HANG-X HX-37 37cc 2-Stroke Petrol Engine

The HANG X HX-37 37cc 2-Stroke Petrol Engine is a compact, lightweight and high-performance engine designed for model aircraft and other suitable applications where a strong power-to-weight ratio is important. With a 37cc single-cylinder, two-stroke design, the HX-37 produces up to 5 HP (3.73 kW) at 9,500 rpm. Its air-cooled construction, carburettor control and straightforward 2-stroke lubrication system make it a practical choice for pilots looking for dependable petrol power in a lightweight package. The HX-37 weighs just 1,165 g for the main engine, while the manufacturer recommends propeller sizes of 19×10, 20×8 and 20×10. The engine uses a 45:1 (2T, FD) oil-to-fuel ratio and has a stated static thrust of 10 kg at 0 m altitude. Key Features 37cc single-cylinder 2-stroke petrol engine Up to 5 HP (3.73 kW) at 9,500 rpm Lightweight 1,165 g main-engine weight Air-cooled design Carburettor-controlled fuel system 9.3:1 compression ratio 6V–14.4V ignition voltage 1,400 rpm idle speed 45:1 (2T, FD) oil ratio Recommended propellers: 19×10, 20×8 and 20×10 10 kg stated static thrust at 0 m altitude Perfect For Large-scale RC model aircraft Petrol-powered model aircraft projects Pilots looking for a lightweight 37cc powerplant Aircraft builds where power-to-weight ratio is important Model aircraft requiring a compact single-cylinder 2-stroke engine Product Summary The HX-37 combines 37cc of displacement with a 5 HP output while keeping the main engine weight to approximately 1.165 kg. Its 2-stroke, air-cooled configuration provides a compact petrol power solution for suitable RC aircraft applications. Specifications Brand: HANG X Model: HX-37 Engine Type: 2-Stroke Petrol Displacement: 37cc Cylinder: Single Cylinder Control: Carburettor Cooling: Air Cooled Bore × Stroke: 38mm × 33mm Compression Ratio: 9.3:1 Ignition Voltage: 6V–14.4V Idle Speed: 1,400 rpm Maximum Performance: 5 HP / 3.73 kW at 9,500 rpm Static Thrust: 10 kg at 0 m altitude Oil Ratio: 45:1 (2T, FD) Main Engine Weight: 1,165 g Recommended Propellers: 19×10, 20×8, 20×10 Why Buy From Probuild Aircraft ✅ Official UK stockist ✅ 100% genuine HANG-X products ✅ Trusted by top international pilots ✅ Fast UK shipping ✅ Trusted by RC pilots since 1993