- instruments check out indication
(oil pressure must rise within 10 seconds)
- choke switch off slowly (cold engine only)
- avionics and other switches switch on as required
4.2.1. Engine warm-up and test
- Warm up to operating temperature - first at idle or 2000 RPM for
2 minutes, then at 2500 RPM to reach oil temperature of 50 °C.
- Check out temperature and pressure values - must be within
operating limits all the time.
- Check out the maximum power - speed around 5000 RPM
depends on used propeller
- Check out ignition (magnetos) - set 4 000 RPM
- drop should not exceed 300 RPM on either magneto
- difference between magnetos shouldn´t exceed 120 RPM
- Check idle - 1600 RPM ±100
CAUTION: Perform the engine check on suitable terrain heading
upwind. Consider also safety of other persons. Do not operate the
engine for longer time than necessary and allow sufficient cooling
before switching off.
4.3. BEFORE TAXIING
Check from left to right:
- seat adjust
- headset connected
- seatbelts locked, tightened
Left side of cabin:
- items below armrests secured, fixed
- check copilot if ready headset, seatbelts
- cabin closed, locked, front + rear
- cabin windows closed, front + rear
- kneeboard + pen write down data, time
- fuel tank valve left
- throttle 2500 rpm
- choke closed
- cooling (cowl flaps) opened
- ventilations - airstream opened
- items below knees secured, fixed
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