BMW IV

BMW IV
Preserved BMW IVa
Type Inline engine
Manufacturer BMW
First run 1919

The BMW IV was a six-cylinder, water-cooled inline aircraft engine built in Germany in the 1920s. Power was in the 180 kW (250 hp) range. The IV was also produced under license by Junkers as the L2.

World record

On 17 June 1919 Franz Zeno Diemer flew a DFW F37, powered by a BMW IV engine to an unofficial world record height of 9,760 m (32,021 ft) from Oberwiesenfeld, reaching that altitude in 89 min.[1] Diemer stated at the time, "I could have gone much higher, but I didn't have enough oxygen."

Applications

Specifications

Data from BMW Type IV description and user manual.[2]

General characteristics

  • Type: Six-cylinder inline piston engine
  • Bore: 160 mm
  • Stroke: 190 mm
  • Displacement: 23 L
  • Dry weight: 290 kg

Components

  • Valvetrain: Overhead camshaft, two valves per cylinder
  • Cooling system: Water-cooled

Performance

See also

Related lists

References

  1. ↑ "BMW group". Retrieved 27 July 2013.
  2. ↑ bmw-grouparchiv.de Retrieved: 5 December 2016
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