Article · Wikipedia archive · Last revised Jul 18, 2026

Hirth F-263

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.

Last revised
Jul 18, 2026
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≈ 1 min
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Hirth F-263
TypeTwin cylinder two-stroke aircraft engine
National originGermany
ManufacturerHirth

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

Specifications (F-263)

Data from Cliche1

General characteristics

  • Type: Twin-cylinder, two-stroke, aircraft engine
  • Displacement: 383 cc (23.4 cu in)
  • Dry weight: 70 lb (31.8 kg)

Components

Performance

  • Power output: 30 hp (22 kW)
See also

See also

References

References

  1. Cliche, Andre: Ultralight Aircraft Shopper's Guide 8th Edition, page G-3 Cybair Limited Publishing, 2001. ISBN 0-9680628-1-4
  2. "Ultralight/Microlight aircraft specs USA". www.ultralighthomepage.com. n.d. Retrieved 16 December 2009.
  3. Fraser, Richard (2009). "Phillipe Balligand and his HM293". Retrieved 16 December 2009.