Originally Posted by harriermate

Hi Guys,
Im resurrecting the build of my Flair Stearman which has been resting in the attic for 'a few' years now but nearly complete. I am toying with the idea of powering it with a UMS 90cc 7 cylinder radial (would have loved a robart radial when they were available!). As the aircraft should fly happily on a single cylinder Saito 180 (which I have already), Im concerned that I might be putting too much power and weight up front for the sake of mounting a scale diameter (9.75 inches) radial.

Any thoughts and advice gratefully received.

Harriermate