Apollo FOX - Page 32

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- throttle set for start
- starter start the engine
if the engine cannot be started up, proceed in accordance with 3.2.2.2.
procedure .
3.2.3 Carburettor Icing
Carburettor icing mostly occurs when getting into an area of ice formation. The
carburettor icing shows itself through a decrease in engine power and an increase
of engine temperatures and drag. To recover the engine power, the following
procedure is recommended:
use carburetter preheating system
- airspeed 80 - 90 km/h IAS
- throttle max. at 1/3 of power ≈ (3500 r.p.m.)
- if possible, leave the icing area
- increase gradually the engine power to cruise conditions after 1-2 minutes
if you fail to recover the engine power, land on the nearest airfield (if feasible) or
depending on circumstances, off-airfield, following the procedure given under
3.2.2.2.
3.2.4 In-Flight Engine Starting
- airspeed 110 km/h IAS
- area selection depending on flight altitude
- master switch switch on
- main fuel cock open
- choke switch on (cold engine only)
- throttle adjust to 1/3 of travel
- ignition switch on
- starter start up
- if the engine cannot be started up, increase the flight speed to 140-150 km/h
so that air flow can rotate the propeller, thus enabling engine starting.
CAUTION
Loss of height needed for in-flight engine starting is about
150 -200 m.