The AP Engine Yellowjacket .15 R/C Engine is a high-quality 2-stroke nitro engine designed for aeroplanes. With a displacement of 2.5cc, this engine is compatible with various scales and is suitable for hobbyists aged 12 and above. Made with durable materials sourced from China, it features a built-in exhaust system for optimal performance. The engine is compatible with nitro and glow fuel, making it an ideal accessory for RC model vehicle enthusiasts looking to upgrade their aircraft with a reliable and efficient power source.