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I have no experience with your particular engine, so Kweasel may be right. He usually is.

I flew competition fun fly models some years ago. Locally, the hottest flyer (Halverson) was flying an OS .32F-H ringed engine. After watching his efforts and the effort of others, the choice came down to either this engine or a Webra .32 GT or Speed, I forget which.

The Webra was in stock nowhere, so I bought the OS heli engine. We were running 11x4 Rev-Up props when we could find them, which represents a hefty load for a little .32.

My OS powered my Florio Stunt Wagon first and then lighter models later. It was one of the best airplane engines that I have ever owned. It laughed at the extra heat generated by performing multiple high stress maneuvers. Other folks using conventional airplane engines would sometimes have problems with overheating. Not the OS heli engine.

So, at least in this application, the heli engine actually provided an advantage. I also sport flew the engine and never had a problem relating to the extra heat dissipation capacity of the heli head. It performed as a normal airplane engine would perform.

Are the engines set up differently today for more nitro? I don't know. They were using pretty heft amounts of nitro back then too. Personally, I don't think you will have any problems with using this engine in an airplane.


Ed Cregger