Ran across this several part series on the tube. I find this stuff immensely interesting. Bear in mind, this was right in the middle of WWII
Part 1 ----is pretty dry, watch it last. Skip down to Part 2
[ame="http://www.youtube.com/watch?v=uir9Engj4v4&feature=mfu_in_order&list=UL"]The Birth of the Bell Helicopter (Part 1) - YouTube[/ame]
Part 2
[ame="http://www.youtube.com/watch?v=nYkB2y49gnw"]The Birth of the Bell Helicopter (Part 2) - YouTube[/ame]
Part 3
[ame="http://www.youtube.com/watch?v=JOh09JJwoWM&feature=related"]The Birth of the Bell Helicopter (Part 3) - YouTube[/ame]
Part 4
[ame="http://www.youtube.com/watch?v=Hckc1m6wXJU&feature=related"]The Birth of the Bell Helicopter (Part 4) - YouTube[/ame]
And the result of all of the above, the famous Bell 47, familiar to anyone who ever watched MASH
[ame="http://www.youtube.com/watch?v=qegavUIKGAc&feature=related"]Rotorfest 2008 - Bell 47 Demonstration (2) - YouTube[/ame]
Part 1 ----is pretty dry, watch it last. Skip down to Part 2
[ame="http://www.youtube.com/watch?v=uir9Engj4v4&feature=mfu_in_order&list=UL"]The Birth of the Bell Helicopter (Part 1) - YouTube[/ame]
Part 2
[ame="http://www.youtube.com/watch?v=nYkB2y49gnw"]The Birth of the Bell Helicopter (Part 2) - YouTube[/ame]
Part 3
[ame="http://www.youtube.com/watch?v=JOh09JJwoWM&feature=related"]The Birth of the Bell Helicopter (Part 3) - YouTube[/ame]
Part 4
[ame="http://www.youtube.com/watch?v=Hckc1m6wXJU&feature=related"]The Birth of the Bell Helicopter (Part 4) - YouTube[/ame]
And the result of all of the above, the famous Bell 47, familiar to anyone who ever watched MASH
[ame="http://www.youtube.com/watch?v=qegavUIKGAc&feature=related"]Rotorfest 2008 - Bell 47 Demonstration (2) - YouTube[/ame]















