On 22/02/06, Dave Perry <[EMAIL PROTECTED]> wrote: > I took your advice this evening and tried the 55 knots with 14 degrees. > Yasim did not want to converge at first (insufficient elevator trim) but > after I increased the hstab effectiveness to 2 (was 1.5) it converged. > I also took the hstab incidence to 0 (was 0.6 I believe). The stall > speeds are still correct and the landings are much smoother, more like > the real ac. I also refined the MP gage interpolation as it was off at > the low end such that it made the problem seem worse. 10 on the MP gage > is now 10 in hg in the property list and 15 is now 15, etc.
That's great news. When checking stalls, one gotcha to keep in mind is that our ASI is currently showing calibrated airspeed rather than indicated airspeed, unless someone fixed that during my sabbatical. We need to add an interpolation table for each aircraft between CAS and IAS -- with full flaps in the stall regime, there can be a difference of 6 knots or more between the two. I think you're right about prop drag -- it's something we have to fix for YASim in general, rather than for a specific model. I don't fly with a CS prop normally, but I have twice, and I have also noted that a idle a CS prop spins around 700 rpm, just like a fixed-pitch prop. I'll look forward to the new model. All the best, David -- http://www.megginson.com/ ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid3432&bid#0486&dat1642 _______________________________________________ Flightgear-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/flightgear-devel
