BMW tipjet helicopter

[Wurger]

While reading "History of German Guided Missiles Development" I came across a reference by Baron Von Zborowsky himself on a wartime helicopter project to lift such heavy loads as tanks up to a 100kms at 100km/h. It would use rocket engines attached to the rotor blade tips. Does anyone know more? Perhaps the book "La SNECMA, von Zborowski et le Coleoptere" has some hints?

 

[hesham]

While reading "History of German Guided Missiles Development" I came across a reference by Baron Von Zborowsky himself on a wartime helicopter project to lift such heavy loads as tanks up to a 100kms at 100km/h. It would use rocket engines attached to the rotor blade tips. Does anyone know more? Perhaps the book "La SNECMA, von Zborowski et le Coleoptere" has some hints?

I think that,there's nothing in this book about it.

 

[Steve Coates]

Interestingly Reiniger claimed the primacy of his work and wrote this in a letter to me d/d 7/11/1980 (which makes me feel rather old):

Only after Mr. Zborowski conceived the “Coleopter” in a similar way in 1954/55 in France did these earlier works become of interest again from a patent-law perspective and because of licensing interests, including for the Ministry of Defense, which wanted to or had already financially supported the development of the Coleopter. There were lengthy patent disputes. It would go too far to go into detail here. In any case, the German Patent Office recognized the priority of our earlier work.

I'm afraid I don't have any additional detail on that aspect of things.

 

[Wurger]

Interestingly Reiniger claimed the primacy of his work and wrote this in a letter to me d/d 7/11/1980 (which makes me feel rather old):

Only after Mr. Zborowski conceived the “Coleopter” in a similar way in 1954/55 in France did these earlier works become of interest again from a patent-law perspective and because of licensing interests, including for the Ministry of Defense, which wanted to or had already financially supported the development of the Coleopter. There were lengthy patent disputes. It would go too far to go into detail here. In any case, the German Patent Office recognized the priority of our earlier work.

I'm afraid I don't have any additional detail on that aspect of things.

Thanks for sharing, Steve.