This vintage HP Hirtenberger 40 F-RC nitro/glow model airplane engine is a rare find for collectors and hobbyists alike. Made in Austria, it is a 2-stroke engine that is compatible with airplanes and runs on nitro and glow fuel. It is suitable for scales 1:4, 1:5, and 1:6, making it a versatile addition to your collection. This engine is in used condition, but has been well-maintained and is fully functional. It has an age level of 17 years and up, making it suitable for experienced users. The brand, Hirtenberger, is highly regarded in the RC model vehicle community, and this engine is sure to impress.