ORIGINAL: jagnweiner
Sarge-
If you didn't already reach this conclusion on your own (which you probably did), you REALLY don't want a wankel rotary engine on your LT-25. 1) It is prohibitively expensive, 2) they drink way too much fuel for the power they put out, 3) I've heard they're pretty heavy, and 4) I believe they are a little difficult to keep running. Basically, they're kind of a novelty that has been around for at least 25 years, but are not really practical.
Not trying to start an argument about the OS Wankel, but from the reading I've done, I'd only agree with #1. The people who own them report that their power, weight, and fuel consumption are similar to a .40 size. The biggest issue I've heard about is keeping them cool, especially the original version. I do agree with your conclusion, at $340, they're not particularly practical, certainly not on a trainer aircraft.
I've had good luck with my OS FS-30.