Harman Patil

Hirth HM 60

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Hirth HM 60

The Hirth HM 60 was a four-cylinder inverted air-cooled inline aircraft engine designed in 1923 and first sold in 1924. The engine was of very high quality, and its sales success contributed to Hirth's rapid pre-war expansion. It was a popular engine for light aircraft delivering 80 hp (60 kW) at 2,300 rpm. Later Hirth engines built upon the HM 60's success and provided greater power with many of the same design features.

Contents

Variants

HM60
HM60R
HM60R2

Applications

  • Fieseler Fi 5
  • Göppingen Gö 9
  • Klemm Kl 25
  • Klemm Kl 35
  • Klemm Kl 107
  • Shackleton-Murray SM.1
  • WNF Wn 16
  • General characteristics

  • Type: 4-cylinder air-cooled inverted inline engine.
  • Bore: 102 mm (4 in)
  • Stroke: 110 mm (4.33 in)
  • Displacement: 3.6 L (220 cu in)
  • Length: 856 mm (33.7 in)
  • Width: 391 mm (15.4 in)
  • Height: 688 mm (27.1 in)
  • Dry weight: 97 kg (214 lb)
  • Components

  • Valvetrain: 1 inlet and 1 exhaust valve per cylinder.
  • Fuel system: Carburetor
  • Fuel type: 74 octane
  • Cooling system: Air-cooled
  • Performance

  • Power output: 80 hp (60 kW) at 2,400 rpm
  • Compression ratio: 5.8:1
  • Power-to-weight ratio: 507 W/kg (0.3 hp/lb) at cruise speed
  • References

    Hirth HM 60 Wikipedia


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