Thought so. I have an American R/C Mantis that I bought back in the 70's and only partially completed. I keep thinking I want to complete it, and I know the stock parts are no longer available, but I would think there are enough parts out there for different helis that something would fit it, maybe even improve it. I've read that it wasn't the best machine out there, but I think I recall reading that it was an improved version of the Revolution. Is that correct? If nothing else, I want to complete it just to say I did.