, gauges, flight systems, etc, which may be used by S-20 RAVEN builders, RANS does not supply these items with the kit. • Electrical wiring can be aided with the use of Buss Bars for Master, Ground and Avionic power.
Page 114 RANS S-20 RAVEN TEXT MANUAL 03K-01 ROTAX 912ULS - 12" SPINNER ASSEMBLY (FINAL INSTALL OF ENGINE) • Spinner Assembly requires Propeller and Prop Extension Refer to the parts catalog and select the required components for assembly. The AFT edge of the Spinner Dome and Backing Plate supplied have been trimmed at the factory and should not require any additional trimming.
Page 115 RANS S-20 RAVEN TEXT MANUAL 03K-02 Place Dome over Backing Plate/Prop Assembly with the Backing Plate sitting on a flat surface HINT: Use 3 or 4 thin boards under the Backing Plate for support. Place the Spinner Dome in position. Press the Dome tight to the surface to ensure that the Dome and Backing Plate are flush.
Page 116 The Engine, Prop Extension, Spinner Backing Plate and Boot Cowl must be installed before installing the Cowling. If Firewall Forward was purchased less prop, contact RANS Parts Department for the proper 1” Prop Extension. Refer to Propeller Installation for part number.
Page 117 RANS S-20 RAVEN TEXT MANUAL 03L-02 Slip the upper Cowl into place. The forward edge should touch the 3/8” spacers. The forward end of the upper Cowl should be positioned to allow an undisturbed flow of air off the Spinner Dome and should be centered side to side.
Page 118 RANS S-20 RAVEN TEXT MANUAL 03L-03 Cut two Aluminum Strips from 3/4" x .020" raw stock. Drill #30 holes on centerline of each piece. Refer back to FIGURE 03L-20. Using Aluminum Strip as a drill pattern, locate #30 holes in cowl 13/16" fwd of opening.
Page 119 RANS S-20 RAVEN TEXT MANUAL 03M-01 ROTAX 912ULS - PROPELLER INSTALLATION (FINAL INSTALL OF ENGINE) • The Engine, Prop Extension, and Spinner Backing Plate must be installed before installing the Propeller. Refer to the parts pages and select the required components for assembly.
Page 120 RANS S-20 RAVEN TEXT MANUAL 03M-02 Refer to 12" Secure Spinner Dome to the Spinner Backing Plate. SPINNER ASSEMBLY. Before first test flight, lock brakes, chock wheels and tie the tail to prevent unintentional aircraft run-away when checking Static RPM. Static (full throttle) RPM should be between 5100 - 5350 RPM.
Page 121 RANS S-20 RAVEN TEXT MANUAL 04-01 INSTRUMENTS AND ELECTRICAL Due to the different instruments and flight systems that S-20 RAVEN builders are choosing, RANS does not supply gauges with the kit. Refer ENGINE INSTALLATION Engine Manufacturer's documentation for specific information on engine electrical systems.
Page 122 RANS S-20 RAVEN TEXT MANUAL 05-01 WING – MAIN STRUCTURE ASSEMBLY NOTE: LORD brand FUSOR 108B/109B Adhesive is recommended for bonding the sheet metal wraps to the FWD & AFT wing spars. Leading Edge, Root, and Tip Wraps are riveted with 1/8” Stainless Steel Flush rivets. A suitable 1/8”...
Page 123 RANS S-20 RAVEN TEXT MANUAL 05-02 Transfer drill through Spar and Root Doubler #40 in 4 places using the Leading Edge Patch as a guide and cleco. Refer to FIGURE 05-05. Remove one cleco at a time and drill out to #30 (4 places) and cleco.
Page 124 RANS S-20 RAVEN TEXT MANUAL 05-03 When attaching the Strut Attach Plates to the Spars, it will be necessary to drill out the spars to 3/8" diameter. IMPORTANT: Do NOT drill the Strut Attach Plates to 3/8”. The most accurate way to drill the 3/8 " holes is to first drill 1/4”...
Page 125 RANS S-20 RAVEN TEXT MANUAL 05-04 WING FRAME ASSEMBLY Select either a Right or Left hand set of Leading and Trailing Edge Spars. Place on padded sawhorses and bolt in root Inner Compression Tube. IMPORTANT: Be sure to install the Aileron Cable Rub Block and the Aileron Cable Retention Plate at the Trailing Edge Spar.
Page 126 Tip Bow. NOTE: The trailing edge side has an additional hole drilled (this hole is NOT used on the S-20 RAVEN). Refer to FIGURE 05-34. Insert the Tip Bow into Leading and Trailing Edge Spar and cleco Tip Bow through the FWD side of Leading Edge Spar and the AFT side of Trailing Edge Spar.
Page 127 NOTE: Each fuel tank is pressure tested from the supplier and guaranteed leak proof. RANS also performs a pressure test on each fuel tank before they are packed. After you have installed the fuel fittings, it is advisable to perform a final leak test.
Page 128 RANS S-20 RAVEN TEXT MANUAL 05A-02 Use a 1/4" Allen wrench inserted into the tank fitting to hold the fitting while tightening the retaining nut. IMPORTANT: Do not allow the fitting or 1/2” thick washer to rotate while tightening or leaks may occur. HINT: Prevent the 1/2”...
Page 129 RANS S-20 RAVEN TEXT MANUAL 05A-03 FUEL CAP ASSEMBLY Collect Fuel Cap Assembly and metal Retainer. Notice the Flush Fuel Cap must be orientated correctly to insert and lock into its Mounting Flange. Center metal Retainer on bottom side of Mounting Flange. Refer to FIGURE 05A-14.
Page 130 RANS S-20 RAVEN TEXT MANUAL 05B-01 AILERON BELLCRANK AND CABLE INSTALL - WING (AFTER WING FRAME ASSEMBLY/ BEFORE COVERING OF WINGS) Locate the parts for the Bell Crank Assembly as per parts manual. Assemble 2 Upper and 2 Lower Bell Crank Assemblies per FIGURE 05B- 02 and FIGURE 05B-02A.
Page 131 RANS S-20 RAVEN TEXT MANUAL 05C-01 WING – RIB & SHEET METAL INSTALLATION WING RIB ASSEMBLY NOTE: LORD brand FUSOR 108B/109B Adhesive is recommended for bonding the sheet metal wraps to the FWD & AFT wing spars. Leading Edge, Root, and Tip Wraps are riveted with 1/8” Stainless Steel Flush rivets. A suitable 1/8”...
Page 132 RANS S-20 RAVEN TEXT MANUAL 05C-02 INSTALLATION (AFTER ASSEMBLY OF WING FRAME) Pre-drilled #30 rib mounting holes are located in Leading & Trailing Edge Spars. De-burring of holes may be required. Modify 2 FWD Rib Attach Clips per FIGURE 05C-06. Orientate with tabs to the outboard side and rivet to pre-drilled holes at root of Leading Edge Spar.
Page 133 RANS S-20 RAVEN TEXT MANUAL 05C-03 RIB STRINGER INSTALLATION Slide Outboard Rib Stringers into wing from the outboard side and cleco to upper and lower tabs on Ribs #3 thru #11. IMPORTANT: Outboard end of Outboard Rib Stringer may be identified by hole to hole dimension of 12.75”.
Page 134 RANS S-20 RAVEN TEXT MANUAL 05C-04 UPPER AND LOWER ROOT SKINS The root skins consist of an Upper and Lower Skin. IMPORTANT: Upper Root Skin orientation is determined by an extra hole in the FWD Tip side of the skin. Refer to FIGURE 05C-22 for orientation.
Page 135 Scupper. Cover Ring will be removed for covering. Secure Fuel Cap Assembly to Fuel Tank. Be sure to use a fuel resistant sealant on the screw threads. RANS uses DOW 730 Solvent Resistant Sealant. Do NOT install Fuel Vent at this time; it will be installed after covering and painting.
Page 136 RANS S-20 RAVEN TEXT MANUAL 05C-06 LEADING EDGE TIP WRAP The Leading Edge Tip Wrap must be pre-fit before final installing the Leading Edge Wrap. The tip wraps are pre-formed at the factory to match the radius of the Leading Edge Spar and the Tip Bow.
Page 137 Edge Spar. Refer to FIGURE 05C-56 Use a long straight board (1x2x144") and several (6 minimum) “C” clamps (or similar devices, RANS uses Stanley brand cushioned quick clamps) to retain the Wrap in position until the adhesive cures. A piece of wax paper between the board and the Wraps will prevent bonding the board to the Wraps.
Page 138 RANS S-20 RAVEN TEXT MANUAL 05C-08 PITOT AND STATIC SYSTEM INSTALLATION - WING (AFTER WING FRAME ASSEMBLY) NOTE: The Pitot and Static Lines and the Pitot/Static Probe Assembly are located in the left wing only. Temporarily install the Pitot/Static Tube through the previously drilled 3/4"...
Page 139 RANS S-20 RAVEN TEXT MANUAL 05C-09 FLAP TELEFLEX CABLE INSTALLATION - WING (AFTER WING FRAME ASSEMBLY) Route the Flap Teleflex Cable as per FIGURE 05C-68 and secure with plastic ties as shown to the Compression Tube and Inner Drag Brace.
Page 140 RANS S-20 RAVEN TEXT MANUAL 05D-01 AILERON AND FLAP ASSEMBLY AND INSTALLATION ASSEMBLY (BEFORE COVERING) Aileron and Flap Frames are factory assembled. Install nut plates for the hinges to the AFT side (inside) of the Flap Frame Leading Edge Spar before covering. NOTE: Aileron Frames do NOT require nut plates for hinge attachment.
Page 141 RANS S-20 RAVEN TEXT MANUAL 05D-02 INSTALLATION (AFTER COVERING AND PAINT OF WINGS) Install Flaps and Ailerons as per parts manual. NOTE: Flap Hinges are placed on the root side of the Trailing Edge Spar Hinges. Refer to FIGURE 05D-09.
Page 142 RANS S-20 RAVEN TEXT MANUAL 05D-03 The Flaps must move freely without rubbing on the Gap Seals. A minimum clearance of 0.060” must be maintained between Gap Seal and Flap Leading Edge. Final fit the Gap Seal by filing, sanding, or planeing until proper clearance is obtained.
Page 143 LIFT STRUT ASSEMBLY INSPECTION OF STRUTS RANS airfoil lift struts are made of extruded Aluminum. Extrusions of this nature are sensitive to deformation. Cracks and splits can occur along the length of the strut if the ends are compressed beyond the material limits. Over-tightened bolts can cause cracking.
Page 144 RANS S-20 RAVEN TEXT MANUAL 05E-02 NOTE: Due to dimensional variation in extruded material, it may be necessary to shim the Strut Fittings. No gap should exist between the Fittings and the Struts. CAUTION: If a gap exists, do NOT eliminate by tightening down the Bolts.
Page 145 RANS S-20 RAVEN TEXT MANUAL 05F-01 WING TIP ASSEMBLY AND INSTALLATION WING TIP FIT UP AND ASSEMBLY (AFTER COVERING AND PAINTING OF WINGS / AFTER INSTALLATION OF AILERONS AND FLAPS) When fitting the Wing Tip, work carefully not to scratch the paint on the Wing.
Page 146 RANS S-20 RAVEN TEXT MANUAL 05G-01 ROOT SKIN INSTALLATION INSTALLATION (AFTER PAINTING OF WINGS) Apply desired finish to Root Rib Closeouts. Final install Root Rib Closeouts and Fuel Sight Gauge parts before the Wings are mounted to the aircraft. Refer to ROOT SKIN parts page and place Grommets and Serrated Strip in correct locations in FWD and AFT Root Rib Closeouts.
Page 147 RANS S-20 RAVEN TEXT MANUAL 05H-01 WING INSTALLATION Please read the entire section before you continue with Wing Installation. We recommend having all assemblies and installations related to the Wing completed before the Wings are final installed to the airplane. It is NOT necessary to trial-fit the Wings to the Fuselage at an earlier assembly stage.
Page 148 A helper is required to hold the wing secure at the wing tip, while drilling. Below is two ways of drilling the AFT hole. You may decide which one you use. RANS’ Assembly Crews have done it both ways, but Method #2 is recommended.
Page 149 (somewhere in the order of 1/4”). The bushing should fit tight in the “T”-Bone and extend long enough out of it to allow pulling it out. RANS uses a steel bushing with a welded on handle. Lubricate the bushing for ease of removal and insert through the front of the Leading Edge Spar and the “T”-Bone until...
Page 150 RANS S-20 RAVEN TEXT MANUAL 05H-04 Temporarily bolt the upper end of the AFT Jury Strut to the Teleflex Retainer Bracket. Slip the lower end of the AFT Jury Strut over the aft tab of the FWD Jury Strut. Align the hole with the tab centerline. Transfer drill #11.
Page 151 RANS S-20 RAVEN TEXT MANUAL 05H-05 Remove the gap seal and paint. During final assembly, glue the small foam tape to the flange that will rest against the fuselage frame. Attach the gap seal to the wing with the screws provided.
Page 152 RANS S-20 RAVEN TEXT MANUAL 06-01 BOOT COWL ASSEMBLY ASSEMBLY (BEFORE COVERING AND PAINTING) Refer to the parts catalog and select the required components for assembly. Apply masking tape to the bottom of the wing strut carry-thru (Station 2) and mark the bottom centerline of the tube. This will become your reference line for trimming the aft bottom edge of the boot cowl skin.
Page 153 RANS S-20 RAVEN TEXT MANUAL 06-02 Apply masking tape to the Station 2 door opening tube for a trim reference for the side panels of the boot cowl. Draw a line on the tape where the centerline line is on the side of the tube. IMPORTANT: Remove tape only after final fit of doors and windshield.
Page 154 RANS S-20 RAVEN TEXT MANUAL 06-03 Cleco the Instrument Panel Frame to the forward side of tabs on Station 2 vertical tube. See FIGURE 06-18. Slight trimming may be required depending on weld beads. Cleco the Instrument Panel to the Panel Frame.
Page 155 RANS S-20 RAVEN TEXT MANUAL 06-04 Insert Instrument Panel Visor between the Top Boot Cowl Skins and Instrument Panel Frame. Mark and trim Visor as needed to clear flanges of Top Skin. Transfer drill #30. NOTE: The visor should extend aft at least 2”...
Page 156 RANS S-20 RAVEN TEXT MANUAL 06-05 VENT SYSTEM INSTALLATION (BEFORE COVERING AND PAINTING) Refer to the parts catalog and select the required components. Position NACA scoop of Vent System centered on Side Skin cutout. Transfer Drill #30 through Side Skins. Cleco in place.
Page 157 RANS S-20 RAVEN TEXT MANUAL 06A-01 INSTRUMENT PANEL INSTALLATION ASSEMBLY (BEFORE COVERING AND PAINTING) A blank instrument panel is provided with the kit. The builder should design and cut his own instrument and switch holes in the panel or contact...
Page 158 RANS S-20 RAVEN TEXT MANUAL 06A-02 Modify Oval Glare Shield Rings per FIGURE 06A-08. Orientate cut forward. Slip over fuselage tubes and center. Transfer drill #30 to Top Skins. Do NOT rivet to Top Skins until Final Assembly. Rivet Boot Cowl to fuselage through welded tabs. Rivet Top Skins in place.
Page 159 RANS S-20 RAVEN TEXT MANUAL 06A-03 SUB-PANEL & RADIO MOUNT PLATES INSTALLATION ASSEMBLY (BEFORE COVERING AND PAINTING) Rivet Throttle Reinforcement to forward side of Sub-Panel. Refer to Parts Pages for detail. Rivet Instrument Panel Reinforcement to top side of lower flange of Sub- panel.
Page 160 RANS S-20 RAVEN TEXT MANUAL 06A-04 INSTALLATION (AFTER COVERING AND PAINTING) Install Sub-Panel along with Panel Frame and Instrument Panel. Install Throttle Cable and Choke Cables in Sub-Panel, route through firewall and connect to engine. 12/29/2016...
Page 161 We use a product called Brillianize. It is available from RANS or any large aircraft supply company. IMPORTANT: The big no-no is NEVER dust off a windshield unless you have sprayed on some sort of fluid. Dry dusting will readily cut millions of fine scratches into the glazing, dimming its clear optics.
Page 162 RANS S-20 RAVEN TEXT MANUAL 07-02 Place Windshield on top of fuselage. Remove only enough of the protective plastic to locate the outboard mounting tabs. Position per FIGURE 07-03. Be careful not to scratch the windshield. Be sure the Windshield is centered side to side before drilling. Drill #30 through the inboard two holes of each tab.
Page 163 RANS S-20 RAVEN TEXT MANUAL 07-03 (AFTER ATTACHMENT OF WINGS) With the wings attached to the fuselage, position and tape at least two straight edges from wing root to wing root as shown in FIGURE 07-11. NOTE: The straight edges used should only rest about 1” on the wing.
Page 164 RANS S-20 RAVEN TEXT MANUAL 07-04 Drill out all windshield and skylight #30 holes to #28. IMPORTANT: Drill only the Windshield and Skylight. Do NOT drill the mating strips to #28. Run a small bead of Silicone Seal along the holes in the mating strips and rivet the strips to the windshield and skylight.
Page 165 RANS S-20 RAVEN TEXT MANUAL 07-05 Transfer drill all holes through Trim Strips to #30 and cleco. Drill through Skylight at tab locations aft of Station 3. Trim aft edge to be flush with aft edge of tabs. Use the third Mating Strip to fabricate an aft capture strip to attach the Skylight to the Station 3 fuselage tabs shown in FIGURE 07-32.
Page 166 RANS S-20 RAVEN TEXT MANUAL 07-06 WING CUFF INSTALLATION PLEASE NOTE: Before the wing cuffs can be installed the wings and windshield must be on the plane. Trim cuffs to fit. See FIGURE 07-39. Before installing cuffs place a strip of masking tape on the Leading Edge Spar at least 8"...
Page 167 RANS S-20 RAVEN TEXT MANUAL 07-07 Drill the #30 holes, in the Lexan only, to #28. Clean the windshield, cuff, and wing of any debris. Stick 1/2" Black Foam Tape to outboard edge of Wing Cuff to help seal against Wing. Cleco the cuff in place. Install the IMPORTANT: Make sure to use the small brass rivets and screws.
Page 168 We use a product called Brillianize. It is available from RANS or any large aircraft supply company. IMPORTANT: The big no-no is cleaning a window while dry. NEVER dust off a window unless you have sprayed on some sort of fluid.
Page 169 RANS S-20 RAVEN TEXT MANUAL 07A-02 Transfer drill #40 through Door Trim into outboard side of Door Frame. Cleco as you go. Final size drill to #30 and cleco. Trim forward and lower end of Lower Door Trim to match FWD Door Trim.
Page 170 RANS S-20 RAVEN TEXT MANUAL 07A-03 Reposition Lexan on Door Frame. Clamp in place. Locate #30 holes in Door Frame and match drill through Lexan. Cleco as you drill. Remove Lexan and drill holes in Lexan parts only to #27 drill size and carefully debur.
Page 171 RANS S-20 RAVEN TEXT MANUAL 07A-04 DOOR LATCH ASSEMBLY Paint / Finish all parts of Door Latch Assembly as desired. Bolt the Door Knob to the Handle Plate per parts page drawing. NOTE: There is a Left and Right Handle Plate.
Page 172 RANS S-20 RAVEN TEXT MANUAL 07A-05 Drill out the lower hole in the Door Handle to 3/16" and press the flange nut in. Refer back to FIGURE 07A-33. Drill the top hole to #28, install the button head screw and tighten.
Page 173 TEXT MANUAL 08-01 COVERING GENERAL INFORMATION Read this entire section before starting to cover. The following additional supplies will be required to cover the S-20 RAVEN. • Pinking Shears • Regular Scissors • Razor Blades • Covering Irons • Covering Thermometer •...
Page 174 RANS S-20 RAVEN TEXT MANUAL 08-02 Thick & Thinned glue is referred to and is normally in the following approximate ratios. Thick = 3 parts glue : 1 part MEK Thinned = 1 part glue : 3 parts MEK Throughout this section, we will be referring to “sizing material”. Sizing material is U-500 adhesive thinned to water like consistency.
Page 175 Bolt cover glued over the 3 FWD Strut Attach Plate Bolts Position the Wing top side up on sawhorses or other suitable work surface. HINT: RANS uses two "A" frame stands with pivots so the Wing can rotate and be locked in any position. You may consider purchasing or building such a device.
Page 176 RANS S-20 RAVEN TEXT MANUAL 08A-2 With the Wing topside up and level, roll out and cut the top layer of fabric so that it extends approximately 3" on each end of the Wing. Pull as much of the fabric to the Trailing Edge of the Wing as possible leaving enough fabric on the Leading Edge to wrap around the Spar.
Page 177 RANS S-20 RAVEN TEXT MANUAL 08A-3 The fabric will need to be riveted under reinforcement Cover Straps to the center of each rib. Refer to FIGURES 08A-26 thru 08A-26C for details about riveting. NOTE: The top Cover Straps stop at the backside of the Leading Edge Skin.
Page 178 RANS S-20 RAVEN TEXT MANUAL 08A-4 Cut to length and glue the 2" and 4" surface tape in place. Refer to FIGURES 08A-33 and 08A-37 and the following text. • TOP RIBS - 2" tape - centered on each Rib starting flush with the AFT edge of the Leading Edge Wrap and ending on AFT centerline of the Trailing Edge Spar.
Page 179 RANS S-20 RAVEN TEXT MANUAL 08B-01 AILERONS AND FLAPS Use a light hammer and form AFT ends of ribs to follow contour of trailing edge spar. Clean the entire frame thoroughly with Acetone or similar. Apply Anti-Chafe tape around sharp edges of ribs (masking tape) as shown in FIGURE 08B-03.
Page 180 RANS S-20 RAVEN TEXT MANUAL 08C-01 FUSELAGE Clean the entire frame thoroughly. Apply anti-chafe tape (masking tape) around sharp edges of vertical stabilizer rib. Perform pre-covering check using the following items.  Top former installed  1/2" center side former installed ...
Page 181 RANS S-20 RAVEN TEXT MANUAL 08C-02 Position the fuselage bottom side up. Roll out and cut a piece of fabric long enough to cover the bottom of the fuselage. Slide the fabric to one side of the fuselage and trim off the excess material.
Page 182 RANS S-20 RAVEN TEXT MANUAL 08C-03 Pre-iron the fabric all the way around to remove wrinkles and to pre- tension the fabric. "Size" the fabric around the Horizontal Stabilizer bushings using thinned glue. Let dry and cut to allow the fabric to slip over the bushings.
Page 183 RANS S-20 RAVEN TEXT MANUAL 08C-04 Apply all patches and surface tapes (in this order) as per FIGURES 08C- 33 thru 08C-33B, and 08C-34. NOTE: All exit rings, reinforcement rings, drain grommets; the rudder cable exit fairing, and the vertical stabilizer rib receive a fabric patch on top.
Page 184 RANS S-20 RAVEN TEXT MANUAL 08D-01 HORIZONTAL STABILIZERS Clean the entire frame thoroughly. Add anti-chafe tape (masking tape) around sharp edges of ribs similar to Flaps, Ailerons and Vertical Stabilizer. Perform pre-covering check using the following items.  Stabilizer frame is primed.
Page 185 RANS S-20 RAVEN TEXT MANUAL 08D-02 Use a hot knife with a pointed tip or a soldering iron and melt through the cover strap and the fabric into the rib holes. Cut the melted build up on top of the Lexan straps off using a razor blade.
Page 186 RANS S-20 RAVEN TEXT MANUAL 08E-01 RUDDER Clean the entire frame thoroughly. Perform pre-covering check using the following items.  Hinge stop collars set and riveted.  Rudder frame primed. NOTE: Each side of the rudder is covered with a separate piece of fabric.
Page 187 RANS S-20 RAVEN TEXT MANUAL 08F-01 ELEVATOR Clean the entire frame thoroughly. Perform pre-covering check using the following items.  Hinge stop collars set and riveted.  Balance weight mount holes drilled and tapped  Elevator frames primed  Second control horn holes drilled ...
Page 188 RANS S-20 RAVEN TEXT MANUAL 08F-02 Iron all surface tapes and patches, concentrating on the pinked edges. Use care not to distort the tape or patches. Apply one coat of thinned adhesive to all patches and surface tapes. 09/01/2013...
Page 189 RANS S-20 RAVEN TEXT MANUAL 09-01 SEAT BELT INSTALLATION (AFTER PRIMING OF FUSELAGE FRAME/ BEFORE COVERING) Prior to covering drill the welded attach bushings to 5/16". Refer to the parts drawing for attach bushing locations. (AFTER COVERING AND PAINT OF FUSELAGE) After the fuselage has been covered and painted, bolt each Seat Belt to the respective attach bushing as shown in the parts drawing.
Page 190 RANS S-20 RAVEN TEXT MANUAL 10-01 OPTIONS - AVEO STROBE INSTALLATION (BEFORE COVERING OF WINGS) NOTE: Installation may also be done on covered wings. Mini-Molex Connectors (or similar) at the Wing Tip and Fuselage can make connecting much easier. AVEO Strobes use only 12 Volts and do not require High-Voltage wires or Power Boxes.
Page 191 RANS S-20 RAVEN TEXT MANUAL 10A-01 OPTIONS - LANDING LIGHT INSTALLATION NOTE: Landing Light used may vary. The mounting shown is one potential mounting method. Mini-Molex Connectors (or similar) at the Landing Light will make disconnecting for Cowling removal much easier.
Page 192 RANS S-20 RAVEN TEXT MANUAL 10B-01 OPTIONS - PASSENGER SEAT ELECTRIC ELEVATOR TRIM Route Trim and Push to talk wires through drilled hole in base of passenger side Control Stick. Refer to SECTION 2 - CONTROL STICK ASSEMBLY. Install Mac Control Stick Grip per manufacturer's instructions.
Page 193 RANS S-20 RAVEN TEXT MANUAL 10C-01 OPTIONS - TIE DOWN SHACKLE INSTALLATION The Tie Down Shackles are designed to accept chain or rope without marring the Lift Struts. NOTE: Shackle may be installed during initial build or anytime after. Refer to LIFT STRUT ASSEMBLY & INSTALLATION.
Page 194 10D-01 OPTIONS - COVER / PAINT STANDS Optional Cover / Paint Stands may be purchased from RANS Parts Department or fabricate your own from the plans provided in the FIGURES MANUAL. Refer to PARTS MANUAL for assembly and required hardware. Below is a list of the provided drawings.
Page 195 RANS S-20 RAVEN TEXT MANUAL 10E-01 OPTIONS - 26" ALASKAN WHEEL ASSEMBLY AND INSTALLATION NOTE: Refer to Taildragger - Main Gear Assembly for complete installation. 26" ALASKAN WHEEL INSTALLATION Disassemble rims from Wheel Assembly. Install Rubber Grommet into valve stem hole in outer wheel rim.
Page 196 RANS S-20 RAVEN TEXT MANUAL 10F-01 OPTIONS - 10" TIRE OPTION ASSEMBLY AND INSTALLATION NOTE: Refer to Taildragger - Main Gear Assembly for complete installation. 10" TIRE OPTION INSTALLATION Disassemble rims from Wheel Assembly. Install Valve Stem in outer wheel rim.
Page 197 RANS S-20 RAVEN TEXT MANUAL 10G-01 OPTIONS - 10" PNEUMATIC TAIL WHEEL ASSEMBLY AND INSTALLATION NOTE: Refer to Tail Wheel Assembly for complete installation. 10" TAIL WHEEL INSTALLATION Transfer drill Mount Block of Tail Wheel Assembly to 3/8" to match Tail Spring.
Page 198 RANS S-20 RAVEN TEXT MANUAL 11-01 RIGGING AND PREPARATION FOR FLIGHT OK, you have built an airplane. It is sitting on the hanger floor before you in all of its majestic glory. What next? At this point, you need to ignore your enthusiasm and slow down.
Page 199 RANS S-20 RAVEN TEXT MANUAL 11-02 (AFTER PAINTING AND ASSEMBLY. BEFORE FINAL MOUNTING) The Elevator must be completely assembled and painted. The Elevator Horns, Trim Servo including push rod, wires, Trim Tab, and Trim Exit Cover with screws must be installed.
Page 200 RANS S-20 RAVEN TEXT MANUAL 11A-01 WINGS WING WASHOUT RIGGING (AFTER WING INSTALLATION) NOTE: Washout is set after the Wings and Struts are installed. Washout is set by adjusting the lower rear strut fitting (rod end). A Digital Level can simplify rigging procedures.
Page 201 RANS S-20 RAVEN TEXT MANUAL 11A-02 AILERON RIGGING Neutral position and cable tension (AFTER WING INSTALLATION/ AFTER SETTING OF WASHOUT) Center forward control stick in neutral position (aileron neutral) and securely fix in this position. Adjust the turnbuckles to set the aileron bell cranks to neutral position as shown in FIGURE 11A-09.
Page 202 RANS S-20 RAVEN TEXT MANUAL 11A-03 Surface clearance Refer back to FIGURE 05F-04. • The minimum clearance between aileron and wing tip is 0.13”. • The minimum clearance between aileron and flap is 0.2”. Operational check Move the controls in the cockpit throughout the full range of deflection.
Page 203 RANS S-20 RAVEN TEXT MANUAL 11A-04 Deflections For deflection measurement move flap lever all the way up (fourth notch). • Measurement is taken on top surface of flap at approximate half span on top of flap rib. NOTE: Press lightly up on the Flap trailing edge to remove Teleflex Cable play when checking.
Page 204 RANS S-20 RAVEN TEXT MANUAL 11B-01 TAIL SURFACES TAIL ALIGNMENT AND ROD TENSION Rotating the brace rod in the tie rod ends sets the tail brace rod tension. Rods and rod ends are left and right hand threaded to allow that.
Page 205 RANS S-20 RAVEN TEXT MANUAL 11B-02 ELEVATOR Neutral position In neutral position, the elevators are level with the horizontal stabilizer. Verify using a straight edge across the surface with a 3/16" shim at the elevator trailing edge. It is possible to adjust at the connection of the elevator horns to the elevator yoke tube (rod ends).
Page 206 RANS S-20 RAVEN TEXT MANUAL 11B-03 Surface clearance Refer to FIGURE 11B-09 • The minimum clearance between elevator and horizontal stabilizer is 0.060” all the way along the hinge line. • The minimum clearance between the elevator balance horn and the horizontal stabilizer tip is 3/16”.
Page 207 RANS S-20 RAVEN TEXT MANUAL 11B-04 ELEVATOR TRIM TAB The elevator trim tab is operated by an electric servo. Deflections Measure deflection on top of trim tab at push rod attach. • 30 (Tolerance is +3.0 / -3.0) • Down: 25...
Page 208 RANS S-20 RAVEN TEXT MANUAL 11B-05 RUDDER Neutral position and cable tension Verify neutral position of rudder with rudder pedals neutral (visual). Cable tension should be a minimum of 15 lbs. measured on both cables under seats. If no cable tension meter is available, adjust by feel.
Page 209 RANS S-20 RAVEN TEXT MANUAL 11C-01 CONTROLS CABIN HEAT Check cabin heat valve is full “closed” with control knob in “OFF” position and full “open” with control knob in “ON” position. Adjust at cable retaining ferrule. Adjust the friction adjustment to provide enough friction on the cable to keep it from moving unintentionally.
Page 210 RANS S-20 RAVEN TEXT MANUAL 12-01 WEIGHT AND BALANCE INTRODUCTION This Section describes the procedures for establishing of basic empty weight and moment of the airplane. Procedures for calculating the weight and moment for various loadings are also provided. Sample forms are provided for reference. NOTE: both trike and taildragger versions are available in the FIGURES manual.
Page 211 RANS S-20 RAVEN TEXT MANUAL 12-02 AIRPLANE WEIGHING PROCEDURES 1. Preparation: • Inflate tires to recommended operating pressure • Parking brakes set • Drain all fuel • Service engine oil as required to obtain a normal indication • Move seats to the most aft position •...
Page 212 The following will enable you to determine the weight and balance of your aircraft and to operate it within the prescribed center of gravity limitations. The S-20 RAVEN is a simple aircraft and so are the weight and balance calculations.
Page 213 RANS S-20 RAVEN TEXT MANUAL 13-1 S-20 RAVEN OPERATIONS MANUAL Serial Number: Registration Number: COPYRIGHT © RANS DESIGNS 4600 HWY 183 Alt HAYS, KANSAS, USA 67601 785-625-6346 www.rans.com 09/01/2013...
Page 214: Table Of Contents
RANS S-20 RAVEN TEXT MANUAL 13-2 TABLE OF CONTENTS RANS S-20 RAVEN - THREE VIEW ......................4 13 - GENERAL INFORMATION ........................5 ENTERING AND EXITING AIRCRAFT ......................5 DOORS ................................. 6 13A - OPERATING LIMITATIONS ....................... 1 AIRSPEED LIMITATIONS ..........................1 AIRSPEED INDICATOR MARKINGS ........................
Page 215 RANS S-20 RAVEN TEXT MANUAL 13-3 13E - AIRCRAFT CARE ..........................1 INTRODUCTION ............................1 GROUND HANDLING ............................ 1 WINDSHIELD AND WINDOWS ........................1 PAINTED SURFACES ............................. 2 INTERIOR CARE ............................2 13F - REQUIRED PLACARDS AND MARKINGS .................... 1 AIRSPEED INDICATOR MARKINGS ........................
Page 216: Rans S-20 Raven - Three View
RANS S-20 RAVEN TEXT MANUAL 13-4 RANS S-20 RAVEN - THREE VIEW 09/01/2013...
Page 217: General Information
The pilot should study the entire Operations Manual to familiarize themselves with the limitations, performance, and procedures applicable for this aircraft. ENTERING AND EXITING AIRCRAFT To enter the S-20 RAVEN: • Open the door by rotating the door handle. •...
Page 218: Doors
65 mph, then close door. FLYING WITH DOORS OPEN OR REMOVED The S-20 RAVEN can be flown with the doors open, up to and including 100 mph. The S-20's doors should not be opened at airspeeds above 65 mph. The S-20 can be flown with (1) or both doors removed up to 100 mph.
Page 219: Operating Limitations
RANS S-20 RAVEN TEXT MANUAL 13A-1 13A - OPERATING LIMITATIONS This section includes operating limitations, instrument markings, and basic placards necessary for the safe operation of the aircraft, power plant, and standard equipment. The Engine Operators Manual must be onboard the aircraft.
Page 220: Airspeed Indicator Markings
RANS S-20 RAVEN TEXT MANUAL 13A-2 AIRSPEED INDICATOR MARKINGS Airspeed indicator markings and their color code meanings are shown in table below. All speeds are given for maximum takeoff weight. Speed are given in MPH and (KNOTS) Marking IAS Value or...
Page 221: Weight Limits
The angle of bank should not exceed 60 ° and the pitch attitude may not exceed 30 °. Stalls except whip stalls are approved with slow deceleration. ► Acrobatic maneuvers, including spins are not approved in the RANS S-20 RAVEN aircraft. FLIGHT LOAD FACTOR LIMITS Flaps Up: ..................... + 4.0 g, - 2.0g Flaps Down: ....................
Page 222: Fuel Limitations
RANS S-20 RAVEN TEXT MANUAL 13A-4 FUEL LIMITATIONS Approved Fuel Grades: ............Dependent on engine used Fuel Capacity with 2.75 gallon header tank: Total Capacity: ................28.75 U.S. GAL Total Capacity each Wing Tank: ............13 U.S. GAL Header Tank Capacity ..............2.75 U.S. GAL Total Usable: ................
Page 223: Weight And Balance
RANS S-20 RAVEN TEXT MANUAL 13B-1 13B - WEIGHT AND BALANCE INTRODUCTION This Section describes the basic procedures for establishing of basic empty weight and moment of the airplane. Refer to SECTION 12 for complete Weight & Balance information. Procedures for calculating the weight and moment for various loadings are also provided.
Page 224: Weight And Balance
The following will enable you to determine the weight and balance of your aircraft and to operate it within the prescribed center of gravity limitations. The S-20 RAVEN is a simple aircraft and so are the weight and balance calculations.
Page 225: Emergency Procedures
RANS S-20 RAVEN TEXT MANUAL 13C-1 13C - EMERGENCY PROCEDURES INTRODUCTION This section provides checklists and amplified procedures for coping with emergencies that may occur. Emergencies caused by aircraft or powerplant malfunctions are rare if proper pre-flight inspections and maintenance are performed.
Page 226: Operational Checklists
RANS S-20 RAVEN TEXT MANUAL 13C-2 OPERATIONAL CHECKLISTS ENGINE FAILURE Engine Failure During Takeoff Run: Fly the Airplane! Throttle - IDLE. Brakes - APPLY as needed. Ignition switch - OFF. Master switch - OFF. Engine Failure Immediately After Takeoff Fly the Airplane! Airspeed - 66 MPH (Flaps up).
Page 227 RANS S-20 RAVEN TEXT MANUAL 13C-3 Precautionary Landing With Engine Power Fly the airplane! Select Field - FLY OVER, noting terrain, obstructions and wind direction. Flaps - AS REQUIRED (for landing site). Airspeed 59 MPH (Flaps UP). 55 MPH (Flaps full DOWN) (Use flaps as required for landing site).
Page 228 Cautiously apply elevator back pressure to slowly reduce the airspeed to below maneuvering speed . SPINS Intentional spins in the S-20 RAVEN aircraft are not recommended. Should an inadvertent spin occur, the following recovery procedure should be used: Retard the throttle to IDLE.
Page 229: Amplified Procedures
RANS S-20 RAVEN TEXT MANUAL 13C-5 AMPLIFIED PROCEDURES ENGINE FAILURE If an engine failure occurs during the takeoff run, the most important thing to do is to stop the aircraft on the remaining runway. Those extra items on the checklist will provide added safety during a failure of this type.
Page 230 Cautiously apply elevator back pressure to slowly reduce the airspeed to below maneuvering speed. SPINS Intentional spins in the S-20 RAVEN aircraft are PROHIBITED. Should an inadvertent spin occur, the following recovery procedure should be used: Retard the throttle to IDLE.
Page 231 The S-20 RAVEN doors should not be opened at airspeeds above 65 mph. The S-20 RAVEN can be flown with (1) or both doors removed up to 100 mph. A loss in L & D, climb, and cruise speed is to be expected with the doors open or Doors can open in flight if the latches are not secured.
Page 232: Normal Procedures
RANS S-20 RAVEN TEXT MANUAL 13D-1 13D - NORMAL PROCEDURES The following checklists are provided for guidance only. It is suggested that the owner of the aircraft adds items they deem necessary. PRE-FLIGHT INSPECTION Visually inspect the aircraft for its general condition during the walk around.
Page 233 RANS S-20 RAVEN TEXT MANUAL 13D-2 The entire outer surface of the aircraft should be inspected for damage of any kind during the pre-flight inspection. This is especially important due the fact that the aircraft is fabric covered.  Aircraft Flight Manual & Required Aircraft Documentation –...
Page 234 RANS S-20 RAVEN TEXT MANUAL 13D-3  Main Gear - CHECK  Main wheel tire - PROPERLY INFLATED  Brakes - SECURE  Fuel Filler Cap - CLOSED  Remove Cowling  Fuel quick drain valve on bottom of cowling (left side); - DRAIN &...
Page 235 RANS S-20 RAVEN TEXT MANUAL 13D-4  TAILDRAGGER - TAILWHEEL - CHECK - Rudder cable and springs - SECURE  TRIKE - CHECK - Rudder cable - CHECK - SECURE  Rudder - CHECK and SECURE  Tail tie down - DISCONNECT...
Page 236: Before Starting The Powerplant
RANS S-20 RAVEN TEXT MANUAL 13D-5 BEFORE STARTING THE POWERPLANT  Pre-flight Inspection - COMPLETE.  Passenger Briefing - COMPLETE.  Seat, seat belts - ADJUST and LOCK.  Brakes - TEST and SET  Radio, Electrical Equipment - OFF ...
Page 237: Taxiing
RANS S-20 RAVEN TEXT MANUAL 13D-6 TAXIING  Brakes - CHECK BEFORE TAKEOFF  Cabin Doors - CLOSED OR SECURED  Parking Brake - SET  Flight Controls - FREE and Correct  Flight Instruments - SET  Elevator Trim - SET FOR TAKEOFF (center of indicator) ...
Page 238: Takeoff
RANS S-20 RAVEN TEXT MANUAL 13D-7 TAKEOFF NORMAL TAKEOFF  Flaps – UP or 1 or 2 notch  Carburetor heat – COLD  Fuel pump - ON  Throttle – SLOWLY FULL OPEN  Elevator Control - Taildragger - LIFT TAIL WHEEL ...
Page 239: Approach
RANS S-20 RAVEN TEXT MANUAL 13D-8 APPROACH  Throttle - AS DESIRED.  Engine temperatures – MONITOR  Carburetor heat – FULL HEAT AS REQUIRED BEFORE LANDING  Seat, Belts, Shoulder Harness - ADJUST.  Fuel pump – ON ...
Page 240: Balked Landing
RANS S-20 RAVEN TEXT MANUAL 13D-9 BALKED LANDING  Throttle – FULL OPEN  Carburetor heat – COLD  Airspeed – 55 MPH  Flaps – RETRACT TO HALF, Slowly  Airspeed – 60 MPH  Flaps – RETRACT, Slowly AFTER LANDING ...
Page 241: Amplified-Procedures
The S-20 RAVEN is a light aircraft! TAXING (GROUND HANDLING) The S-20 RAVEN is a light aircraft. Concentrate on taxiing until the moment the aircraft is tied down. When taxing, it is important that speed and use of brakes is held to a minimum, and that all controls are utilized to maintain directional control and balance.
Page 242 RANS S-20 RAVEN TEXT MANUAL 13D-11 USE UP AILERON USE UP AILERON ON LH WING ON RH WING AND UP ELEVATOR AND UP ELEVATOR USE DOWN AILERON USE DOWN AILERON ON LH WING ON RH WING AND DOWN ELEVATOR AND DOWN ELEVATOR The arrows identify the wind direction.
Page 243 TEXT MANUAL 13D-12 The S-20 RAVEN Taildragger is equipped with a steerable full-swivel tail wheel. To taxi very small radius turns, push the desired rudder pedal and the brake pedal in the same direction. This will disengage the steering cam and will allow the tail wheel to swivel 360 degree.
Page 244: Aircraft Care
RANS S-20 RAVEN TEXT MANUAL 13E-1 13E - AIRCRAFT CARE INTRODUCTION If your airplane is to retain that new airplane performance and dependability, certain inspection and maintenance requirements must be followed. It is recommended to follow a planned schedule of lubrication and preventive maintenance based on the climatic and flying conditions encountered.
Page 245: Painted Surfaces
CAUTION: Never use gasoline, benzene, alcohol, acetone, thinner or glass cleaner on Lexan surfaces. PAINTED SURFACES The painted exterior surfaces of your S-20 RAVEN aircraft should have a durable and long lasting finish. No polishing of buffing will be required under normal conditions.
Page 246: Required Placards And Markings
PLACARDS The following labels and placards contain important information needed for proper operation of the S-20 RAVEN and must be displayed in the location described in this section. All placards are included with the aircraft kit. Replacements are available through RANS Aircraft Parts Department.
Page 247 RANS S-20 RAVEN TEXT MANUAL 13F-2 FUEL CAPACITY 13 GAL. US  THROTTLE  MINIMUM AKI PUSH   OPEN (ANTI KNOCK INDEX [R+M]/2)  OF 91 10% ALCOHOL CONTENTS ALLOWED       FUEL TANK CAPACITY 13.0 GALLONS US EACH WING...
Page 248 RANS S-20 RAVEN TEXT MANUAL 13F-3 EXPERIMENTAL  AIRSPEED AIR SPEED INDICATOR lbs.\sq.inch °F °F x 100 OIL PRESSURE GAUGE OIL TEMPERATURE GAUGE CHT GAUGE RPM GAUGE RED LINE 12 PSI MIN GREEN ARC 190°F-230°F NORMAL RED LINE 5800 RPM MAX GREEN ARC 29-73 PSI NORMAL YELLOW ARC 230°F-266°F CAUTION...
Page 249: Supplementary Information
PILOT OPERATING ADVISORIES The S-20 RAVEN shall only be operated by pilots with proper training. Always deflect the controls as required in windy conditions. The S-20 RAVEN is equipped with brakes on the passenger rudder pedals.

Rans S-20 RAVEN Text Manual

Rans S-20 Raven - Three View

General Information

Operating Limitations

Weight and Balance

Emergency Procedures

Normal Procedures

Aircraft Care

Required Placards and Markings

Supplementary Information

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