You'll have unlimited vertical and could probably hover a 20 lb plane...

Sounds like you are considering the New TopFlight ARF P-51 but either way...

These engines will ROCK the P-51... awesome power for some really fast, hi-speed passes... HUGE loops, etc... These engines out out close to 35# of thrust!

Not that it matters, but you WILL be adding some nose weight with these engines, but it doesn't matter... they are strong and light, the weight is to offset how light they are...


Biggest thing to watch for is how wide they are with muffler attached... the cowl of a TopFlight GIant P-51 is 6.5" wide...

A U.S. 41 fits inside just barely because of it's rear exhaust (even then the velocity stack will stick out)