Hi - did you post this video somewhere that I can see it? Would love to have a look! Martin Jensen was my grandfather.
Ted Bohrer, e-mail, 08.07.2017 02:04
I was a good friend of Martin Jensen and stayed with him in Long Beach in 1965 as we rebuilt the coax. I have some film of his 1940s machine flying
евгенl, e-mail, 22.04.2017 15:05
вот откуда у России вертолёты с соосной схемой
George A. McCooubrey, e-mail, 31.12.2007 03:14
The writer worked for Bendix Helicopters during the devlopment period of 1946 & 1947.Other Info Sources, like this one, usually confuse the planned 4-place production helo, the model J, with the development test single place model K, which was in fact the first Bendix Helo to fly. It was a fortunate decision, for the original control concept patented by Vincent Bendix required redesign. The model J first flew in 1947 incorporating the lessons learned from the testing of the model K.
Brad Meerfeld, e-mail, 11.02.2007 05:20
Are plans or bluprints available on this aircraft. Please respond. Thank you!