Check the listing for details. Fox .25 RC Model Airplane Engine *FOR PARTS*. Condition: Used. Listed at 34.95 USD. The Fox .25 RC Model Airplane Engine is a 2-stroke engine designed for airplanes, featuring a displacement of 3.5ccm. Made by Fox Manufacturing, this engine is compatible with universal brands and suitable for vehicles aged 17 years and up. It runs on nitro & glow fuel, providing power and performance for your RC model airplane. Please note that this listing is for the Fox .25 engine for parts, offering a reliable and high-quality option for your hobbyist needs.