Products / Hirth Engines / 23 Series

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Cutting-Edge Two-Stroke Gasoline & Heavy Fuel Engines for Unmanned Aerial Vehicles

Hirth Engines / 23 Series

23 Series

Air-cooled 50HP two-stroke engines for UAVs of up to 120 kg

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23 Series

The air-cooled 23 Series of two-stroke engines is ideal for UAVs weighing up to 120 kg, delivering 50 HP with an unmatched power-to-weight ratio. It can also provide generator power of up to 250W at 12V.

Engineered to provide superior reliability, the 23 Series offers a 1000-hour TBO and can be equipped with a range of options including dual ignition, fuel injection, an exhaust system, and an electric starter.

Specifications:

Dimensions (L x W x H): 286 x 570 x 338 mm (11.25 x 22.44 x 13.3”)
Weight: 22 kg (48.4 lb) without exhaust
Displacement: 521 cm3 (31.8 cu in)
Stroke: 64 mm (2.52 in)
Bore: 72 mm (2.83 in)
Max Performance: 36.7 kW (50 HP) at 6500 rpm
According to DIN 70020
Max Torque: 53 Nm (38.9 ft. Lb) at 6300 rpm
Generator Power: 250W, 12V

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