C42 SERIES Pilot Operating Handbook
POH Issue 4 Rev. 5 Page 25 of 91
4.3 Cruising flight
In cruising flight the most economical cruise speeds are between 75 and
91 kn (140 – 170 km/h) – C42CS: 86 – 103 kn (160 – 190 km/h). The
required engine performance depends upon aircraft load.
Max continuous engine speed is 5500 1/min.
In order to fly the aircraft comfortably, it should be trimmed to the desired
airspeed with the throttle set for the appropriate rpm for horizontal flight.
Typical cruising flight:
Rotax 912 UL Rotax 912 ULS
Engine speed 4500 1/min 4500 1/min
Airspeed: 81 kn (150 km/h) 86 kn (160 km/h)
Fuel flow: 2.20 - 2.64 gph 2.42 - 2.86 gph
(10 -12 l/h) (11 - 13 l/h)
The maximum speed of must never be exceeded.
C42 ................................................................................... 97 kn (180 km/h)
C42B / C42E / C42C ........................................................ 116 kn (216 km/h
C42CS ............................................................................ 121 kn (225 km/h)
In a turbulent weather the maximum airspeed is 97 kn (180 km/h),
C42CS the maximum airspeed is 101 kn (187 km/h)
At the first indication of carburettor icing (rpm drop, stuttering engine
running, increase in fuel consumption as indicated by the flow meter, if
installed) apply carburettor heat and, if possible, fly the aircraft into non-
icing conditions.
4.4 Turning flight
Turns are coordinated using the aileron and rudders.
With the increase of airspeed, significantly less amount of rudder
deflection is needed.
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