Modern Marvels: Helicopters (2002 and 2010?)
I've been trying to track down a documentary I saw in the last decade or so about the invention of the helicopter. It had many clips of early prototypes, falures and successes. Tonight I saw Modern Marvels: Helicopter on youtube.com, which seems like it might be the one. However, when I checked the History Channel store and IMdb, there seem to be two dates for the title--2002 and 2010, and the description talks about flying modern helicopters, not a history of the invention. Anybody have any idea or explanation? I would like to buy the right DVD. Thanks for any clues or help you can provide.
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