Comco Ikarus C42-E Pilot Operating Handbook Download Page 8

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C42E 540kg LSA POH Issue 3 China

15.03.2016

Page 8 of 36

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.

Red Line:

139 mph (121 kt) V

VELOCITY NEVER EXCEED.

Yellow Triangle:

62 mph, 54 kt - Recommended Minimum Approach Speed

Airspeeds -

all speeds are Indicated Air Speeds (IAS).

Stall speed, full flaps:

40 mph,

35 kt

Stall speed, flaps retracted:

48 mph,

42 kt

Max. flap extended speed :

78 mph,

68 kt

Max. manoeuvring speed,

103 mph,

90 kt

, Never Exceed Speed:

139 mph,

121 kt

NE &

A limitations are affected when flying with doors removed:

VNE (Velocity Never Exceed): 93 mph, 81 kt.

Service Ceiling:

not defined.

Structural limitations

Positive limit load factor

4g (at all speeds)

Negative limit load factor

-2g

Approved Manoeuvres

Non-aerobatic operation only.
Any manoeuvre necessary for normal flight.
Stalls.
Steep turns with bank angles not exceeding 60

Summary of Contents for Ikarus C42-E

Page 1: ...ate 15 03 2016 Page 1 of 36 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 ...

Page 2: ...rmation added 5 4 Cruise conditions corrected 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 21 01 2013 3 4 8 Flap speed conversion to kt corrected 3 17 Grammatical correction 4 1 Overhaul and Inspection Neuform Propeller 4 8 Flap speed conversion to kt an...

Page 3: ...ry instruments 13 3 17 Loss of flight controls 13 4 NORMAL PROCEDURES 14 4 1 Preflight check 14 4 2 Engine starting 15 4 3 Taxiing 16 4 4 Normal takeoff 16 4 5 Best angle of climb speed 17 4 6 Best rate of climb speed 17 4 7 Cruise 18 4 8 Approach 18 4 9 Normal landing 18 4 10 Short field takeoff and landing procedures 19 4 11 Soft field takeoff and landing procedures 19 4 12 Balked landing proced...

Page 4: ...grades 28 8 6 Approved oil grades 28 8 7 Cleaning and care 28 9 SUPPLEMENTS 29 9 1 Attaching the wings to the folding mechanism Optional 29 9 2 Rigging the wings 29 9 3 Folding the wings to hangar the aircraft 30 9 4 Flying Without Doors 32 9 5 Air pressure for tires and shock absorber 32 9 6 Owner change of address notice 32 9 7 Notification of technical defect and or damage to the aircraft 33 9 ...

Page 5: ... the same safety standards found in other classes of aircraft Prepare your flight so that you can always reach an emergency landing area should you experience engine failure On cross country flights ALWAYS keep an emergency landing field in sight Changes to the control system structure wings and engine are prohibited These changes would invalidate any certificate of Airworthiness or permit to fly ...

Page 6: ...mco ikarus de Backup Certification Data Contact Information COMCO IKARUS GmbH Am Flugplatz 11 88367 Hohentengen Swabia Germany Tel 49 7572 600 80 Fax 49 7572 3309 Email post comco ikarus de Owner ______________________________ ______________________________ ______________________________ This Pilot Operating Handbook belongs to the aircraft _________________ and is to be kept in the aircraft at al...

Page 7: ...turns excellent fuel economy and a high power to weight ratio Gross weight 540kg 1191lb Top speed 111kt IAS sea level Rotax 912ULS Cruise speed 100kt IAS 75 power sea level Rotax 912ULS Fuel Range 320nm 65L tank 75kt 140 kmh cruise sea level 1hr reserve Climb rate 930fpm at 66kt IAS Rotax 912ULS Stall speed VS0 35kt IAS full flap 37 kt 68 kmh VS1 38kt IAS half flap 40 kt 74 kmh VS 42kt IAS no flap...

Page 8: ... Speed Airspeeds all speeds are Indicated Air Speeds IAS VS0 Stall speed full flaps 40 mph 35 kt VS1 Stall speed flaps retracted 48 mph 42 kt VFE Max flap extended speed 78 mph 68 kt VA Max manoeuvring speed 103 mph 90 kt VNE Never Exceed Speed 139 mph 121 kt VNE VA limitations are affected when flying with doors removed VNE Velocity Never Exceed 93 mph 81 kt Service Ceiling not defined Structural...

Page 9: ... note 5500rpm max continuous Operational Limitations This aircraft must be flown under daylight VFR conditions only must not be flown in known airframe icing conditions must not be flown in conditions of moderate turbulence or above or in winds exceeding 22 kts at surface level less if gusty max demonstrated Crosswind component 15 kt Weight and Balance Maximum Take Off Weight MTOW 540 kg Center of...

Page 10: ...traight ahead Do not attempt to turn back to the airfield If you have sufficient height and time make a MAY DAY call Stay on the frequency you are already on if contact established Remember it is more important to keep flying the aircraft on your planned approach than any other action 3 5 Loss of engine power in flight Set attitude for best glide at 65 knots and trim This is a good compromise spee...

Page 11: ... a good compromise speed and easy to achieve quickly Assess the wind direction and select a suitable landing area into wind Plan your approach and execute this action If you have sufficient height and time make a MAY DAY call Stay on the frequency you are already on if contact established Remember it is more important to keep flying the aircraft on your planned approach than any other action Do no...

Page 12: ...not continue to fly at high speed if visibility is very bad 3 8 Fire in flight Main fuel shut off valve OFF Electric fuel pump OFF Full throttle to burn the remaining fuel fast Maximum permissible airspeed to put out the flames Call MAYDAY Follow emergency landing without engine power procedures 3 9 Loss of oil pressure Follow precautionary landing with engine power procedure 3 10 High oil pressur...

Page 13: ...w speed until sure any ice has cleared 3 16 Loss of primary instruments Land as soon as possible at a suitable airfield Consider runway length and availability of emergency services 3 17 Loss of flight controls I Should you lose elevator control due to a mechanical failure trim the aircraft to 70 mph 60kt With a reduced power setting make a shallow power on landing approach throttle back and flare...

Page 14: ...tructed and extended to end of red mark 21 Cockpit area inside and out check controls full movement free and correct direction 22 Instruments serviceable 23 Open fuel tank sump drain and check for contamination 24 Check tank water drain for leaks When checking the oil level it may be necessary to pump the oil back into the reservoir to obtain a correct reading and to avoid overfilling This can be ...

Page 15: ... CLEAR ALL AROUND Flap NEUTRAL no flap Non essential electrics TURNED OFF Carb Heat OFF Main fuel shut off valve OPEN Master switch ON Electric fuel pump ON Throttle at idle FULL AFT Magnetos both ON Propeller area CLEAR Rear of aircraft CLEAR Choke PULLED OUT Shout CLEAR PROP START ENGINE After engine starts choke OFF Check OIL PRESSURE RISING If Oil pressure does not rise turn off engine immedia...

Page 16: ...ing very well When taxiing with a strong tail wind hold the control stick firmly in the neutral position When taking off or landing on bumpy grass strips exercise caution to avoid striking the propeller This may require performing soft field take off and landing procedures Note with a fully aft cg it is possible for the aircraft to tip back and sit on its tail skid particularly if taxiing over une...

Page 17: ...1 5 degrees or no flap Be ready for the pitch trim change to nose down Trim the aircraft as required for the climb Best angle of climb speed Vx is 55 mph 48 kt flap at position 2 half flap However this climb speed and angle are not recommended because in the event of an engine failure it is possible that control of the aircraft may be lost The aforementioned procedure is therefore recommended This...

Page 18: ...you can select full flap simultaneously lowering the nose to maintain 55 kts Continue your approach at 63 mph 55 kts and trim if required Minimum approach speed in this configuration is 62 mph 54 kts In calm conditions it is acceptable to use side slip technique to increase your rate and angle of descent but it is recommended the aircraft is returned to a standard approach configuration before rea...

Page 19: ... at least 48kt best angle of climb speed before establishing a climb at the desired speed Landing Select full flap and establish a powered approach at the 54kt recommended minium approach speed the yellow triangle on the ASI Maintain this airspeed with the elevator whilst adjusting the power to control the flight path and descent rate to position low over the end of the runway ready to close the t...

Page 20: ...ing drops centrally reduce back pressure on the stick and lower the nose Prevent further yaw with the rudder and do not attempt to lift the wing by aileron input At approximately 49 mph 43 kt there will be a slight buffeting of the airframe The aircraft is still controllable However aileron input should not be used and the stick kept central with any tendency for the wing to drop use opposite rudd...

Page 21: ... Best climb rate 930fpm Rotax 912ULS at 66kt Best angle of climb speed 48kt 5 4 Cruise conditions Because lightweight aircraft are more strongly affected by loading conditions and propeller setting the pilot is encouraged to plan very conservatively until experience is gained of his aircraft s fuel consumption at the conditions in which his aircraft is normally operated Typical economic cruise spe...

Page 22: ...d the reading of each scale a 770mm b 1540mm Calculate the position of the empty cg from the formula mm G G b G a X 2 1 1 a and b are values to be measured for the specific aircraft Insert the values for total empty weight G1 G2 and cg distance aft of datum X into the table below Multiply Empty Weight kg by cg distance aft of datum mm to derive empty weight moment kg mm in the last column Complete...

Page 23: ...ight kg 6 2 Conditions of weighing The dry empty weight of the aircraft is defined under the following conditions All normal installed equipment fitted Oil and coolant levels normal No usable fuel Note Remaining within the maximum Take off Weight MTOW of 540 kg 1191lb is the pilot s responsibility 6 1 Equipment list When weighing the aircraft make a note of the aircraft configuration Such an equip...

Page 24: ... aft loads In normal g flight these struts are under tension In g flight both leading and trailing edge tubes inboard of the wing struts junctions experience compression loads from the wing struts as well as direct bending from lift loads The wing tail empennage and all control surfaces are constructed of thin walled aluminium tubing They are covered by a reinforced polyester fabric sewn into comp...

Page 25: ... opposing forces from two pilots being applied to the rudder pedals In this event a large proportion of the load is borne by the rudder cables themselves Two light springs are fitted to the rudder pedals to aid centering Pushing the right rudder pedal forward results in the rudder moving to the right pushing the left pedal forward results in the rudder moving to the left Trim An electric pitch tri...

Page 26: ...ading and that of the coolant temperature with the CHT gauge likely to read low and to have a slower response Although the CHT gauge may indicate an acceptable temperature it must not be assumed that the coolant temperature lies within limits Switches A master switch provides isolation of the battery from the main bus The master switch must be closed on before attempting to start the engine and mu...

Page 27: ...owing propeller types and settings are approved for use 100hp Neuform CR3 3 blade 1 75 m Ø Pitch 27º 310mm from hub edge Full throttle ground static RPM 4700rmp 4800rpm prop 1950 rpm Slight adjustment to the pitch of each of the above propellers may be necessary to obtain the correct ground static rpm An optical tacho on the propeller is the preferred method of measuring the engine speed All appro...

Page 28: ... Place a piece of timber under the tail skid then push the tail down on to it Add further weights to the tail to stabilise the aircraft in this attitude 8 2 Towing instructions The aircraft should not be towed by powered means 8 3 Tie down instructions The aircraft may be tied down temporarily using ropes or straps around the propeller hub and around the lift struts where they attach to the wing 8...

Page 29: ... a small hangar space 9 2 Rigging the wings If you are tall but weak it may be easier to manipulate the wing during rigging by holding it at its tip If you are short and strong the better handling point is the top of the wing struts If you are short and weak fetch a friend If you are short weak and friendless don t derig Before attempting rigging take a look at the wing roots and the way in which ...

Page 30: ...s to the central bellcrank connection Carefully ensure that the slide mechanisms of the special link connectors are properly engaged closed and locked Step 16 On the flap drive tube take the split sleeve fitted around the sprung taper pins and through which they protrude spread it a little then rotate it over the pins Using this sleeve as an aid squeeze it thus compressing the pins Then move the s...

Page 31: ...e same time If the rear spar does not disengage gently rock the wing from side to side pulling gently and twisting it until it does Step 16 Pull out the wing until it stops on the stop wire Ensure that the stop wire runs over the TOP of the aileron operating push tube before folding back the wing Step 17 Draw back the wing away from the fuselage until the movement is stopped by the stop ring on th...

Page 32: ... for removing and replacing the doors carefully Open door and remove safety clip from gas strut and safety ring from rear clevis pin but do not unclip gas strut or remove clevis pin at this stage Place a piece of tape over the hinge bolt to prevent it turning in or out Carefully support the door and unclip the door strut ball joint then remove the clevis pin Carefully slide the door off the front ...

Page 33: ...ufacturer 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 of flight hours when damage defect occurred Engine hours No of flight hours pilot on aircraft Description of damage defect Description of how damage occurred Notified by Name Date Signature FB 105 Customer Failure Report ...

Page 34: ...ntakes unobstructed Front gear assembly tyre pressure condition and creep Starboard door hinges gas strut attachments and door lock operation normal Starboard main gear assembly tyre pressure condition and creep Starboard wing assembly structure and covering Starboard aileron control linkage and hinges secure Starboard flap control linkage and hinges secure Fuel filler cap secure Check fuel quanti...

Page 35: ...and hatches secure no light visible at bottom of door Loose items stowed Flight instruments set and correct Engine temperatures and pressures within limits Magneto check at 3500 rpm max drop 200 rpm Throttle to idle Reset throttle to 2000 rpm Carb heat ON Fuel ON Aux fuel pump ON contents sufficient Trim set for take off and flaps set as required Carb heat OFF should have been on a minimum 15 secs...

Page 36: ...o land RUNWAY CLEAR Flaps up neutral Aux fuel pump OFF Lights OFF SHUTDOWN Brakes ON Magneto check at 2000 rpm Radio Transponder Nav aids OFF Throttle to idle Aux pump OFF Lights OFF Check Hobbs reading and record time Magnetos OFF Strobe OFF if fitted Master switch OFF EMERGENCY SHUT DOWN T Throttle closed I Ignition and magnetos OFF F Fuel OFF S Security Harnesses Hatches EXTREME MANOUVRE H Heig...

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