Fox .09 Rocket Acquisition

Scepter flight mentioned 0.11hp for the 09 and I think around 0.23 for the steel fin 15 so I'd say about double the power. Plus the 15 was happy on an 8x4 while 7x3 or 7x4 was about the best the 09 could swing (unless you count the time I drilled a hole in a 12" ruler and bolted THAT to the 09 for a test run). I still have the 15 and recall that I had a devil of a time getting it to start until it was broken in. I did use it on some sort of gifted two channel R/C plane years later using a 9x4 and I'll concur that it was pretty gutless swinging that prop. Duke Fox stated in the instructions that came with the engine that it had "the same sort of power output as a typical washing machine motor" (obviously at different rpm's). I wish I had kept my 09 even though it was pretty well worn out. I was drawn to it as a first engine by its promise of easy starting (actually true) and the fact that the needle valve was a safe distance from the propeller and finally by it's space age appearance in the M.A.N. ad. Boy it sure never looked like THAT out of the box! And disappointed that the included black neoprene fuel line just poked through a hole in the rear of the crankcase casting where the tiny fuel tank was located. Certainly not as refined looking as a Babe Bee.