Re: [Flightgear-devel] autopilots, adverse aileron yaw and jsbsim questions

More on turbulence. At least in the copy of JSBSim.cxx that I have there is this code in "Copy_to_JSBSim": tmp = turbulence_gain->getDoubleValue(); Atmosphere->SetTurbGain(tmp * tmp * 100.0); tmp = turbulence_rate->getDoubleValue(); Atmosphere->SetTurbRate(tmp); There are two gai

Re: [Flightgear-devel] autopilots, adverse aileron yaw and jsbsim questions

> I don't think that's the primary issue ... although there > might be a /secondary/ issue with the kap140 being more > vulnerable to bad handling characteristics than some other > autopilots are; I don't know. I recommend fixing the > flight dynamics first, and only then looking to see what > se

Re: [Flightgear-devel] autopilots, adverse aileron yaw and jsbsim questions

> I helped implement this with Tony a few years ago. As I recall, the > value was from 0 to 1, where 0 represents no turbulence, and 1 > represents the most severe turbulence that we model. You couldn't > represent turbulence simply in feet/second, because it consists of > both movements and rota

Re: [Flightgear-devel] Flight Gear runtime failure

Csaba, Indeed. I have a Radeon X1950 pro. Am I out of luck? Thanks again, Jim Reinsberg Csaba Halász <[EMAIL PROTECTED]> wrote: On 10/8/07, James Reinsberg wrote: > > [EMAIL PROTECTED]:~/applications/FlightGear/source$ fgfs > *** glibc detected *** fgfs: free(): invalid pointer:

Re: [Flightgear-devel] autopilots, adverse aileron yaw and jsbsim questions

On 08/10/2007, Jon S. Berndt <[EMAIL PROTECTED]> wrote: > Does anyone know what typical values are for these two properties: > > /environment/turbulence/magnitude-norm > /environment/turbulence/rate-hz > > The fact that the first property is named magnitude-norm (emphasis on the > *norm*) makes me

Re: [Flightgear-devel] autopilots, adverse aileron yaw and jsbsim questions

On Monday 08 October 2007 02:17, dave perry wrote: > The SenecaII wing rock with light turbulence appears to result from a > very exaggerated adverse aileron yaw. > So I did the same experiment with > the c172p and pa28-140 I agree that they both exhibit unrealistically bad handing characteris

Re: [Flightgear-devel] autopilots, adverse aileron yaw and jsbsim questions

> >> The SenecaII wing rock with light turbulence appears to result from a > >> very exaggerated adverse aileron yaw. So I did the same experiment with > >> the c172p and pa28-140 which both use the kap140. With the default > >> turbulence, the c172p oscillates so bad that you cannot complete the

Re: [Flightgear-devel] autopilots, adverse aileron yaw and jsbsim questions

> I think Jon B. is onto something by asking how turbulence is > implemented in the various fdms. > > Thanks for the ideas, > Dave Does anyone know what typical values are for these two properties: /environment/turbulence/magnitude-norm /environment/turbulence/rate-hz The fact that the first

[Flightgear-devel] Vulcan Livery Patch

Hi All, Please find below a patch for the vulcan to fix the liveries on plib. I'd be grateful if someone would commit it to CVS. Thanks -Stuart Index: vulcanb2-set.xml === RCS file: /var/cvs/FlightGear-0.9/data/Aircraft/vulcanb2/v

Re: [Flightgear-devel] win32 0.9.11 latest binary, where?

Roberto Inzerillo wrote: > Reagan Thomas ha scritto: > >> Vadym Kukhtin wrote: >> >>> 2007/10/6, Thomas <[EMAIL PROTECTED] >: >>> >>> >>> plib (0.9.11pre) version: >>> http://www.rato.us/flightgear/builds/plib/20071005plibexe.zip >>>

Re: [Flightgear-devel] win32 0.9.11 latest binary, where?

Reagan Thomas ha scritto: > Vadym Kukhtin wrote: >> >> 2007/10/6, Thomas <[EMAIL PROTECTED] >: >> >> >> plib (0.9.11pre) version: >> http://www.rato.us/flightgear/builds/plib/20071005plibexe.zip >>

Re: [Flightgear-devel] oil platform...

Hi, A video of Sea Kings starting and landing an a ship: http://pilotservices.streamlinenettrial.co.uk/videos/*Sea_Kings_on_Deck.wmv* this video is not of very good quality, but it's more than worth to see. Maik Robert Black schrieb am 08.10.2007 03:03: > On Wednesday 03 October 2007 19:05, Syd

Re: [Flightgear-devel] win32 0.9.11 latest binary, where?

Vadym Kukhtin wrote: > > > 2007/10/6, Thomas <[EMAIL PROTECTED] >: > > > plib (0.9.11pre) version: > http://www.rato.us/flightgear/builds/plib/20071005plibexe.zip > > > Just in case you'd like

Re: [Flightgear-devel] autopilots, adverse aileron yaw and jsbsim questions

leee wrote: > On Monday 08 October 2007 02:17, dave perry wrote: > >> While optimizing the aitopilot config files for the Century IIB and III >> autopilots for the pa24 and the Altimatic IIIc for the SenecaII, a >> significant difference between the values of parameters (gains in >> particular)

Re: [Flightgear-devel] autopilots, adverse aileron yaw and jsbsim questions

> Is auto-coordination enabled? I don't think this is effective for > YASim > aircraft but it may be complicating things on JSBSim aircraft. Also, > are you > getting the same frame-rates with both aircraft? Last time I ran FG I > found > that the autopilot PID controllers ran at the frame rate

Re: [Flightgear-devel] autopilots, adverse aileron yaw and jsbsim questions

On Monday 08 October 2007 02:17, dave perry wrote: > While optimizing the aitopilot config files for the Century IIB and III > autopilots for the pa24 and the Altimatic IIIc for the SenecaII, a > significant difference between the values of parameters (gains in > particular) that give non oscillato

Re: [Flightgear-devel] win32 0.9.11 latest binary, where?

2007/10/6, Thomas <[EMAIL PROTECTED]>: > > > plib (0.9.11pre) version: > http://www.rato.us/flightgear/builds/plib/20071005plibexe.zip > > Just in case you'd like to try that version: > http://www.rato.us/flightgear/builds/osg/20071005osgexe.zip > > Thanks Thomas for your exe's! But I got this, af

Re: [Flightgear-devel] Flight Gear runtime failure

On 10/8/07, James Reinsberg <[EMAIL PROTECTED]> wrote: > > [EMAIL PROTECTED]:~/applications/FlightGear/source$ fgfs > *** glibc detected *** fgfs: free(): invalid pointer: 0x08746e10 *** > === Backtrace: = > /lib/tls/i686/cmov/libc.so.6[0xb74037cd] > /lib/tls/i686/cmov/libc.so.6(cfree+0

Re: [Flightgear-devel] autopilots, adverse aileron yaw and jsbsim questions

On 07/10/2007, Jon S. Berndt <[EMAIL PROTECTED]> wrote: > I looked at the configuration file for the Seneca II in flightgear cvs. It > appears to me (at least given the quick glance I took) that adverse aileron > yaw (Cnda) is turned off - the data is all zeros. I'm not sure about the exact deriv

Re: [Flightgear-devel] autopilots, adverse aileron yaw and jsbsim questions

> is as solid as a rock with the default turbulence all the way down the > glide slope. With the turbulence zero, both behave the same. > > The SenecaII wing rock with light turbulence appears to result from a > very exaggerated adverse aileron yaw. So I did the same experiment > with the c172p