Liquid propellant rocket engine BMW 109-511 WWII

[miraglia]

Does anyone have more information about Liquid rocket engine BMW 109-511 (propellant nitric acid / methanol)
I found something about it in the book
"HISTORY OF GERMAN GUIDED DEVELOPMENT MISSILES."
I need more technical details of it.
thank you

 

[tartle]

How technical?
RAF Cosford has one so might have data as well.

 

[miraglia]

This engine was an option to be used in missile Hs 293.
In the picture above we have the engine HWK 109-507 engine.
See link http://www.walterwerke.co.uk/missiles/109507.htm
The BMW engine is very rare.
Used a self pressurizing piston.
There is a movie in the Imperial War Museum, with testing of this engine.
But how to get this movie? The film is 35 mm.