Originally Posted by
vertical grimmace
One thing soft mounting does for sure is reduce power. A rigidly mounted engine just has more, period. I learned this in all of my years pylon racing. You can bet, you will never see a racing plane with a soft mount. Soft mounting on aerobat's is done mainly to reduce noise, which are the types of planes MTK sets up and flies. Which is understandable, but it depends on your application.
Years ago we used to run larger one design 82" spanned racers with engines up to 2.2 cu.in glow, Mokis MDS' etc.. I built mine lightly (12# compared to 16+ of every one else's) and mounted the Moki 180 on the only soft mounted set-up at those meets. The lightness of the crate and adequate power of the 180 produced some very fast results, usually the fastest at those meets. Of course the quietness was terrific, some 10 dB lower than most
I have never run F1, Formula 500 or other F3D types tho so I don't know about the smaller crates.