On Thu 14 June 2007 19:37, Nick Warne wrote: > Hi Gérard, > > On Thursday 14 June 2007 12:01:25 gh.robin wrote: > > Hello, everybody > > > > those who knows my URL http://perso.orange.fr/GRTux/ > > have noticed a lot of model, which are not longer available. > > I made these Aircraft some years ago , they where flying with FG 0.9.8. > > They were built mainly to answer some friends request. > > > > I am going to make these aircraft to be GPL, and FG 0.9.11 and FG OSG cvs > > flyable. > > > > They will be delivered i hpe during the next 4 months. > > > > The first one , is the BlackBird SR-71 available here > > > > http://perso.orange.fr/GRTux/SR71-BlackBird.tar.gz > > Using OSG cvs version, updated yesterday. > > I got from CVS - great model, but I seem to have an issue. After taking > off, I can fly with full throttle and slowly climb - but if I knock back > throttle I seem to loose everything, and the aircraft just slows down and > gently drops to earth in the horizontal postion (i.e. it doesn't crash, > just floats down like a feather). > > I see this in the console: > > Trim Failed > > Trim Results: > Angle of Attack: 7.50 wdot: 3.21e+01 Tolerance: 1e-03 Failed > Throttle: 0.50 udot: 3.05e+00 Tolerance: 1e-03 Failed > Pitch Trim: 0.00 qdot: 4.37e-03 Tolerance: 1e-04 Failed > Failed to get Mach number for given Vc and altitude, Vc unchanged. > Please mail the set of initial conditions used to [EMAIL PROTECTED] > Model Author: Author Name > Creation Date: 2005-24-06 > Version: 0.1 > Description: Models a SR-71 > Failed to get Mach number for given Vc and altitude, Vc unchanged. > Please mail the set of initial conditions used to [EMAIL PROTECTED] > > Regards, > > Nick > Nick,
Yes i noticed that problem, with that FDM the power after take off (i tested it on a low altitude KSFO) at 2 deg pitch must not be less than 80% of rpm and must be less than 300 kts. Only full throttle and from 15 to 20 deg pitch gives the right power to get altitude, 10000 ft and more. I don't mean that is right, i only mean we have a lot of work to do before to get the right FDM. Thanks for your feed back. -- Gérard ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
