Hirth HM 506 explained

The Hirth HM 506 was a six-cylinder air-cooled inverted inline engine that was developed from the earlier four-cylinder HM 504.^[1] 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.

Applications

• Bücker Bü 133 A
• Fieseler Fi 99
• Fieseler Fi 157 (UAV prototype)
• Fieseler Fi 158 (UAV prototype)
• Gotha Go 241
• Klemm Kl 35 B (D-ERLQ)

External links

• Göbler-Hirthmotoren Company website no historical section
• no access - for sale of Hirth Flugmotoren manuals

Notes and References

1. Book: Gunston, Bill . World Encyclopaedia of Aero Engines . 1989 . Patrick Stephens Limited . Cambridge, England . 978-1-85260-163-8 . 2nd . 77.