> Hi Jon, > > Thanks for the heads-up. As a newbie aircraft designer I am coming > close to needing some automatic flight control systems for my F-4E > model. For example, flaps and slats deploying when airspeed is less > than 230 kcas with the gear down. Slats deploying anytime alpha exceeds > 10 degrees... > > Is there a working example of doing this the 'right way'? Is there some > documentation I haven't found yet? Perhaps > http://jsbsim.sourceforge.net/AutomaticFlightInJSBSim.pdf ?
This document is old and outdated. It shouldn't be too hard for me to update it, though, which I really should do. What you describe above can certainly be done. I implemented the X-15 SAS. You can see that in the X14.xml file. In the JSBSim source distribution there is also a C172ap.xml file that represents a heading hold, altitude hold, and wing leveler autopilot. Essentially, there are several building blocks you can assemble: filters, switches, gains, summers, etc. to process inputs from the pilot or from "sensors". Sensors can be either "perfect" (environment values such as alpha, density, or qbar, taken right from the equations of motion or math models) or simulated (with biases, drifting, failure modes, noise, quantization, etc.). See the most recent few JSBSim newsletters at www.jsbsim.org. Jon ------------------------------------------------------- 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&kid=110944&bid=241720&dat=121642 _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
