User manual

DodoSim 206 FSX User Manual

Page 61

26. Starter button CONTINUE TO HOLD – Observe N1 rise and rotor speed increase.

27. Monitor Exhaust Gas Temperature – if over yellow band then cut fuel by fully closing the

throttle and depressing the idle release latch or closing the fuel valve, continue to motor

starter, do not release until temperature decreased into the yellow band.

28. At 58% N1 – Observe ENG OUT annunciator light extinguishes

- RELEASE STARTER BUTTON

29. Wait for rotor (NR) to stabilise at approximately 60%

30. Increase throttle slowly to raise NR to approximately 70% - Observe NR increase

31. Generator switch to ON

32. Decrease throttle back to idle stop – Observe NR decay to approximately 60%

33. Avionics switch to ON

34. Pitot head switch to AS REQUIRED

35. Anti-icing switch to AS REQUIRED

36. Wait for 1 minute for oil temperatures to stabilise if engine has been shut-down for 15 minutes

or more

Important note: This is mandated at difficulty level 5 only, if damage to the engine is not to

occur.

37. Position light switch to ON

38. Throttle smoothly to fully open – ensure throttle is opened slowly enough that torque does not

exceed 40% during rotor run up to prevent damage caused by torque spike

- Observe rotor run up to 100%

39. Directional Gyro switch to ON to slave directional instruments to gyro.

40. Check all instruments are operating and in the green where required.

Note that once combustion has started and N1 is greater that 15%, it is impossible for the pilot to over-

fuel the engine. During the start process, the Bendix FCU delivers only enough fuel to start the engine

and no more. If the pilot were to open the throttle beyond the 6% idle stop point, no further fuel is

added. It is however inadvisable to do this, as the throttle must then be reduced further in the event that

a hot start occurs and the throttle needs to be closed quickly.

4.1.1.2 CECO FCU

The CECO FCU is a little more complicated to operate than the Bendix FCU in that it is easier for the

pilot to make a mistake and damage the engine. However, it provides greater control over the start-up

Exhaust Gas Temperature as the throttle input can be modulated to provide more or less fuel and thus

control the temperature more precisely. Note however than unlike the Bendix system, the pilot can

easily over-fuel the engine, causing a rapid increase in temperature and a subsequent “hot start” that

may cause significant engine damage.

Since most of the procedure is identical to the Bendix FCU procedure, this abbreviated procedure shall

focus only on the differences: