Re: YASim prop discing and turboprop engine

Oleksiy Frolov wrote:
> Would it be possible to overcome this limitation by dynamically
> altering a lift coefficient separatelly for each wing, or in the
> worst case, using the spoilers ?

Not without major surgery, unfortunately.  The Right Thing here would
be to model inter-object effect using a flow field for every object
(lifting surface, fuselage, prop, etc...)  producing aerodynamic force
and use it in a feedback mode to calculate actual airflow at each
point.  That's going to be complicated and slow.

Modifying the wing (or other surface) coefficients directly is
probably not a great idea, as those are generated by and intimately
involved in the solver computation.  You could get the performance
effect you want only by making the solver input numbers a lie.

If you want a special purpose hack (er, "solution") for this aircraft,
one thing you could consider is using a <thruster> object in the wash
area of the wing, pointing it appropriately, and adjusting its
THROTTLE input based on engine power and airspeed using a little
Nasal.  This would still need to be set properly at solution time
(when Nasal is not available), so there's significant complexity.  But
you can make the solution as accurate as you want.

Andy


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