Walter HWK 109-509

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HWK 509
HWK 109-509A on display at the Luftwaffenmuseum, Berlin-Gatow, Germany
Type	Rocket engine
Manufacturer	Hellmuth Walter Kommanditgesellschaft
First run	1943
Major applications	Messerschmitt Me 163 Bachem Ba 349

The Walter HWK 109-509 was a German liquid-fuel bipropellant rocket engine that powered the Messerschmitt Me 163 Komet and Bachem Ba 349 aircraft. It was produced by Hellmuth Walter Kommanditgesellschaft (HWK) commencing in 1943, with licensed production by the Heinkel firm's facilities in Jenbach, Austria.