Martin Spott > syd & sandy wrote: > > > I've been able to get out of /most/ stalls and spins, given > > enough altitude, but it's vital to ensure that the trims are > > centered, which is not likely to be the case if you've been > > using an autopilot. > > I see. Yesterday I took several YASim aircraft for a test and noticed > that the effect _I_ mean is indeed unique to the b1900d. There's an > 'indicator' that you can easily reproduce during take-off: > > When you accelerate with the elevator pulled back to the maximum, > almost every aircraft I know (from real or simulation) rotates early, > stays level and gets into the air after a while. The b1900d will never > lift both main wheels from the ground but instead will tumble to the > left or right, absolutely uncontrollable. If you try to correct the > bank using the ailerons it will tumble to the other side but you won't > manage to hold it level (unless you push the elevator). > > I don't think this would happen with the real aircraft and I think as > well that the cause for this behaviour is the same that makes stall > recovery with the b1900d so difficult.
Hmmm, this behaviour is consistent with the wing stall angle being (far) too small - the wing is stalled on the ground. Having the twist angle greater than the incidence won't help either. If you want to try, change the wing stall angle in the YASim config file to 17.5, and you will get a perfectly well behaved aircraft. (Or I have here, anyway). Vivian ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid0944&bid$1720&dat1642 _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
