Depends on flight conditions, elevation, loads, if the engine is running and warmed up etc. but usually it's a matter of seconds.
No, a helicopter cannot take off from the moon because there is no atmosphere on the moon to generate lift for the helicopter's rotor blades. Helicopters require air to push down against to lift off the ground, and since the moon has no atmosphere, a helicopter would not be able to take off.
The rotors are used for lift and thrust on a helicopter.
Pushing Air downwards to fly. Rapidly spinning long, thin blades push air downwards to lift the helicopter up
with skill as low as a few inches off the ground
A helicopter flies do to rotorblades rotating. Most helicopters have two rotorblades, one to lift the helicopter off the ground, and the second, most commonly found on the tail, for stability.
Because all they need is their main rudder to spin fast enough to get the helicopter off the ground. They need only enough room to spin the rudder and for the helicopter to fit in a space. They don't need to go forward fast to lift off, unlike planes and shuttles.
time for an helicopter to takeoff varies on types and model of the helicopter it self. this is because every helicopter or aircraft have their own check list provided by the manufacturer or operator depending on operation. this check list is for the pilot to go through during start up, taxing, take off, approaching and landings. again, time for each machine to take off varies.
8.1 seconds
i am not completely sure.i think its yes.
In the 1400's Leonardo invented the "idea" of a helicopter. In 1906 Paul Cornu got a helicopter to hover 3 feet off the ground, but it would not go anywhere. In the 1940's Igor Sikorsky invented a helicopter that would safely fly and hover.
Well, they don't always. The advantage of the design of the helicopter is that it CAN take-off and land vertically and does not require a long runway. That allows it to delivery injured patients directly to the roof of a hospital. Many helicopter are equipped with small wheels that allow it to taxi. This also allows them to take-off and land with some roll. When a helicopter is heavily loaded, it usually takes off by at an angle and not vertically. This also allows the pilot to watch for other traffic. VTOL or Vertical Take Of and Landing was developed to provide access to any remote or space limited landing zone.
So aircraft could land and take off in confined spaces and off small ships.