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.
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 from Oberwiesenfeld, reaching that altitude in 89 minutes. 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 Albatros L 74 Caspar C 27 DFW F37 Heinkel HD 22 Heinkel HD 24 Heinkel HD 39 Junkers A 35 Junkers F 13 LFG V 59 LFG V 60 Polikarpov R-1 BMW (Soviet unlicensed copy of Airco DH.9A) Kalinin K-Series Rohrbach Ro VII Robbe Rohrbach Ro VIII Roland I Type 91 Heavy Tank Type 95 Heavy Tank
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