3 ms·
The tips need to stay subsonic. A bigger rotor must turn slower. AFAIK the tips of current wind turbines are already close to this limit.
by chopin 1y ago
The 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.