View Full Version : Flettner FL-282 Helicopter
01-03-2012, 12:11 PM
Tittle: The Luftwaffe Profile 06 - Flettner FL-282 (http://www.unicopter.com/Temporary/Luftwaffe_Profile_Flettner_FL282.pdf)
Description: 34 pages of information on the above craft.
Keywords: Flettner, FL-282, Intermeshing, Synchropter, German
01-04-2012, 03:55 AM
Both rotors intercrossed are an exceptional inventiveness
01-04-2012, 05:27 AM
Yes, Jean-claude, indeed! :D
01-04-2012, 05:30 AM
Starting at 2:17, here's some video of it flying. I think, ironically, that this helicopter was designed by a Jewish man.
WW2 German / Nazi Helicopters part 1 : Where Eagles Dare - YouTube (http://www.youtube.com/watch?v=6SrUyNG4fYA)
01-04-2012, 01:24 PM
I think, ironically, that this helicopter was designed by a Jewish man.
Bryan; Anton Flettner wasn't Jewish but his wife was. She converted to Catholicism when she was 16. Dr. Kurt Hohenemser, Anton's right-hand man, was Jewish.
Video of US testing of the Flettner FL-282 by Prewitt Aircraft Company
Flettner Fl 282 Kolibri - YouTube (http://www.youtube.com/watch?v=SIJoyyof6FU&feature=related)
Partial Copy of Prewitt's Evaluation; TR ATI No. 20283 Evaluation and Tests of the Flettner282
German Helicopter ~ Sept 1948.
Pilot's Comment's & General Comments (http://www.unicopter.com/Prewitt-2.html)
General Comments (cont.) & Conclusions (http://www.unicopter.com/Prewitt-3.html)
11-11-2013, 10:39 PM
Reflections on the life of Kurt Hohenemser (http://www.docshut.com/mkihim/reflections-on-the-life-of-kurt-hohenemser.html). An 11 page story of his life from Nazi Germany to the United States.
He was the mechanical mathematician behind Flettner.
There is also a 7 page article in the October 2013 Journal of the American Helicopter Society entitled; 'Reflections on the Pioneering Contributions of Professor Kurt Hohenemser to Helicopters and Wind Turbines'.
In this article it says; "....... Second is the fact that, in the 1970s he was a consultant to Sikorsky on the development of the coaxial rotor based on the advancing blade concept (ABC). Owing to an unexplained fatal accident the program was terminated. Hohenemser was given the task of providing an explanation of the accident. He concluded that the induced flow effects on the very stiff hingeless ABC rotor in transition had caused the control power limitations experienced by the pilot"
No one would have been more knowledgeable about the pros and cons of a 'marriage' between the Intermeshing configuration and the ABC rotor.
Unfortunately. the UniCopter project (http://www.unicopter.com/UniCopter.html) was started 2 years after his passing. http://www.rotaryforum.com/forum/images/icons/icon9.gif
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