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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.
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Why don't helicopters have no need of run way to take off?
They have no need of runway because they can lift off vertically
What can helicopters do that airplanes cannot?
1. Hover. 2. Take-off and land vertically. Although there are airplanes (such as the Harrier) which can do these things.
How are helicopters a useful means of air transport?
They can take off vertically and can hover over one spot. Traditional aircraft can not do that.
What are some benefits of helicopters?
The can fly sideways or backwards; they can hover; they can take off or land vertically, so they don't need a runway. They make it easier for reporters to do traffic images.
Where helicopters land and take off from this place?
Helicopters take off and land from a heliport, consisting of a landing pad (usually has an H on it) and a satellite.
Where does helicopters land and take off from?
A helipad
What can helicopters do that make them unique?
Vertical take off and set down for one Helicopters can hover.
Helicopters land and take off from this place?
heliport
Where do helicopters take off from?
Helicopters can take off from anywhere - runways, docks, building roofs, ship's decks. If it's a purpose-made spot it's usually called a helipad or a heliport.
What are the pros about helicopters?
They can land and take off almost anywhere.
What was the helicopters purpose?
Originally to take off and land where there were no runways.
What three unique tricks can a harrier do?
Take off vertically, land vertically, and hover in mid-air
