I don't think many people are aware of Google Video yet because it's still officially in beta form and doesn't therefore appear on the main Google page, but go to:-
http://video.google.com/ (It's basically Google Images but for videos).
Try putting "helicopter" into the search box and you will currently get 1,481 direct links to videos with thumbnails......although some are repetitions and many are about R/C models.
Here's a trial link, although it does go via Google -
http://video.google.com/videoplay?do...4&q=helicopter
But caution - don't go to the "comedy" section unless you've got a spare three weeks on your hands!
JerryG