3 ms·
To first approximation, the power needed to generate a given thrust is inversely proporional to the rotor diameter. See here; http://en.wikipedia.org/wiki/Mom
by D_Alex 14y ago
To first approximation, the power needed to generate a given thrust is inversely proporional to the rotor diameter. See here;
http://en.wikipedia.org/wiki/Momentum_theory http://en.wikipedia.org/wiki/Momentum_theory