Re: [Flightgear-devel] Improving the elevator modeling

2011-03-31 Thread Jon S. Berndt
Forwarded to the JSBSim-devel list. Jon On Wed, Mar 30, 2011 at 11:05 AM, wrote: >> Hi, >> >>... >> >> The only parts lacking in the JSBSim as best as I can determine are some >> numbers to define the elevator aero coefficents, hinge moments as a >> function of tail alpha and def

Re: [Flightgear-devel] Improving the elevator modeling

2011-03-30 Thread Leonardo Fabian Grodek
On Wed, Mar 30, 2011 at 11:05 AM, wrote: > >> Hi, > >> > >>... > >> > >> The only parts lacking in the JSBSim as best as I can determine are some > >> numbers to define the elevator aero coefficents, hinge moments as a > >> function of tail alpha and deflection, and changes in the aspect ratio >

Re: [Flightgear-devel] Improving the elevator modeling

2011-03-30 Thread castle
>> Hi, >> >>... >> >> The only parts lacking in the JSBSim as best as I can determine are some >> numbers to define the elevator aero coefficents, hinge moments as a >> function of tail alpha and deflection, and changes in the aspect ratio >> of the wing as a function of flap deflections that will

Re: [Flightgear-devel] Improving the elevator modeling

2011-03-30 Thread Jon S. Berndt
> Hi, > >... > > The only parts lacking in the JSBSim as best as I can determine are some > numbers to define the elevator aero coefficents, hinge moments as a > function of tail alpha and deflection, and changes in the aspect ratio > of the wing as a function of flap deflections that will be used

[Flightgear-devel] Improving the elevator modeling

2011-03-29 Thread castle
Hi, whether for a reversible or irreversible elevator control system, the current model needs some improvements, as in: 1) calculation of the "local" alpha at the elevator due to downwash effects of the wing/body, 2) determination of the elevator float angle for a "free stick" condition, and, 3