I agree with Glen-- the Tower .46 is a maligned motor. I flew one in my 1st trainer and never had a minute's problem with it, never deadsticked on me, except when I ran it out of fuel (my bad). It liked to load up if idled a while, but I never really messed with the low end after the initial setup. I liked the engine a lot. It outlasted the plane it was in-- I mid-aired my SIG Kadet MkII that it was in with a 1/4 scale Cub and his 20 inch prop and gas engine throroughly Cuisinarted my plane, but the engine is fine. Can't beat it for the price for a beginning engine.