Rahul Sharma (Editor)

BMW IV

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BMW IV

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.

Contents

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. Diemer stated at the time, "I could have gone much higher, but I didn't have enough oxygen."

Applications

  • Arado SC I
  • Albatros L 72
  • DFW F37
  • Heinkel HD 22
  • Heinkel HD 24
  • Junkers A 35
  • Junkers F 13
  • LFG V 59
  • LFG V 60
  • Rohrbach Ro VII Robbe

    • Specifications

    Data from BMW Type IV description and user manual.

    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

  • Power output: Nominal 230 PS, maximum continuous 250 PS
  • Compression ratio: 5.5:1

    • References

    BMW IV Wikipedia
    (Text) CC BY-SA