The Hirth F-263 is a twin-cylinder, in-line, two-stroke, carburetted aircraft engine that was designed for use on ultralight aircraft. It was manufactured by Hirth of Germany, but was discontinued about 2001.^[1]

Development

The F-263 uses fan cooling and piston-ported induction, with a single Bing carburetor and single capacitor discharge ignition. The cylinder walls are electrochemically coated with Nikasil. Standard starting is recoil start. A gearbox reduction drive system and electric start were factory options.^[1]

The engine produces 31 hp (23 kW) and runs on a 50:1 pre-mix of unleaded 93 octane auto fuel and oil. Recommended time between overhauls is 1000 hours.^[1]

Applications

• Howland H-3 Pegasus^[2]
• Falconar HM-293^[3]

Specifications (F-263)

Data from Cliche^[1]

See also

• Arrow 250
• Kawasaki 440

References