Ultralight One-Piece Whirlybird
There are already a number of hand-powered helicopters entered in the Make It Fly contest (like this , and this , and this , and this and this ), so why add another? Well, I was intrigued by these new toroidal rotors (all the cool kids…
- Pobrania
- 1869
- Polubienia
- 408
- Ocena
- 4,05


































































































