Erik Hofman writes: > Yeah, but the windtunnel or flight-test data woudl include the > individual coefficients in one single value. This means that if there is > data for -180 ... +180 degree AOA and Yaw JSBSim (and UIUC) woudl be > more accurate compared to YASim.
Not really, because there is a potentially infinite number of intereactions among different surfaces, and using aircraft-wide coefficients forces oversimplication, no matter how good the incoming data. Generally, the simplifications are subtle enough that we don't notice them, but in the end, traditional coefficient-based engines are faking it just as much as YASim is -- they just generally have more complete data to start with. All the best, David -- David Megginson, [EMAIL PROTECTED], http://www.megginson.com/ _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
