On Saturday 29 April 2006 07:57 am, Jon S. Berndt wrote: > It seems that in the pitch channel for the A-4 the pilot commands normal > acceleration. The Az error is computed, and that is differenced with pitch > rate. That error drives the elevator. See the A-4 section here:
Yes, I just now found the link page at the JSBSim site :( I guess I haven't been paying attention. Anyway, yes it looks like there was some extra damping. I just used aeromatic to generate an A-4 model, then went through and changed the pitch stability derivatives to match those in the Teper paper. I'll work more on it later, but right now I just wanted a model that puts Teper's "official" numbers into the pitch calcs. A short test flight shows an airplane with very light pitch damping, as one would expect. Dave ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
