3 ms·
It's a fairly straightforward physics question, and Gemini Pro thinks the thrust to weight ratio is too low, by more than an order of magnitude, even before add
by p1mrx 1y ago
It's a fairly straightforward physics question, and Gemini Pro thinks the thrust to weight ratio is too low, by more than an order of magnitude, even before adding the weight of the frame and propulsion system.
- tim333 1y agoStraightforward physics suggests the lift is a function of how fast you spin them. I'm sure with a fast enough spin you could get enough lift. Maybe rocket engines on the tips?
- chopin 1y agoThe tips need to stay subsonic. A bigger rotor must turn slower. AFAIK the tips of current wind turbines are already close to this limit.
- tim333 1y agoStill subsonic speeds can produce a lot of lift. I mean jet aircraft weighing 200 tons lift off at about 160 mph. But googling wing tip thrust, jet engines are probably more practical than rockets.