Hirth HM 506

HM 506
Type	Inline piston engine
National origin	Germany
Manufacturer	Hirth Motoren GmbH
Major applications	Bücker Bü 133

The Hirth HM 506 was a six-cylinder air-cooled inverted inline engine that was developed from the earlier four-cylinder HM 504. The HM 506 was a popular engine for light aircraft of the 1930s to 1940s and powered the Bücker Bü 133A model trainer. The engine featured a cast magnesium alloy crankcase.

Data from Grey 1972, p. 60d-61d

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