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Old 10-28-2012, 03:59 PM
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Default Rotating Wing Activities in Germany during the period 1939-1945

The following are two ‘pdf’ files on Rotating Wing Activities in Germany during the period 1939-1945.

They may provide information of interest on specific early gyrocopters and helicopters for some.

http://www.unicopter.com/German Rotating Wing.pdf
http://www.unicopter.com/Germany Third Reich.pdf


Dave
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Old 10-29-2012, 08:49 AM
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Dave,

this is marvelous stuff!!! One thing that puzzles me is the dismal failure of the Fw 186, an autogyro which didn't seem to introduce any radical innovation, while the very innovative Flettner and Focke Wulf helicopters were such outstanding aircraft. Perhaps the engineers at Focke Wulf were ordered to screw up the 186....??? (Ok, just a wild guess).

Thanks for posting this!

Juergen
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Old 10-29-2012, 09:35 AM
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Thanks Dave !!! Very interesting stuff !!


Cita
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Old 10-29-2012, 10:18 AM
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Interesting stuff.

One of the more interesting aspects is the near universal use of the NACA 230 series of cambered airfoils for rotors.
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Old 10-29-2012, 11:01 AM
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Here’s a view of the Doblhoff rotorhead.

http://www.pra.org/publicdl/Articles...rotorcraft.pdf

The double row spherical bearing connecting rotor hub to airframe permits the rotor hub to self-align with the tip plane axis, eliminating the need for flap and drag hinges.
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Old 10-29-2012, 02:19 PM
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Quote:
Originally Posted by kolibri282 View Post
One thing that puzzles me is the dismal failure of the Fw 186, an autogyro which didn't seem to introduce any radical innovation, while the very innovative Flettner and Focke Wulf helicopters were such outstanding aircraft. Perhaps the engineers at Focke Wulf were ordered to screw up the 186....??? (Ok, just a wild guess).
Juergen

In Wikipedia ~ Focke-Wulf_Fw_186 it says; ".... However only one prototype of the aircraft was constructed, and the project was abandoned when the RLM preferred the Fieseler Fi 156 Storch over the Fw 186."


Dave
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Old 10-30-2012, 04:34 AM
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Quote:
....this computer will let you multitask like a madman
Arnie, if the computer didn't come with an additional pair of hands/arms their claim is bogous... you'll not be able to do more than one thing at a time....;-)
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Old 10-30-2012, 12:05 PM
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Hi Arnie,

You probable made a good choice. They say that desktops are declining in acceptance.


Juergen is the one providing most of the new information.


Dave
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