Sorry guys, I don’t remember any of the FMS models being that close to the SIG LT-40. I used to fly FMS a lot. I built the PIC interface, the whole nine yards. I have tried quite a few of the FMS models. Don’t get me wrong, I like FMS. I think it is great practice regardless of how close the model is. Most of the “high wing trainer” types of planes in FMS have too much dihedral effect. That is, the simulated planes return to level flight much too quickly. Even though the LT-40 has a lot of dihedral, the self correction is less pronounced. Also, I never really liked the way the planes landed in FMS. These are really just nit picks since FMS is an absolutely amazing program - even more amazing that it is free.
I have a SIG LT-40 with and O.S. 46FX and I fly it all the time. I ended up getting RealFlight G2, so I put more effort into getting an LT-40 model for G2. Both FMS and G2 helped me a lot in getting soloed.
I currently use an LT-40 model for G2 and it is extremely close to the actual plane. For those interested see the Unofficial G2 Swap Page (
http://zeus.rcwizard.com/fubar_hill/G2.htm). Over the last few months I have found that the frontal area needs to be reduced a bit in the G2 model. I’m new to the hobby, but I do have about 70 flights on my LT-40 so I am pretty familiar with the way the LT-40 flys. For everything aside from ground handling, the G2 model is effectively identical to the real plane.
For an LT-40 model in FMS, I think you will need modify an existing FMS model. Take a look at the RC-Sim.de site (in German but you can get to the download area easy enough):
http://www.rc-sim.de/index1.htm
See the download section under “Flugzeuge” - 16 download pages. This site has hundreds of FMS planes you can download. Download a few of the high wing trainer types of planes.
There is also a program call Par Designer that helps in editing FMS “.par” files so that you can modify the characteristics of FMS models. See:
http://www.interq.or.jp/sun/cyber/fm...s_GeoEX_e.html
You can add ailerons to models that only have rudder control, increase control throws, add power, adjust dihedral effect and the like. This will help you set-up the model to fly more to like the LT-40.
My LT-40 has a pretty slow roll rate, one revolution in about 1.5 seconds. So … I would just reduce the dihedral affect, adjust the roll rate and you’re in business. If I get a chance, I will hook up the buddy box, fire up FMS and see if I can give you more specific suggestions.
See also this link to some FMS planes (most of these models overlap with the planes on the RC-Sim.de site):
http://www.interq.or.jp/sun/cyber/fms_aircraft_e.html
Good luck,
Moses