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Auto Takeoff - engine starts with significant delay

Posted by Reto on April 20, 2014 at 2:49pm

I want to auto-start my push-propeller engine (on an X5 airframe) upon catapult launch, hence I'm using
- TKOFF_THR_MINACC and
- TKOFF_THR_DELAY but not TKOFF_THR_MINSPD (Takeoff throttle min speed, as advised).

Although I lowered TKOFF_THR_DELAY (Takeoff throttle delay) from initially 0.2s to 0.1s and then to 0, the engine won't start until after a significant delay of about 0.5 - 1 second after catapult launch.

For TKOFF_THR_MINACC (Takeoff throttle min acceleration) I started with 5 going down to 1 (m/s/s) but I can't see any difference.

What I'm doing wrong?

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Tags: tkoff_thr_delay, tkoff_thr_minacc, auto, takeoff
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Replies

  • iskess April 20, 2014 at 9:10pm
    Maybe throttle slew is slowing it down?
  • Tommy Larsen April 20, 2014 at 3:24pm

    Maybe you should try to increase TKOFF_THR_MINACC from 5 to 10 instead...?

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