Re: [Flightgear-devel] Manifold pressure

2001-12-14 Thread D Luff

Frederic Bouvier writes:
 
 I am wondering why the manifold pressure indicator of the c172 panel is
 changing while moving the throttle knob and the engine is **off** ( 0 RPM ).
 When I do my checklist in my plane, engine off, I verify that this pressure
 is the same as QFE, and during flying, the value is decreasing, not
 increasing.
 

Erm, that would be a bug.  I'll look into it.

Cheers - Dave
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re: [Flightgear-devel] Manifold pressure

2001-12-14 Thread D Luff

Jon Berndt writes:
 
 It shouldn't be too hard to make MP dependent on throttle position AND whether 
 it is operating or not - plus with some small lag in there. Would that be 
 better than what is there, now?
 

Thats what should be in there now, and is in LaRCsim (well - without 
the lag anyway).  I've obviously thought it went into JSBSim but 
never actually put it in there.

Cheers - Dave
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re: [Flightgear-devel] Manifold pressure

2001-12-13 Thread David Megginson

Frederic Bouvier writes:

  I am wondering why the manifold pressure indicator of the c172 panel is
  changing while moving the throttle knob and the engine is **off** ( 0 RPM ).
  When I do my checklist in my plane, engine off, I verify that this pressure
  is the same as QFE, and during flying, the value is decreasing, not
  increasing.

The engine model is probably just sending out a scaled version of the
throttle position -- we're still working on powerplant output variables.


All the best,


David

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re: [Flightgear-devel] Manifold pressure

2001-12-13 Thread jsb

 The engine model is probably just sending out a scaled version of the
 throttle position -- we're still working on powerplant output variables.

It shouldn't be too hard to make MP dependent on throttle position AND whether 
it is operating or not - plus with some small lag in there. Would that be 
better than what is there, now?

Jon




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