The Cox Golden Bee .049 model airplane engine is a vintage 2-stroke engine designed for use in airplanes. It is compatible with nitro and glow fuel and was manufactured in the United States.  This, along with multiple other model airplane parts, was given to me by my uncle recently, and unfortunately, I am not familiar enough with model airplanes to test it. But if you have any questions, I am happy to ask him for any additional details.