I'd like to know what you guys think about 20-25 size engines that are currently available.
Before everybody jumps in with a recommendation too soon, here is what I'm looking for:
light weight good fuel economy good power-to-weight ratio
I am a big fan of the OS FP 20 and 25 engines for precisely these reasons. I know a lot of guys don't like them because they are "trainer" engines, but they actually have a very good power to weight ratio because they do not have the added weight of ball bearings. Not only that, but their fuel economy is excellent.
My stash of FPs is gradually wearing out, so now I'm looking for something new. I had the pleasure of running a new MDS 18 the other day, and it was great, although I suspect that it eats a lot of fuel, judging from the mess on the side of the plane after 5 minutes. I've also been impressed with the K&B 28 when I ran one a few years ago. Are they still in production?
Anyway, I know I will not likely find an engine with the same power-to-weight ratio and incredibly good fuel economy as an FP, but I'd like to know what you guys think. Except for an 061 last week I haven't bought a brand new two stroke engine in 10 years, and now I'm looking for something good to put on a New Era that I am going to build.
Robbie