C42 SERIES Pilot Operating Handbook
POH Issue 4 Rev. 5 Page 29 of 91
With sufficient altitude you may attempt to restart the engine, check:
1. Fuel valve .................................................................................... O P E N
2. Magneto switches .............................................................................. O N
3. Fuel ............................................................................ S U F F I C I E N T
4. Fuel pump .......................................................................................... O N
III Starting the engine in flight
Starting during flight with the engine intact is done as follows:
- both magneto switches .................................................................. O N
- electrical fuel pump ........................................................................ O N
- throttle ................................................................................. ¼ O P E N
- carburettor heat .......................................................................... O F F
- fire up using engine starter
Maintaining airspeed to windmill the prop can help.
4.9 Using the optional cowl flap on the aircraft C42
If your aircraft is equipped with the cowl flap, you have a possibility to control
the temperatures of your engine via manual adjustment of the cooling air.
There by, you are in the position to keep the engine temperatures in the
optimal range 194° - 230°F (90° - 110°C) independent of outside
temperatures. It works in C42 both for the oil and cylinder head temperature
and coolant temperature due to the installed oil and water heat exchanger.
Moreover, you can considerably shorten warm-up period by starting up the
engine with a fully closed cowl flap.
It does not only protect the engine but also saves fuel. Though, for a
reasonable and secure handling of the cowl flap it is necessary to closely
watch the oil and cylinder head temperature.
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