Hirth F-36

The Hirth F-36 is a single-cylinder, two-stroke, carburetted aircraft engine designed for use on ultralight aircraft, especially powered paragliders and ultralight trikes. It is noted for its extremely small equipped weight of 28 lb (13 kg) including exhaust system, reduction drive and carburetor.[1]

Hirth F-36
Type Single-cylinder two-stroke aircraft engine
National origin Germany
Manufacturer Hirth

The F-36 was formerly known as the Solo 210, before the design was purchased by Hirth.[2][3]

Development

The engine uses free air cooling, single capacitor discharge ignition, with a single integral pump-type carburetor. The cylinder walls are electrochemically coated with Nikasil. Standard starting is recoil start with electric start optional. A quadruple V belt reduction drive system is an option with ratios of 1.8:1, 2.0:1 or 2.5:1.[1]

The engine runs on a 50:1 pre-mix of unleaded 93 octane auto fuel and oil and produces 15 hp (11 kW) at 6000 rpm.[1]

Applications

Specifications (F-36)

Data from Recreational Power Engineering[1]

General characteristics

  • Type: Single cylinder, two-stroke, aircraft engine
  • Bore: 70 mm (2.8 in)
  • Stroke: 54 mm (2.1 in)
  • Displacement: 208 cc (12.7 cu in)
  • Length: 275 mm (10.8 in)
  • Width: 359 mm (14.1 in)
  • Height: 341 mm (13.4 in)
  • Dry weight: 28 lb (12.7 kg) with reduction drive, exhaust system and recoil start

Components

  • Fuel system: 1 X integral pumper carburetor
  • Fuel type: Minimum of unleaded 93 octane auto fuel
  • Oil system: 50:1 fuel/oil premix
  • Cooling system: free air
  • Reduction gear: four element cog belt with ratios of 1.8:1, 2.0:1 or 2.5:1 available

Performance

References
  1. Recreational Power Engineering. "F-36 2 cycle 15hp". Retrieved 17 January 2012.
  2. Moody, John K. (2002). "Current EasyRiser Info". Retrieved 2009-12-20.
  3. Cured Composites. "Hang Buggy". Archived from the original on 2010-04-06. Retrieved 2009-12-20.
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