Helicopters have rotors
airplanes have propellers
A helicopter has rotor blades and an airplane does not.
The only jet airplane that is capable of hovering is the harrier jet. The osprey tilt-rotor aircraft may also be considered an airplane by some standards, and is also capable of hovering.
As a helicopter. The blades on the V-22 Osprey are much too long for it to land as a conventional airplane would.
Air moving over the rotor disk, much like an airplane wing.
A conventional airplane has wings that are rigidly attached to the body of the aircraft. The wings along with the body of the airplane move forward thru the air at speed, creating lift, which makes the airplane rise. With helicopters, the wings (rotors) are mounted on a shaft turned by the engine. The rotor turns, moving the rotor through the air, creating lift. The body of the helicopter does not have to move in any one direction. This means that (within the limits of power) a helicopter can fly left/ right, forwards/ backwards, or straight up/ down.
Helicopters are "rotary wing" aircraft- their wings are the rotor blades. Instead of deriving lift from moving air over the fixed wings of an airplane, a helicopter derives lift by moving the wings through the air.
Here are some.Military: F-22 RaptorV-22 Osprey (tilt-rotor helicopter)Commercial: Airbus A380 (2-passenger levels)
The basic difference can be boiled down to this: The similarities between the two is that they both fly from air moving over the airfoils. On a plane this is also called the wing, on a helicopter it's called the rotor. Since the airplane is a 'fixed wing' aircraft, the plane must be moving forward in over to fly. On a helicopter the spinning rotor generates lift all the time.
A plane that can start with a vertical lift off then switch to level is called a tilt rotor aircraft.
A helicopter flies using a rotor and can hover whereas an aeroplane has wings and aeroplanes can generally hold a bigger amount of people.
The main rotor of a helicopter is actually a set of wings that turn. They produce lift, just like the wings of an airplane. To change direction, the rotor is tilted, and the helicopter is PULLED in that direction.
My understanding of how helicopters work Is that the large propallern on the upper side (the rotor) which act as wings. when the rotor rotates and tilts the rotor blades gives the air the same carrying capacity as the wings of an airplane. Therefore, a helicopter launch straight up and land straight down and even stand still in the air. hope it helps: aliaaqil