Since air is not inherently flammable, there is no speed at which a helicopter blade would catch the air on fire.
just because haahahaha
Because you have some kind of seeing disorder.
Not much faster. True helicopters are limited in airspeed. The helicopter blade can not fly faster than the speed of sound or it begins to flutter and even stall. The advancing blade has to go through the air faster than the retreating blade. The speed of the blade is the sum of the speed of the helicopter in forward flight plus(+) the rotational speed of the turning blades. If they can design a blade that will work at slow speeds and at speeds greater than Mach 1, then maybe they can build a faster helicopter.
A fast aeroplane will be faster than any helicopter, but a fast helicopter can be faster than a slow aeroplane.
it depends how fast its going
Depends on the purpose and make of the helicopter.
quite fast, there is more drag from the fuselage going side ways and it would be less stable
A typical medivac helicopter flies about 160 knots.
You would have to cut it out with a blade or cable.
232mph
249 mph
I would say about ten miles an hour but can go up to 15 miles an hour but would be hard to control.