- May 14, 2021
.Try to keep the rotor working at low speed.
--- Even a rigid rotor is not rigid
--- Tie a rope to the ends of helicopter blades and lift up
--- The helicopter will stay on the ground and the blades will bend up like a big U
--- Centrifugal force is what keeps blades straight
--- Tie a rock to a string and spin it around ... string will be straight ... same thing
--- Most helicopter blades turn about 300 rpm to keep them straight
--- Less than 200 rpm they will bend and you will fall to the ground.
--- Want to go faster than 200 mph ... use an airplane
--- Want to go straight up .... use a helicopter ... but they fly less than 200 mph
--- There is no magic invention to change it.