Okay, so it's a bit of a cheat, but it is considered the first design for a helicopter. This, of course is Da Vinci's concept for a vertical flight machine. Although it never flew, it did demonstrate the principle which today's choppers use to fly. It's an Academy snap kit with a spring drive so it will actually rotate. Unfortunately, because of my camera woes, I can't show the finely molded details such as the wood grain and "sail" texture, but it is quite impressive.
Pretty neat, I had no idea anything like this even existed!
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