On Friday 08 December 2006 12:06, Stuart Buchanan wrote: > Hi All, > > I recently bought a flex-wing microlight (aka "trike", "ultralight", > "hang-glider with a lawnmower engine"). Specifically, a Mainair Flash 2 > Alpha. > > There is currently a picture of it here: > > http://www.sites.ecosse.net/graeme.ritchie/eosm/home.asp?txtMenu=forsale > > Obviously, I want model it in FG. However, as flexwings are quite > different from the normal aircraft that we model, I need some advice as to > what FDM to use. > > To give an idea of how flexwings differ from normal aircraft, here are > some details: > - They have single hang-glider style wing, no tail and a very small fixed > "rudder". > - The wing pivots on a point that is pretty close to the center of lift > during all phases of flight, and from which the trike unit hangs during > flight. > - The pilot controls the aircraft by moving the entire wing in the > required direction. The back end of the wing flexes, to help turns. > - The rudder on the wing provides limited yaw control as it is attached to > the wing rather than the trike. > - There is no trimming for different flight phases. Vertical speed is > purely controlled by power. > - My aircraft has a 50HP two-stroke Rotax 503 engine (pull start!) with > reduction gear to reduce maximum RPM form 7000 to approx 4000 on the fixed > prop. > - Typical cruise is 55mph, stall 35mph and Vne 70mph. > - Empty weight is around 200kg, MAUW 390kg. > - Flex-wing flying is very much "seat-of-the-pants" using external visual > references to maneuver the aircraft rather than instruments. > > So, should I use YASim or JSBSim for this project? > > -Stuart
YASim relies upon having an elevator so you'll have to use JSBSim, or possibly UIUC. LeeE ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
