Nick,
You say;
The truth is not quite so boldly deceptive as you would wish (that web site you use as "proof" is a Luftwaffe web site that goes out of its way to show how wonderful everything was back then when Nazis ruled the known world):
Not quite
"the truth".
The picture in my posting comes from the book
Hubschrauber und Tragschrauber
The production statistics come from
'Helicopters of the Third Reich'. Appendix II lists and provides information on everyone of the Fl-282s and Fa-223s. Oh, by the way it's author is Steve Coates, who lives in England and published the book in 2003. You may wish to read the Editorial Review and the Customer Review if you appreciate facts and detail.
When evaluating Fact versus Fantasy, consider the factual competence of the above versus Igor Sikorsky's
"Two rotors are like two women in the kitchen. You might think they would do twice as much work, but the efficiency of each is lower-ed by 35 percent.", previously mentioned by IFMU.
Perhaps one of Sikorsky's newly hired 'Quality Inspectors' should be sent over to the Marketing department.
___________________________
Mart,
why are you basing your arguements on machines that flew over half a century ago?
Because the title of this thread is 'Why are Helicopters with the Flettner-System so slow?' All I am showing is that the 'Flettner-System' was not slow. The direction that Kaman took the interleaving (synchropter) configuration created the conception of slowness.
Did nature make it to the Moon?
If 'nature' means 'life' then appears that the answer is; - Yes. 'Life' rode a comet. Is not the comet an appropriate 'vehicle' for the enviroment of space?
Dave