The Sadler R1765U Radial Engine

[Rando]

Does anyone know anything about this radial engine?

http://www.constant-pressure.com/sadler.htm

[KenSandyEggo]

I think that this is one of those engines that is displayed at Oshkosh year after year after year. It still appears to be a work in progress, but looks good on paper if you can get by with that H.P.