## How does an airplane stay in the air and fly?

Four forces keep an airplane in the sky. They are lift, weight, thrust and drag. The way air moves around the wings gives the airplane lift. The shape of the wings helps with lift, too.

What makes a plane stay in the air longer?

The thrust is generated by the jet engines, and this helps the plane to propel forwards, whereas the lift force acts on the plane wings and allows it to move upwards, and also to maintain its altitude. For a plane to stay in the air, the lift force needs to overcome the force of gravity.

Can a flight stand still in air?

You can’t have any object “stand still” in air – the laws of physics don’t allow it. But as others have explained, an aircraft can appear to remain motionless over ground and stabilized at altitude like a helicopter because of a headwind or through vertical engine thrust nozzles.

### What makes a plane stay in the air?

Here, he explains the mechanics of a modern plane. There are four forces that act on the plane while it’s in the air: thrust, drag, lift and gravity.

How does the shape of an airplane help it to fly?

The way air moves around the wings gives the airplane lift. The shape of the wings helps with lift, too. Weight is the force that pulls the airplane toward Earth. Airplanes are built so that their weight is spread from front to back. This keeps the airplane balanced. Don’t forget the pilot! Image Credit: NASA

What are the four forces that keep planes up in the air?

Allan is exactly right – 4 forces keep planes up in the air – lift, weight, thrust and drag. Lift pushes the plane up. This is helped by the shape of the wings. Weight pulls the plane toward Earth but planes are built so that their weight is spread from front to back keeping the plane balanced. Thrust moves the airplane forward.

#### What makes an airplane lift off the ground?

They are lift, weight, thrust and drag. Lift pushes the airplane up. The way air moves around the wings gives the airplane lift. The shape of the wings helps with lift, too. Weight is the force that pulls the airplane toward Earth.

How can airplane go so fast while it’s in the air?

There are two main forces acting on a plane in flight that control how fast it can go. These are called thrust and drag. Thrust is the force that the airplane uses to move forward through the air, and drag is the force that the air exerts on the plane to slow it down.

How do helicopter stay aloft in the air?

The reason why helicopters stay up in the air is because the individual rotary blades are shaped like airplane wings. Once the spinning rotor assembly has reached a certain speed, the curved blades chop up the air around them, creating lower pressure above the blade and higher pressure below.

## How many planes are in the air at any one time?

An average of 9,728 planes are in the air at any given time. 1 million to 1.5 million passengers are in the air at any time.

Can a plane stay on air without moving?

Techincally, there is only one way for the aircraft to remain hanging motionless in the air: if weight and lift cancel each other out perfectly, and at the same time thrust and drag cancel each other out too. But this is incredibly rare. To stay in the air and sustain its flight, an aircraft needs to be moving forward.