Re: [Flightgear-devel] Aircraft perturbed by visibility controls.

2004-06-09 Thread Curtis L. Olson
David Megginson wrote: David Culp wrote: The effect looks very exaggerated, probably because it happens too quickly. On the contrary -- we interpolate smoothly between layers, I think, so the wind changes fairly gradually. Real wind shear can be much more dramatic. Right ... but since we ofte

Re: [Flightgear-devel] Aircraft perturbed by visibility controls.

2004-06-09 Thread David Megginson
David Culp wrote: The effect looks very exaggerated, probably because it happens too quickly. On the contrary -- we interpolate smoothly between layers, I think, so the wind changes fairly gradually. Real wind shear can be much more dramatic. All the best, David _

Re: [Flightgear-devel] Aircraft perturbed by visibility controls.

2004-06-09 Thread Curtis L. Olson
Andy Ross wrote: David Culp wrote: > There have been reports of "rudder kick" when climbing through > atmosphere layers, which might be the same problem you're > seeing. I don't think it was ever resolved though. I didn't think it was a bug. That's just wind shear, isn't it? I always wondered wh

Re: [Flightgear-devel] Aircraft perturbed by visibility controls.

2004-06-09 Thread David Culp
> There have been reports of "rudder kick" when climbing through > > atmosphere layers, which might be the same problem you're > > seeing. I don't think it was ever resolved though. > > I didn't think it was a bug. That's just wind shear, isn't it? The effect looks very exaggerated, probabl

Re: [Flightgear-devel] Aircraft perturbed by visibility controls.

2004-06-09 Thread Josh Babcock
Curtis L. Olson wrote: Ed Sirett wrote: I have been lurking on this list for a while but now I have something to report. Fly just about any JSBsim or Yasim model (not UFO or UINC) get the plane level, straight and stable with or without the AP. AFAI can tell it happens on all JSB and YASIM models t

Re: [Flightgear-devel] Aircraft perturbed by visibility controls.

2004-06-09 Thread Andy Ross
David Culp wrote: > There have been reports of "rudder kick" when climbing through > atmosphere layers, which might be the same problem you're > seeing. I don't think it was ever resolved though. I didn't think it was a bug. That's just wind shear, isn't it? Andy _

Re: [Flightgear-devel] Aircraft perturbed by visibility controls.

2004-06-09 Thread Erik Hofman
Ed Sirett wrote: I have been lurking on this list for a while but now I have something to report. Fly just about any JSBsim or Yasim model (not UFO or UINC) get the plane level, straight and stable with or without the AP. AFAI can tell it happens on all JSB and YASIM models that you can get airbo

Re: [Flightgear-devel] Aircraft perturbed by visibility controls.

2004-06-09 Thread Curtis L. Olson
Ed Sirett wrote: I have been lurking on this list for a while but now I have something to report. Fly just about any JSBsim or Yasim model (not UFO or UINC) get the plane level, straight and stable with or without the AP. AFAI can tell it happens on all JSB and YASIM models that you can get airbo

Re: [Flightgear-devel] Aircraft perturbed by visibility controls.

2004-06-09 Thread David Culp
> I have been lurking on this list for a while but now I have something to > report. > > Fly just about any JSBsim or Yasim model (not UFO or UINC) get the plane > level, straight and stable with or without the AP. > AFAI can tell it happens on all JSB and YASIM models that you can get > airborne.