I have a quadricopter (4 bladed helicopter) that I thought was pretty big. Here’s a video of a really big one:
It won a prize for the first human powered helicopter to stay aloft for at least 30 seconds.
Big Quadricopter
July 12th, 2013 · 1 Comment
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1 response so far ↓
1 Don // Jul 13, 2013 at 9:03 pm
It’s amazing how slow those blades actually turn.
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