breiz From France, joined Mar 2005, 1917 posts, RR: 2 Posted (3 years 6 months 4 weeks 12 hours ago) and read 2907 times:
Here is an article by flightglobal.com: http://www.flightglobal.com/articles...pter-pioneer-kaman-dies-at-91.html
Charles H. Kaman's helicopters were maybe not as famous as the likes of Sikorsky and Bell, but they were remarkable machines.
I have always wondered how came that the two main proponents of un-ortodox helicopters, intermeshing or co-axial rotors, were Kaman and Kamov.
A play of fate?
MD11Engineer From Germany, joined Oct 2003, 13996 posts, RR: 62
Reply 4, posted (3 years 6 months 3 weeks 6 days 11 hours ago) and read 2364 times:
Actually the intermeshing rotor system was pioneered in Germany by Anton Flettner, who designed the FL-282 Kolibri helicopter in 1942 (which was based on the proof of concept FL-265, also with intermeshing rotors from 1938).
Flettner used his contacts with highranking Nazis to protect or to warn various people persecuted by the Nazis of impeding arrest, including his own Jewish wife, whom he managed to bring to safety in Sweden.
After WW2 Flettner moved to the US as one of the first postwar German immigrants and started a company for helicopters. This company failed and he got hired by Kaman as chief designer.
Kaman contributed inventions of his own to the successfull range of helicopters.