> explained the Seneca's behavior to me. Perhaps someone who has flown a
> counterrotating twin can weigh in.
The Seneca POH says:
"Counter-rotation of the propellers provides balanced thrust during takeoff
and climb and eliminates the `critical engine` in single engine flight."
Not that much o
Hans Fugal wrote:
> Perhaps someone who has flown a counterrotating twin can weigh in.
Then Torsten is the right person here. Guess who does fly the real-life
counterpart of the Seneca in FlightGear?
Cheers,
Ralf
-
This SF.n
On 8/7/07, Torsten Dreyer <[EMAIL PROTECTED]> wrote:
> Try yourself: Get the P-38L in the air and fly full throttle straight and
> level, open the property-browser for controls/flight. I need a right aileron
> deflection to keep the wings level. If I reduce power to idle, the aircraft
> turns sharp
> > May be i don't understand your remark, and i could be wrong,
> >
> > but all aircraft propeller have not the same rotation direction ,
> > some are CCWon the same aircraft
> > some are CW on others aircraft.
Correct - and some aircraft have both of it: one CW and one CCW.
> >
> > Sure the
> If the rotational rates (returned by the function GetPQR()) are zero -
> that is, at steady state - the angular momentum (vH) parameter will add
> *nothing* to the total moment (vMn). The angular momentum introduces
> gyroscopic effects.
>
> If the effect is too strong, it could be that the Ixx v
> There is a bug in JSBSim causing multiengine aircraft with
> counterrotating props suffer from excessive yaw when engines
> are running. Significant aileron deflection is required to
> fly straight and level.
>
> I tracked down that issue and finally came to FGPropeller.cpp
> line 198:
>
>
On Tue 7 August 2007 18:20, gh.robin wrote:
> On Tue 7 August 2007 17:57, Torsten Dreyer wrote:
> > There is a bug in JSBSim causing multiengine aircraft with
> > counterrotating props suffer from excessive yaw when engines are running.
> > Significant aileron deflection is required to fly straight
On Tue 7 August 2007 17:57, Torsten Dreyer wrote:
> There is a bug in JSBSim causing multiengine aircraft with counterrotating
> props suffer from excessive yaw when engines are running. Significant
> aileron deflection is required to fly straight and level.
>
> I tracked down that issue and finall
There is a bug in JSBSim causing multiengine aircraft with counterrotating
props suffer from excessive yaw when engines are running. Significant aileron
deflection is required to fly straight and level.
I tracked down that issue and finally came to FGPropeller.cpp line 198:
vH(eX) = Ixx*omeg
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