> Hi again :) > > The jsbsim piston engine uses the propeller model for thrust > calculations, so > in and of itself, it can't model exhaust thrust. > > My first though for modeling this extra bit of thrust is to add a pair > of > equations in the <aerodynamics> <drag> and <lift> sections. Perhaps a > table > based on manifold pressure and/or horsepower output? Multiply the drag > section by -cos(alpha) and the lift section by sin(alpha) to get the > thrust > to line up with the aircraft longitudinal body axis. > > Ron
Ron, What's your second thought? Here's one: I'm going to be adding support for specification of arbitrary functions in engine and propeller definitions. I'm thinking that this should permit functions to be specified that would allow a force value to be calculated, then used in the external forces section to apply the force at a particular area. Sound good? It would require the resolution of our property declaration/definition problem. But, that will be resolved. Jon ------------------------------------------------------------------------------ This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev _______________________________________________ Flightgear-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/flightgear-devel
