---------- Forwarded message ---------- From: John Clary <[EMAIL PROTECTED]> Date: Oct 27, 2006 11:03 AM Subject: Which FDM to use with a fixed wing VTOL? To: FlightGear user discussions <[email protected]>
I'm trying to model an interesting VTOL, just for "funsies", but I don't know which FG FDM to use. The VTOL is a "4 poster" configuration like the Moser AirCar, only bigger and more efficient, and also capable of gliding to a rolling landing in an engine-out emergency. There are 3 issues that the flight model needs to handle, besides the fact it has fixed wings and can glide. 1. The lift generators are also the horizontal propulsion, and the lift generated varies with the amount of horizontal thrust generated, but not in a linear fashion. 2. The lift generators are fixed to the fuselage and the vertical and horizontal components of lift/thrust are also fixed to those axes of the fuselage. Since lift/thrust are not linear the fuse angle to hover changes depending on gross weight. 3. The attitude control for pitch, roll, and yaw are simple movable vanes in the airflow behind the lift pods, which means the control authority is also a variable of the amount of horizontal thrust developed. -- Opus My gas is up to $.99 a burrito, $5.99 for premium, and I'm only getting 20 miles to the regular burrito. -- Opus My gas is up to $.99 a burrito, $5.99 for premium, and I'm only getting 20 miles to the regular burrito. ------------------------------------------------------------------------- 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-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/flightgear-users
