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Summary of Contents for Comco Ikarus C42-E
- Page 1 C42-E 540kg LSA Pilot’s Operating Handbook POH/C42E/003/Rev.1 China Airplane Registration Number __________________ Airplane Serial Number ________________________ Issue 3 Rev. 1 Date of Issue: 31th March 2016 C42E 540kg LSA POH Issue 3 China Date: 15.03.2016 Page 1 of 36...
- Page 2 RECORD OF MANUAL REVISIONS Issue Change/Description Date Signature Initial Issue. Based on ASTM F 2245-11 06/07/2011 Page 6: Manufacturer Contact Information added 4.1 Preflight check, item 17 corrected, Neuform propeller servicing note information added 5.4 Cruise conditions corrected 21/01/2013 9.4 Flying without doors, Reference to PFA and BMAA removed, Owner change of address notice now Section 9.6 9.7 Notification of defects, Form FB-105 added 9.8 Daily inspection duplicate removed...
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Page 3: Table Of Contents
TABLE OF CONTENTS Page GENERAL INFORMATION .......................... 7 LIMITATIONS ............................... 8 EMERGENCY PROCEDURES ........................10 General Information ..........................10 Emergency Airspeeds .......................... 10 Engine fire during startup ........................10 Engine failure during takeoff ........................ 10 Loss of engine power in flight ......................10 Emergency landing without engine power ................... - Page 4 Propellers ............................. 27 HANDLING AND SERVICING ........................28 Ground handling ........................... 28 Towing instructions ..........................28 Tie-down instructions ........................... 28 Fluids ..............................28 Approved fuel grades ........................... 28 Approved oil grades ..........................28 Cleaning and care ..........................28 SUPPLEMENTS ............................29 Attaching the wings to the folding mechanism.
- Page 5 All operating difficulties and equipment failures should be reported to your dealer or the manufacturer. Background History The aircraft is largely designed and manufactured by Comco Ikarus Gerätebau GmbH, based at Mengen Airport in Southern Germany. It is the natural successor to the Company’s market leader, the C22, of which over 1200 examples have been built.
- Page 6 COMCO IKARUS GmbH Am Flugplatz 11 88367 Hohentengen / Swabia Germany Tel: +49 7572 600 80 Fax: +49 7572 3309 Email: post@comco – ikarus.de Backup Certification Data Contact Information COMCO IKARUS GmbH Am Flugplatz 11 88367 Hohentengen / Swabia Germany...
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Page 7: General Information
GENERAL INFORMATION The C42 E is a conventional modern light aircraft. Constructed around a tubular aluminum framework with composite fairings and laminate-fabric flying surface coverings it is aerodynamic, lightweight and easy to maintain and repair. Fitted with an efficient Rotax 912ULS four-stroke flat-four engine it requires minimal maintainence and yet returns excellent fuel economy and a high power to weight ratio. -
Page 8: Limitations
LIMITATIONS Airspeed markings - all speeds are Indicated Air Speeds (IAS). White Arc: 40 to 78 mph (35 to 68 kt) —full flap operating range. Green Arc: 48 to 110 mph (42 to 96 kt) — normal operating range. Yellow Arc: 110 to 139 mph (96 to 121 kt) CAUTION, DO NOT USE IN TURBULENCE. - Page 9 Fuel Fuel capacity: 17US Gallons Fuel Type: Unleaded Premium Autogas MON 85, RON 95, AKI 91 minimum AVGAS 100LL See Rotax manual for advice Maximum engine power output Rotax 912ULS 100hp at 5800rpm note 5500rpm max continuous Operational Limitations This aircraft must be flown under daylight, VFR conditions only.
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Page 10: Emergency Procedures
EMERGENCY PROCEDURES General Information The C42 E is a very easy to fly aircraft, capable of controlled landing at slow speed onto moderately rough surfaces. Emergency Airspeeds Best glide speed 76mph, 65kt Glide angle 10:1 Approach speed 62mph, 54kt Yellow triangle marker on ASI Stall speed full flap 40mph, 35kt Bottom of white arc on ASI... -
Page 11: Emergency Landing Without Engine Power
Do not turn your back on the planned landing site or make a 360 degree turn. A constant aspect approach is recommended coupled with beats and turns and or sideslip to increase rate of descent. IMPORTANT: SHUT DOWN CHECKS (Prior to landing) Throttle closed Master... -
Page 12: Precautionary Landing With Engine Power
Precautionary landing with engine power If engine trouble is suspected and a suitable landing area is available execute a normal glide approach. Assume that the engine may not produce any power. If no suitable landing area is immediately available do not allow height to be lost whilst proceeding to a more suitable area. -
Page 13: Inadvertent Spin
3.14 Inadvertent spin Close throttle. Centralize stick and rudder controls. The aircraft will recover very quickly to a steep dive. Retract flap if deployed (unlikely, the aircraft is very hard to spin with full flap). Gently ease of out the dive and return to normal flight. 3.15 Inadvertent icing encounter Activate carburetor heat control. -
Page 14: Normal Procedures
NORMAL PROCEDURES Preflight check Daily Inspection / Pre-flight Inspection Engine and cowling secure and undamaged. Check coolant level correct. Check oil level within limits.* Check fuel level Propeller clean and undamaged , bolts secure. Front gear; tyre pressure, tyre condition and tyre creep. Left main gear;... -
Page 15: Engine Starting
Engine starting Description: The 912ULS is 4 cylinder, four stroke, horizontally opposed engines. This is cooled by a combination of air-cooled cylinders and liquid cooled heads. The engine oil is cooled with a special oil / water heat exchanger. The C42E aircraft utilise an oil/water heat exchanger in place of the oil radiator. A carburettor heat control is also fitted which draws air from around the exhaust, via the usual air filter. -
Page 16: Taxiing
After Start Aircraft holding on brakes Auxiliary fuel pump Oil pressure within limits Set rpm to 2000 for 2 minutes, then 2500rpm until warmed Choke is Check idle Charging lamp showing Radio ON (If fitted) Check clear for taxi Reduce throttle to idle before releasing brake Taxiing During Taxi Brakes operating properly... -
Page 17: Best Angle Of Climb Speed
Flap set to position 2 (11degrees / half flap) if required CARB Heat off. Check ALL CLEAR Check full power during take off roll Complete the pre-take checklist ‘VITAL ACTIONS’ above. Ensure the trim is set to one step above neutral, as indicated by a centre-scale reading on the trim indicator and the flap are set as required (Max position 2, 11 degrees, half flap). -
Page 18: Cruise
Cruise Note: Typical economic cruise speeds lie in the range 80 to 105 mph (70 to 90 kt); 109 mph (95 kt) with the 100 hp engine. Maximum continuous engine speed is 5500 rpm for the 100 hp 912ULS. Variations in rpm and cruise performance occur with different loads. Typical cruising flight (100 hp) Engine speed: 4800 rpm. -
Page 19: Short Field Takeoff And Landing Procedures
The generic wing down approach is recommended. If you are not fully aware of crosswind techniques you should consult an approved instructor. The following description is for guidance and not a substitute for proper instruction. Below 200 feet on the approach, apply rudder to align the nose of the aircraft with the centreline of the runway simultaneously lowering the into-wind wing with aileron to maintain your track down the centreline (preventing drift). -
Page 20: Balked Landing Procedures
4.12 Balked landing procedures Smoothly apply full power. Establish the aircraft in a climb at 60kt. Retract the flap if deployed. Other information: 4.13 Turning flight In turning flight, it is necessary to co-ordinate the use of the ailerons and the rudder. At normal cruising speeds 80 mph (70 kts) to 103 mph (90 kts) initiate the turn with aileron maintaining balance as necessary with rudder. -
Page 21: Performance
PERFORMANCE Takeoff distance to clear 15m, 50’ obstacle Take off ground roll: 100m Take off distance to clear 15m: 250m total at 54kt, half flap, Rotax 912ULS. (Including ground roll) Landing distance to clear 15m, 50’obstacle Landing ground roll: Landing distance to clear 15m: 310m total at 54kt, full flap. -
Page 22: Weight And Balance
WEIGHT AND BALANCE Weight and balance calculations The centre of gravity is measured in mm behind the zero datum. Zero datum is the leading edge root. The aircraft’s empty weight and cg are derived first: Place the aircraft in a level position on three scales, such that the stabilizer is horizontal (0°), as shown below. -
Page 23: Equipment List
Loading plan Position weight lever arm moment kg.mm Empty weight 1. Seats 2. U nder seat bags 3. Fuel 4. Samsonite case Total W eight kg T otal Moment kg.mm T otal Moment kg.mm centre of gravity CG = ------------------------------------------ = cm mm T otal W eight Conditions of weighing... -
Page 24: Description Of Airplane And Systems
DESCRIPTION OF AIRPLANE AND SYSTEMS The C42 E is a simple aircraft whose structures and systems are readily inspected and maintained. However, since some of its systems differ from those found on conventional aircraft; this section should be studied before dismantling, repair or inspection. Airframe Fuselage A 165 mm diameter aluminium tube runs from nose to tail and carries all the major assemblies: engine,... - Page 25 Roll The stick is also connected to a torque tube mounted on top of the fuselage tube between the seats, and turning on a Rose joint at each end. The rear of the torque tube carries a pair of horns from which run control cables, one for each side.
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Page 26: Instrument Panel
Instrument panel Battery A small lightweight lead acid battery is installed beneath the instrument panel for engine starting. It has a capacity of 5 amp hours and very high current capability. No maintenance is required, apart from keeping the contacts clean and dry. The battery is charged from the engine’s in-built alternator, via a rectifier-regulator unit. -
Page 27: Engine
Engine The 100 hp Rotax 912ULS is installed and drives the propeller via a gearbox with a reduction ratio of 2.43:1 respectively. The power plants is flat 4 cylinder, 4 stroke engines with air and oil cooled cylinders and water-cooled heads. Full descriptions of the engine, its performance and maintenance requirements are to be found in the Rotax manual. -
Page 28: Handling And Servicing
HANDLING AND SERVICING Ground handling The aircraft may be pushed or pulled by hand. Force should only be applied by grasping one or more blades close to the propeller hub, by holding the forward lift strut where it attaches to the wing, or by holding the horizontal tailplane close to the fuselage. -
Page 29: Supplements
SUPPLEMENTS Attaching the wings to the folding mechanism. (Optional). The C-42 E has an optional folding wing which minimises hangar space. For road transport however you must remove the wings completely. To attach the wings to the folding system: Step 1. Fit the jockey wheel to the stern post, fit the traingular wooden support brackets to the bottom of the tailplane struts, with the aluminium strip uppermost. -
Page 30: Folding The Wings To Hangar The Aircraft
Step 5. Turn the wing into a horizontal position and push it gently towards the fuselage. Step 6. Lifting the tip, slowly insert the wing roots into position in their channels, leading edge first. It may be necessary to gently rock and twist the wing to engage the spar hooks on to their pins. Step 7. - Page 31 Step 6. Set the flap control in its fully up position. Step 7. Disconnect the landing flaps by first spreading and rotating the aluminium split sleeve on the flap drive fitting. Then push in the spring loaded pins by squeezing the split sleeve. Step 8.
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Page 32: Flying Without Doors
Step 25. Fold in the main struts to lie flat against the lower wing surface. Secure the strut bottom with the bungee attached to the wing root. Step 26. Fold back the right wing according to steps 1 to 25. Flying Without Doors Both doors must be removed. -
Page 33: Notification Of Technical Defect And/Or Damage To The Aircraft
Notification technical defect and/or damage aircraft Any faults, problems or concerns should be reported to the manufacturer. The manufacturer’s address is given in the Introduction. Type of aircraft: Serial no.: Year of construction: Engine: Supplied by (Dealer name): Owner: Registration: No. -
Page 34: Checklists
Checklists Daily Inspection / Pre-flight Inspection Daily Inspection: Remove engine cowling and thoroughly inspect engine installation. Cockpit Check spinner secure and undamaged. • • Panel secure, all switches OFF, master key out, instruments Check cowling air intakes unobstructed. • normal, glass intact. Front gear assembly, tyre pressure, condition and creep. - Page 35 START CHECKS Flight instruments set and correct Brakes ON facing safe direction, area all clear Engine temperatures and pressures within limits Flaps neutral Magneto check at 3500 rpm (max drop 200 rpm) Main fuel tap ON Throttle to idle All switches OFF, radio, transponder OFF Reset throttle to 2000 rpm Carb heat OFF Carb heat ON...
- Page 36 DOWNWIND / AlRFlELD APPROACH SHUTDOWN Altimeter set to QFE Brakes ON Brakes OFF Magneto check at 2000 rpm Aux fuel pump ON Radio, Transponder, Nav aids OFF Fuel sufficient for go around Throttle to idle Carb heat ON Aux pump OFF, Lights OFF Engine temperatures and pressures good Check Hobbs reading and record time Activity...
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