Otto Reder 1943 helicopter

[Stingray]

Apparently there was an intermeshing-rotor helicopter designed by Otto Reder in 1943. Does anyone know more about it?

http://stingraysrotorforum.activeboard.com/t48686235/otto-reder-helicopter/

 

[hesham]

Apparently there was an intermeshing-rotor helicopter designed by Otto Reder in 1943. Does anyone know more about it?

http://stingraysrotorforum.activeboard.com/t48686235/otto-reder-helicopter/

The Drawing from the same souce.

 

[Steve Coates]

Apologies for late response to the thread. Drawing clearly lifted from my book.

It dates to June 1943 and was almost certainly a 'private' design by Reder, although it's clearly designed to move beyond the preceived weakness of the Fa 330, its unpowered motorisation. It is not clear if it was shown to Flettner, his then employer, who was in any case struggling to meet the RLM orders he had in hand. Reder moved on from Flettner in November 1943 to Ruhrstahl AG where he worked on the X-4 air-to-air missile.

The drawing turned up in the Nachlass his daughter deposited with the Deutsches Museum following his death.

 

[Rosebud43]

Apologies for late response to the thread. Drawing clearly lifted from my book.

It dates to June 1943 and was almost certainly a 'private' design by Reder, although it's clearly designed to move beyond the preceived weakness of the Fa 330, its unpowered motorisation. It is not clear if it was shown to Flettner, his then employer, who was in any case struggling to meet the RLM orders he had in hand. Reder moved on from Flettner in November 1943 to Ruhrstahl AG where he worked on the X-4 air-to-air missile.

The drawing turned up in the Nachlass his daughter deposited with the Deutsches Museum following his death.

Thank you for sharing your research about my grandfather Otto Reder. Do you have any further information about his position or results at Ruhrstahl AG? Kind regards Dr. Mathias Rosenbaum

 

[Steve Coates]

Mathias

You are more than welcome to contact me and I am happy to make my odd bits and pieces on Reder available to you.

Reder's position with Ruhrstahl AG is described as Versuchsleiter in an Allied post-war 'Available Personalities' list.

There is a single page handwritten document of his movements in 1945 which is held in his Nachlass at the Deutsches Museum. You are welcome to sight of a copy of my (admittedly not great) photo of this. As I mentioned above the Nachlass was deposited with the Deutsches Museum by his daughter, Ingrid Rosenbaum who I presume is your mother. I exchanged some correspondence with her in the early 1990s.

Steve