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•89" IMAA-legal aerobatic trainer
•Selig 8036 semi-symmetrical airfoil for maneuverability & low-speed stability
•Performance excels with a wide range of engines
READ THROUGH THE PRELIMINARY INFORMATION BEFORE YOU START
BUILDING. IT CONTAINS IMPORTANT INSTRUCTIONS, WARNINGS, AND
INFORMATION CONCERNING THE BUILDING AND USE OF THIS MODEL.

Instruction Manual

WARRANTY
Dynaflite guarantees this kit to be free from defects in both material and workmanship at the date
of purchase. This warranty does not cover any component parts damaged by use or modification.
In no case shall Dynaflite's liability exceed the original cost of the purchased kit. Further, Dynaflite
reserves the right to change or modify this warranty without notice. In that Dynaflite has no control
over the final assembly or material used for final assembly, no liability shall be assumed nor
accepted for any damage resulting from the use by the user of the final user-assembled product.
By the act of using the user-assembled product, the user accepts all resulting liability. If the buyer
is not prepared to accept the liability associated with the use of this product, return this kit
immediately in new and unused condition to the place of purchase.
®
DECGP04 Printed in USA
© 2011 Hobbico
, Inc V:2.0
1

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Summary of Contents for Dynaflite super decathlon

  • Page 1: Instruction Manual

    Instruction Manual WARRANTY Dynaflite guarantees this kit to be free from defects in both material and workmanship at the date of purchase. This warranty does not cover any component parts damaged by use or modification. In no case shall Dynaflite’s liability exceed the original cost of the purchased kit. Further, Dynaflite reserves the right to change or modify this warranty without notice.
  • Page 2: Table Of Contents

    Balance your propellers ......31 Charge your batteries .........32 Your Super Decathlon is not a toy, but a sophisticated AT THE FLYING SITE ........32 working model that functions like a full-size airplane. Ground check your model ......32 Because of its performance, if you do not assemble Range check your radio ......32...
  • Page 3: Precautions

    Your local hobby shop has information at: (217) 398-8970 or you may email us at about flying clubs in your area whose membership productsupport@dynaflite.com and we'll be includes qualified instructors if needed. glad to help. If you are calling for replacement...
  • Page 4: Suggested Supplies

    reference as you cut them. By doing this now, you SUGGESTED SUPPLIES won't have to splice pieces together later. ™ We recommend Great Planes Pro CA and Epoxy • Do not throw away any leftover material until after you have completed your model. Some small ❏...
  • Page 5: Metric Conversions

    METRIC CONVERSIONS 1/64" .4 mm 1/4" 6.4 mm 6" 152.4 mm 1/32" .8 mm 3/8" 9.5 mm 12" 304.8 mm 1/16" 1.6 mm 1/2" 12.7 mm 18" 457.2 mm 3/32" 2.4 mm 5/8" 15.9 mm 21" 533.4 mm 1/8" 3.2 mm 3/4"...
  • Page 6: Build The Tail Section

    ❏ 5. Remove the fin from the building board. BUILD THE TAIL SECTION BUILD THE FIN AND RUDDER ❏ 1. Cover the FIN/RUDDER PLAN with Great Planes Plan Protector or wax paper. ❏ 6. If you will be adding flying wires, drill a 5/16" hole in the bottom of the upper rear gusset.
  • Page 7: Build The Stabilizer

    shape shown. Make sure the “V” is large enough to allow for the specified left and right movement of the rudder (see “SET THE CONTROL THROWS”, page 30). ❏ 10. Round the leading edge of the fin and the top and trailing edge of the rudder.
  • Page 8 ❏ ❏ 3. From a 3/8" x 1/2" x 30" balsa stick, cut, fit and glue the 1/2" elevator ribs and corner gusset to the leading edge. Note: It is important that the trailing edge of the ribs align accurately with the plans. ❏...
  • Page 9: Build The Wing

    W3s (including the two with the doublers) to the BUILD THE WING paper wing tube. Use your rotary tool to enlarge the holes in the ribs as necessary. When satisfied Note: The airfoil used on this plane is semi- with the fit, remove the ribs from the tubes and set symmetrical.
  • Page 10 ❏ ❏ 14. Glue the 1/8" x 3/8" x 42" basswood bottom aft spar in place, being careful to keep the ribs straight over the plans. ❏ ❏ 11. Select two of the four W3 ribs you fitted to the wing tube. Position them in the two W3 locations where the wing tube installs.
  • Page 11 ❏ ❏ 24. Using a razor plane and/or sanding bar, shape the top of the sub leading edge to the contour of the ribs. Trim the sub leading edge flush with the wing tip rib and the root rib. ❏ ❏ 19. Cut the paper wing tube in half. Insert the aluminum tube inside the paper tube.
  • Page 12 ❏ ❏ ❏ ❏ 3. Using a square to properly align the sheeting with the trailing edge of the wing as ❏ ❏ 6. If this is your second or fourth time through shown on the plans, position the sheeting and glue this section, complete the following steps: it in place.
  • Page 13: Finish The Wing

    ❏ ❏ 10. Lift the wing off your work surface. If this is your second time through this section, go back to the start of “BUILD THE WING” and build the other wing half. If this is your fourth time through this section, go to “FINISH THE WING”.
  • Page 14: Build The Ailerons

    ❏ ❏ 2. Using the plans and the leading edge BUILD THE AILERONS gauge as a reference, razor plane and sand the leading edge to shape. ❏ ❏ 1. From two 3/32" x 3" x 42" balsa sheets, cut two aileron sheets 18-9/16" long. Pin one in place over the aileron section on the plan.
  • Page 15: Build The Fuselage

    BUILD THE FUSELAGE ASSEMBLE THE FIREWALL We tested our prototype Super Decathlons with an O.S. ® 1.20 4-stroke and with a 25cc US Engine ™ From this point forward when we refer to a glow ❏ ❏ 5. Shape the leading edge, hinge doublers and installation, we are referring specifically to the the control horn support to the shape of the ribs.
  • Page 16 ❏ 8. Loosely mount the Great Planes 60 - 120 engine mount to the engine mount spacer/firewall with four 8-32 x 1-1/4" socket head cap screws and #8 washers. Slide the mount halves to the widest position, then tighten the mount to the firewall. ❏...
  • Page 17 GAS ENGINE INSTALLATION The following steps are for a gas engine installation. Skip these 10 steps if you are using a glow engine. ❏ 4. Using a hammer, gently tap four 1/4-20 blind nuts into the back of the firewall. Glue in place with thin CA.
  • Page 18: Build The Bulkheads And Fuselage Sides

    BUILD THE BULKHEADS AND THE FUSELAGE SIDES ❏ 1. Place the FUSELAGE PLAN on your workbench and cover the bulkheads with Plan Protector. ❏ 7. Remove the engine and mount from the firewall. Using your rotary tool, make clearance holes in the firewall for the engine mounting bolts and washers.
  • Page 19 ❏ 6. Glue the die-cut 1/8" balsa top longeron and ❏ 10. Lift the left fuse side off the right side and lay die-cut 1/8" balsa bottom longeron to the fuse sides. it down mirrored to the right fuse side. Write “left” on the inside for clarity.
  • Page 20: Assemble The Fuselage

    ASSEMBLE THE FUSELAGE ❏ 1. Pin the die-cut 1/8" ply fuse bottom in place on the top view plans. Note: Make sure the slot in the front of the fuse bottom matches the plan. This slot helps set the right thrust. ❏...
  • Page 21 ❏ 13. Sand bulkheads 4, 5 and 6 flush with the top of the fuse. ❏ 14. Turn the fuse upside-down. Glue the servo tray to bulkheads 5 and 6. ❏ 15. Sand bulkheads 5 and 6 flush with the bottom of the fuse.
  • Page 22: Mount The Wing

    bulkheads, then the first front ply shear web. DO NOT drill through the second shear web. ❏ 22. Fit and epoxy the 1/4" x 1-3/4" x 5-3/4" ply wing bolt plate. ❏ 3. From the 5/16" dowel, cut two 3" pieces. Fit the 5/16"...
  • Page 23 ❏ 7. On each of the wing bolt plates make a mark 1" ❏ 9. Drill two 13/64" tap holes at the marks you made from the trailing edge and 2" from the root of the wing. on the wing bolt plates through the wing bolt plate. ❏...
  • Page 24 SHEET THE TOP LINE UP WITH THE WING ❏ 3. Glue the tank floor, with the tank attached, in place in the fuse. ❏ 4. Attach the fuel lines to your tank and route them through the firewall. Note: You may have go up through the front deck plate with the carburetor line.
  • Page 25: Finish The Bottom Of The Fuselage

    ❏ 2. From a 1/4" x 1/4" x 30" balsa stick, cut and glue the four belly pan stringers in place. ❏ 7. Using two 1/4" x 1/4" x 30" balsa sticks, fit and glue the seven front deck stringers in place. ❏...
  • Page 26 ❏ 7. Glue the die-cut 1/8" ply sub-formers 3, 4, 5 ❏ 10. Sand a taper on one 6" end of the sheet so and 6 in place perpendicular to the fuse bottom. that when the sheet is positioned on sub-formers 5 Glue the two die-cut 1/8"...
  • Page 27 ❏ 12. Trim the sheeting and sand the edge to the ❏ 15. Round the edges of the belly pan sheeting angle of the sub-formers. to shape. ❏ 13. Glue the third 1/8" x 3" x 7-5/8" sheet to the side of the sub-formers and to the center of sub- ❏...
  • Page 28: Mount The Tail

    horizontally as well. When satisfied with the fit and alignment, glue the stab to the fuselage with 30-minute epoxy. ❏ 3. Cut the 1/2" x 12" balsa triangle stock in half, making two 6" pieces. Glue them to the fuse and the bottom of the stab.
  • Page 29: Make And Mount The Wing Struts

    MAKE AND MOUNT THE WING STRUTS ❏ 1. Drill an 1/8" hole which is 3/4" deep in one end of each of the four shaped basswood wing struts. ❏ 6. Laminate two of the die-cut 1/8" balsa top spines, making a 1/4" spine. Laminate the other two, making a second 1/4"...
  • Page 30 ❏ ❏ 6. Mount the wing to the fuselage. Screw one of the 6-32 x 1-1/2" studs all the way into one of the nylon strut ends. Mount the strut end (and stud) in the forward hole in the wing. ❏...
  • Page 31: Finish The Windshield And Cowl

    to the two rear halves and test fit it over the front of FINISH THE WINDSHIELD the fuse. After all the fitting is done, glue all joints AND COWL with thin CA. ❏ 7. Cut the holes in the cowl for the engine, carburetor, air inlets and air exit.
  • Page 32: Set The Control Throws

    This material has a painted appearance with a pieces together for the throttle servo. Mount the fabric texture. It will make your Super Decathlon servo in the mount. Glue the servo mount to the look like it has been covered with fabric and...
  • Page 33: Balance Your Model

    BALANCE THE MODEL PREFLIGHT LATERALLY BALANCE YOUR PROPELLERS Do not confuse this procedure with “checking the C.G.” which will be discussed later in the Many problems are the result of vibration caused manual. by an unbalanced propeller. Nuts and bolts can vibrate loose.
  • Page 34: Range Check Your Radio

    When you start and run the engine, keep your face RANGE CHECK and body as well as all spectators away from the YOUR RADIO plane of rotation of the propeller. Keep loose clothing, shirt sleeves, ties, scarfs, long Check the operational range of the radio before the hair or loose objects away from the prop.
  • Page 35: Flight

    Super Decathlon up for the first time and the same basic flying characteristics. Your Dynaflite make sure it performs correctly, then give you Super Decathlon faithfully duplicates these same valuable flight instruction. He can hand you the characteristics.
  • Page 36 TWO VIEW DRAWING Use copies of this page to plan your trim scheme...

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