iKarus C42 Owner's manual

POH C42 Series Issue-2 (B) rev10 30.10.2013 Page 1 of 72
PILOT OPERATING HANDBOOK
for the aircraft IKARUS C 42 Series
Modell Nr. C42 / C42B / C42C
LTZ-Nr. 61141 / 61141.1 / 61141.5
Type IKARUS C 42 Series
Airplane Registration No. __________________________
Airplane Serial-No. __________________________
Reference: POH C42 Series Issue-2 (B) rev.10
This handbook is to be kept in the aircraft at all times.
The described options of the C42 Series use are certified for Germany and
have been tested in Germany.
Please note that for using the C42 Series as a towplane for towing gliders,
towing aerial signs or decanting sky divers, different regulations may apply in
different countries. Please contact your local authorities for further
clarification.

POH C42 Series Issue-2 (B) rev10 30.10.2013 Page 2 of 72
RECORD OF MANUAL REVISIONS
No.
Issue
No.
Description of Changes
Date
Signature
1
1
POH C42 Series
30.08.2012
A.Kurz
2
1
Introduction
06.01.2013
A.Kurz
3
2
Instructions for the use of the
LiFe-Battery
24.01.2013
A.Kurz
4
2
Page 55, 63, 71 Note
Authorization
08.03.2013
A.Kurz
5
2
Page 55-67, 71-72, Appendices
7-11 removed
12.04.2013
L.Chan
6
2
Parachute Deployment,
updated table of content.
12.04.2013
L.Chan
7
2
Removing Date in Reference
line page 1
21.05.2013
L.Chan
8
2
C42B new diagram page 7
15.06.2013
L.Chan
9
2
Changing Reference line
page 1
24.06.2013
L.Chan
9
2
TEMP Amendment Page 51
09.07.2013
L.Chan
10
2
Fixture of page 51 and
removing TEMP section
30.10.2013
L.Chan
10
2
Changing Reference Line and
Issuing date
30.10.2013
L.Chan
10
2
Added a new page for
recording (page 3) Total Pages
71
30.10.2013
L.Chan

C42 Series Pilot Operating Handbook
POH C42 Series Issue-2 (B) rev10 30.10.2013 Page 3 of 72
No.
Issue
No.
Description of Changes
Date
Signature
10
2
Amended Weight and Balance
Section Page 37 & 38
30.10.2013
L.Chan
10
2
Added a new Page (5) of the
appendix, Parachute Mounting
30.10.2013
L.Chan
10
2
Total Pages 72, Amended
Table of Content
30.10.2013
L.Chan

C42 Series Pilot Operating Handbook
POH C42 Series Issue-2 (B) rev10 30.10.2013 Page 4 of 72
Manufacturer & Representative Contact Information
COMCO IKARUS GmbH DKL Air Light Sarl
Am Flugplatz 11 B.P. 143
88367 Hohentengen / Swabia L-8303 Capellen
Germany Luxembourg
Tel: [phone] Tel: [phone]
Fax: [phone] Fax: /
Email: post@comco – ikarus.de Email: [e-mail]
Backup Certification Data Contact Information
COMCO IKARUS GmbH DKL Air Light Sarl
Am Flugplatz 11 B.P. 143
88367 Hohentengen / Swabia L-8303 Capellen
Germany Luxembourg
Tel: [phone] Tel: [phone]
Fax: [phone] Fax: /
Email: post@comco – ikarus.de Email: [e-mail]
Owner ______________________________
______________________________
______________________________
This Pilot Operating Handbook belongs to the aircraft:_________________
and is to be kept in the aircraft at all times.

C42 Series Pilot Operating Handbook
POH C42 Series Issue-2 (B) rev10 30.10.2013 Page 5 of 72
Introduction
C42 series aircraft are built in compliance with the airworthiness
requirements of various countries and are certified as Microlight,
Ultralight, Advanced Ultralight and Light Sport Aircraft.
To operate the aircraft the pilot must hold a license or certificate
appropriate to this category of aircraft. The aircraft is not to be flown
unless it is registered, carries registration markings in accordance
with the requirements of the country in which the aircraft is to be
flown, and has a Permit to Fly or certificate of Airworthiness valid in
the country of operation.
The aircraft is to be flown under daytime VFR conditions. Flight in
conditions other than daytime VFR without the correct aircraft
equipment and pilot ratings is extremely dangerous and can result in
serious injury or death.
Pilots holding licences for other categories, even higher ones, are
required to be checked out by an appropriately qualified instructor
prior to flying this aircraft as it possesses characteristics that are
unique to light sport type aircraft. These characteristics include low
inertia, susceptibility to turbulence and wind gradient and special
engine considerations.
The safety of all occupants, the aircraft and persons on the ground
are the sole responsibility of the the Pilot in command. Do not operate
this aircraft in a manner that would endanger the occupants, the
aircraft or persons on the ground.

C42 Series Pilot Operating Handbook
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Bear in mind that the engines used in C42 aircraft are not certified
aviation engines and thus may not offer 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 and as such would result in an insurance becoming null
and void.
All operating difficulties and equipment failures should be reported
to your dealer or the manufacturer.
For fire safety reasons, smoking is prohibited on board of the
aircraft.

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Three side view: IKARUS C42 Series
IKARUS C42

C42 Series Pilot Operating Handbook
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IKARUS C42B

C42 Series Pilot Operating Handbook
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IKARUS C42C

C42 SERIES Flight And Operators Manual
Table of Contents
POH C42 Series Issue-2 (B) rev10 30.10.2013 Page 10 of 72
Title page 1
Record of Manual Revisions 2
Manufacturer Contact Information 4
Introductory remarks 5
Three-side view 7
Table of contents 10
1!Operating limitations ...................................................................... 13!
1.1!Airspeeds: ..................................................................................... 13!
1.2!Weights ......................................................................................... 13!
1.3!Structural limitations:..................................................................... 13!
1.4!Center of gravity limits:.................................................................. 13!
1.5!Airspeed markings: ....................................................................... 14!
1.6!Engine rpm limitations................................................................... 14!
1.7!Rpm indicator markings ................................................................ 14!
1.8!Flap settings.................................................................................. 14!
1.9!Propellers for Rotax 912 UL:......................................................... 15!
1.10!Propellers for Rotax 912 UL S ..................................................... 17!
1.11!Engine limitations according to the Rotax operating manual ....... 18!
2!Kinds of operation limitations........................................................ 19!
3!Operation of the Engine.................................................................. 19!
4!Flight Operations............................................................................. 21!
4.1!Taxiing:.......................................................................................... 21!
4.2!Take-off and climb:........................................................................ 21!
4.3!Cruising flight ................................................................................ 23!
4.4!Turning flight ................................................................................. 23!
4.5!Stalls ............................................................................................. 24!
4.6!Descent and landing ..................................................................... 25!
4.7!Shutting down the engine:............................................................. 25!
4.8!Sudden loss of engine power:....................................................... 26!
4.9!Using the optional cowl flap on the aircraft C42............................ 28!
4.10!Emergency procedures ................................................................ 29!
4.11!Parachute Deployment................................................................. 31!
5!Ground Handling ............................................................................. 32!
5.1!Towing........................................................................................... 32!

C42 SERIES Flight And Operators Manual
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5.2!Hoisting ......................................................................................... 32!
5.3!Parking .......................................................................................... 33!
5.4!Tie-Down....................................................................................... 33!
6!Minimum equipment ....................................................................... 35!
7!Dimensions ...................................................................................... 35!
8!Weight and balance......................................................................... 36!
8.1!Empty weight center of gravity: ..................................................... 37!
9!Data placard and checklist:............................................................ 39!
10!“Before take-off” checklist ............................................................. 40!
11!Approved equipment ...................................................................... 41!
12!Flight performance:......................................................................... 43!
12.1!Take-off distance.......................................................................... 43!
12.2!Rate of climb ................................................................................ 43!
12.3!Cruising speed (solo) ................................................................... 44!
12.4!Engine off performance (solo)...................................................... 44!
13!Attaching the wings ........................................................................ 45!
13.1!Attaching the wings to the fuselage ............................................. 45!
13.2!Folding the wings for hangaring ................................................... 47!
14!Pre-flight inspection........................................................................ 48!
14.1!Engine .......................................................................................... 48!
14.2!Landing gear ................................................................................ 48!
14.3!Left wing....................................................................................... 49!
14.4!Left side of fuselage ..................................................................... 49!
14.5!Empennage.................................................................................. 49!
14.6!Right side of fuselage................................................................... 50!
14.7!Right wing .................................................................................... 50!
14.8!Cabin, inside and outside............................................................. 50!
14.9!Instruments .................................................................................. 50!
14.10!Drainage....................................................................................... 50!
15!Care and Maintenance .................................................................... 51!
16!Rigging data..................................................................................... 53!
17!Special features of the aircraft equipped for handicapped pilots57!

C42 SERIES Flight And Operators Manual
Table of Contents
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18!Flying with the IKARUS C42 Series with the removed doors ..... 59!
19!Instructions for the use of the LiFe-Battery.................................. 60!
20!COMCO IKARUS Manufacturer Warranty ..................................... 61!
21!Appendix:........................................................................................... 1!
21.1!Placards ......................................................................................... 1!
21.2!Data placard................................................................................... 2!
21.3!Service Problem Report Form -Aircraft .......................................... 3!
21.4!Inspections performed.................................................................... 4!

C42 SERIES Pilot Operating Handbook
POH C42 Series Issue-2 (B) rev10 30.10.2013 Page 13 of 72
1 Operating limitations
1.1 Airspeeds:
Never-exceed speed:
C42 VNE = 97 kts (180 km/h)
C42B / C42C VNE = 116 kts (216 km/h)
Speed in turbulent air : VB= 97 kts (180 km/h)
Maximum manoeuver speed: VA= 80 kts (148 km/h)
Stall speed: flap position 1: VS1 = 40 kts (75 km/h)
flap position 2: VS2 = 38 kts (70 km/h)
flap position 3: VS3 = 35 kts (65 km/h)
If VAspeed is exceeded, only little rudder movement are allowed.
1.2 Weights
Empty weight: cf. current weighing record
Maximum take-off weight: 1041 lbs (472.5 kg)
Maximum payload: see 8. Weight and balance
Minimum payload: 144 lbs (65 kg)
1.3 Structural limitations:
Positive limit load factor: +4 g
Negative limit load factor: -2 g
1.4 Center of gravity limits:
Reference datum: Wing leading edge at a rib station
Forward center of gravity: 11.8 inches aft of datum (300 mm)
Rearward center of gravity: 22.0 inches aft of datum (560 mm)

C42 SERIES Pilot Operating Handbook
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1.5 Airspeed markings:
White arc: 38 - 57 kts (71 - 105 km/h)
Green arc: 43 - 97 kts (79 - 180 km/h)
Yellow arc C42B / C42C: 97 – 116 kts (180 - 216 km/h)
Yellow triangle: VX= 51 kts (95 km/h)
Yellow line: VA= 75 kts (148 km/h)
Red line:
C42 VNE = 97 kts (180 km/h)
C42B / C42C VNE = 116 kts (216 km/h)
The deviation curve for the airspeed indicator can be interpolated from the
following table
IAS
km/h
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
EAS
km/h
65
74
83
91
100
109
117
125
134
142
151
160
168
177
185
1.6 Engine rpm limitations
Maximum engine rpm: n = 5800 rpm, 5 min. max
Maximum continuous rpm: n = 5500 rpm
1.7 Rpm indicator markings
Yellow arc: n = 5500 - 5800 rpm
Red line: n = 5800 rpm
1.8 Flap settings
Position 1: cruising
Position 2: take-off / landing
Position 3: landing

C42 SERIES Pilot Operating Handbook
POH C42 Series Issue-2 (B) rev10 30.10.2013 Page 15 of 72
1.9 Propellers for Rotax 912 UL:
With propeller WARP DRIVE 2-blade 68” (1.72 m Ø) constant speed,
pitch 23.5° at 15.75 inches (0.40 m) from hub,
full throttle rpm on the ground max. 5450 1/min
Propeller rpm approx. n = 2400 1/min
With propeller WARP DRIVE 3-blade 68” (1.72 m Ø)
pitch 21.0° at 15.75 inches (0.40 m) from hub,
full throttle rpm on the ground max. 5200 1/min
Propeller rpm approx. n = 2300 1/min
With propeller Sport-Prop 3-blade 68” (1.72 m Ø)
pitch 19.5° at 15.75 inches (0.40 m) from hub,
full throttle rpm on the ground max. 4900 1/min
Propeller rpm approx. n = 2150 1/min
With propeller GSC 3-blade 68” (1,72 m Ø)
pitch 21.0° at 15.75 inches (0.40 m) from hub,
full throttle rpm on the ground max. 4900 1/min
Propeller rpm approx. n = 2150 1/min

C42 SERIES Pilot Operating Handbook
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With propeller Neuform CR2-75 2-blade 69” (1,75 m Ø)
pitch 27.0° at r = 14.37 inches (0.365 m),
full throttle rpm on the ground max. 5100 1/min
Propeller rpm approx. n = 2250 1/min
With propeller Neuform CR3-75 3-blade 69” (1,75 m Ø)
pitch 24.0° at r = 14.37 inches (0.365 m),
full throttle rpm on the ground max. 4800 1/min
Propeller rpm approx. n = 2100 1/min
With propeller Kiev Prop BB 263/1700 3-blade (1,71 m Ø)
Pitch 22,0° at r = 0,4 m from hub,
full throttle rpm on the ground max. 4800 1/min
propeller rpm approx. n = 2100 1/min
With propeller Helix H50F-1,75m-R-SI-12-3 3-blade (1,75 m Ø),
Pitch. 16.0° at r = 656 mm
full throttle rpm on the ground max. 4880 1/min
propeller rpm approx. n = 2150 1/min

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1.10 Propellers for Rotax 912 UL S
With propeller WARP DRIVE 3-blade 68” (1,72 m Ø)
pitch 25.0° at 15.75 inches (0.40 m) from hub,
full throttle rpm on the ground max. 5200 1/min
Propeller rpm approx. n =2150 1/min
With propeller GSC 3-blade 68” (1,72 m Ø)
pitch 25.0° at 15.75 inches (0.40 m) from hub,
full throttle rpm on the ground max. 4900 1/min
Propeller rpm approx. n = 2000 1/min
With propeller Neuform CR3-75 3-blade 69” (1,75 m Ø)
pitch 27.0° at r = 14.37 inches (0.365 m),
full throttle rpm on the ground max. 4800 1/min
Propeller rpm approx. n = 2000 1/min
With propeller Neuform CR3-V-R2H 3-blade 69” (1,75 m Ø), adjustable
pitch 16° - 30° at r = 29.53 inches (0.75 m),
full throttle rpm on the ground max. 4200 - 5600 1/min
Propeller rpm approx. n = 1700 - 2300 1/min
With propeller Kiev Prop BB 283/1800 3-blade (1,80 m Ø)
Pitch 24,0° at r = 0,4 m from hub,
full throttle rpm on the ground max. 4850 1/min
Propeller rpm approx. n = 2000 1/min
With propeller Helix H50F-1,75m-R-S-14-3 3-blade (1,75 m Ø),
Pitch 17.0° bei r = 656 mm
full throttle rpm on the ground ca. 4480 1/min
Propeller rpm ca. n = 1975 1/min

C42 SERIES Pilot Operating Handbook
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1.11 Engine limitations according to the Rotax operating manual
ROTAX 912 ROTAX 912S
Take-off (5 min) 81 hp / 5800 rpm 100 hp / 5800 rpm
Continuous 79 hp / 5500 rpm 95 hp / 5500 rpm
75% 59 hp / 5000 rpm 69 hp / 5000 rpm
65% 51 hp / 4800 rpm 61 hp / 4800 rpm
55% 43 hp / 4300 rpm 51 hp / 4300 rpm
Type of oil automotive oils (API SF or SG)
Amount of oil min 0.57 imp. gallons (2.6 l)
max 0.67 imp. gallons (3.05 l)
Oil temperature min 122°F (50°C) min 122°F (50°C)
max 284°F (140°C) max 266°F (130°C)
optimum 194°-230°F (90°-110°C)
194°-230°F (90°-110°C)
Oil pressure: normal operating pressure 29 - 72 psi (2 - 5 bar)
(cold start 101.45 psi/7 bar)
Fuel: Euro-Super ROZ 95 unleaded (DIN 51603)
Super Plus ROZ 98 unleaded (DIN 51607)
AVGAS 100 LL
Fuel pressure 2.17 - 5.80 psi (0.15 - 0.4 bar)
Cylinder head temp. max. 302°F (150°C) max. 275°F (135°C)
optimum 230°F (110°C) optimum 230°F (110°C)
Magneto check at 4000 rpm
rpm drop max. 300 rpm

C42 SERIES Pilot Operating Handbook
POH C42 Series Issue-2 (B) rev10 30.10.2013 Page 19 of 72
2 Kinds of operation limitations
- Aerobatics and manoeuvres with more than 60° bank are prohibited
- Daylight, VFR conditions only.
- No flight in icing conditions
- Do not attempt flight in turbulent conditions or in
winds exceeding 22 kts (40 km/h), and less when it is gusty.
- Always follow the appropriate regulations for this category of aircraft.
3 Operation of the Engine
The Rotax 912 is a 4-cylinder, four stroke, horizontally opposed,
water-cooled engine.
Never move the prop with the
ignition (MAG) switches on!
Fuel type for four-stroke 912 UL engine:
Super leaded or unleaded, AVGAS 100LL
To start the engine:
Main fuel valve OPEN
Electrical fuel pump ON
Throttle IDLE
Choke OPEN
Carburettor heat OFF
Ignition (both magnetos) ON
Propeller blade area CLEAR
Brakes ON
After engine starts, choke CLOSED
If the engine does not start, repeat the starting procedure.

C42 SERIES Pilot Operating Handbook
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If the engine has been flooded, close main fuel valve, open the throttle to a
half and start the engine. When the engine starts, quickly reduce the throttle
to idle.
A four-stroke engine requires a fairly long warm up period. Run the engine
at 2000 rpm for at least 2 minutes then increase to 2500 rpm until the oil
temperature is at least 122°F (50° C).
Perform the MAG check at 4000 rpm. Rpm drop should not exceed 300
rpm with a maximum difference between MAGs of 115 rpm.
In case your aircraft is equipped with a cowl flap, please refer
to the instructions in the paragraph 4.9 : when equipped with
a cowl flap