The Hirth HM 504 is a four-cylinder air-cooled inverted inline engine. The HM 504 was a popular engine for light aircraft of the 1930s-1940s, and it was used to power a number of Germany's trainer aircraft of World War II. The engine featured a cast magnesium alloy crankcase made of Elektron The Hitachi Hatsukaze Model 11 was a Japanese licensed version.

Applications Arado Ar 79 Bücker Bü 131 Bücker Bü 181 BŻ-1 GIL (helicopter) Klemm Kl 35 Matra-Cantinieau MC-101 (helicopter) Morane-Saulnier MS.603 Payen Arbalète Repülőgépgyár Levente II

Specifications (HM 504 A-2)

See also

References

External links Göbler-Hirthmotoren Company website (nothing in there about pre-war engines)