[Video] The Birth of the Bell Helicopter

[Super-Hornet]

While searching for other thing in YouTube, found this interesting video:
For those of u who are interested in the working of helicopter, the following videos show the early time of Arthur Young and Bell Helicopter development. You can learn some of the helicopter physics/principle in that video.

The Birth of the Bell Helicopter (Part 1)

http://www.youtube.com/watch?v=uir9Engj4v4

The Birth of the Bell Helicopter (Part 2)

http://www.youtube.com/watch?v=nYkB2y49gnw

The Birth of the Bell Helicopter (Part 3)

http://www.youtube.com/watch?v=JOh09JJwoWM&NR=1

The Birth of the Bell Helicopter (Part 4)

http://www.youtube.com/watch?v=Hckc1m6wXJU&NR=1

[remotemadness]

thks..

this is really nice to watch..

[King II]

very informative video, thks

[hallobaby]

Feel like the faces of death when the pilot hit by the blades.