The Testors/McCoy engine shown in the pictures sprung from the old Wen-Mac line of engines.

In 1969, I bought a Testor's Skyhawk RTF (ready-to-fly) single channel R/C model. It was powered by a metal crankcase version of this engine. I was a little leary of the engine when I bought it because of all of my previous Wen-Mac experiences. The latest experiences were pleasant, but all of those years of messing with the miserable versions of Wen-Mac engines tainted my perceptions and biased me against this latest engine. It turned out that there was no reason to worry, as long as you used Cox fuel. Other sport fuels, like that burned in my OS .58 and .35 S/RC engines, did not have the punch that the little .049 engine required. That little Testors engine just got better and better as we flew the dickens out of it during the Spring, all Summer and well into early Winter before giving it to a good friend.


Ed Cregger