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ranguli / dhc6

Simulation of the DHC-6-300 Twin Otter for the Flight Gear flight simulator.
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Add simulation of hot starts when opening fuel valve too early during startup #15

Open ranguli opened 3 weeks ago

ranguli commented 3 weeks ago

Opening the fuel valve too early during the startup process should be able to cause a hot start. This is not currently simulated.

  1. During engine start, opening the fuel valve (red lever) too early has no effect on the starting procedure - mainly the T5 temperature (hot start).
  2. The T5 temperature during engine start should quickly rise to almost the limit as fuel is added, then stabilize at a lower value. This did not happen.
  3. The throttle travel range reached the limit too quickly - I initialy should be able to easly extend the torque limit, but I quickly lose the ability even to maintain the torque limit reaching 100% throttle movement.
  4. Torque should be independent of airspeed. Here the faster you fly, the more torque you get. Why?
  5. During propeller speed changes, torque should also change as RPM x TRQ should be fairly constant above around 1500 RPM. Here prop RPM has no effect on TRQ
  6. Related to point 3. and 4. On the ground (0 KTS) the torque limit should be reached around 60-70% of the throttle range. When I set full throttle here on the ground I only get 44% TRQ - WRONG. Looks like corelation TRQ x RPM was here wrongly replaced with TRQ x airspeed.