About 750 mph is the speed of a subsonic air plane. Commercial jets average about 600 mph at cruising altitude. The fastest planes in regular use are military fighters, which can make speeds of 1100 MPH (F18) and higher, up to 2,115 MPH (MiG-25). Specialty aircraft like the X-15 and X-43 Scramjet made speeds of 4,000 MPH and 7,000 MPH.
The US spy plane, Lockheed U-2, has a top speed of 500 mph.
800mph
The top speed of an airplane can vary by the model of the plane. The highest speed ever reached was 2,193 miles per hour by an SR-71 Blackbird in 1976.
Maximum speed of piston engine plane is about 500 km per hour.
Aeroplanes use aerodynamics to stay in the air. When air moves across the wings of a plane at speed the air molecules hit the front of the wing. The wind is flat underneath but it is curved on top front the front to the back of the wing. As the air hits the front air passing over the top of the wing causes a vacuum the air below passes straight across the surface because its flat. By maintaining the vacuum across the top of the wing the aircraft is effectively sucked up into the air by the vacuum. The pilot has to control the air flow across the wings to keep the vacuum active. When a plane climbs and its nose (and therefore its wings) hit the critical angle the plane stalls. This is when zero air is now passing across the top of the wings to cause lift. The plane then starts to fall until the pilot is able to get the plane in to a slight dive to force air across the top of the wings again to cause life and stabilise the plane.
The Concord's speed was 1,176. Faster than the speed of sound
By not having enough lift and air speed under the wings.
There is a lot of explanation: but these are the basics: An airplanes wing is in a special shape it is flat on bottom and Curved on top. When a plane picks up speed the air must get from in front of the wing to the back of the wing. ( there cannot be a vacume!) Because the wing is curved air on top of the wing has to travel faster than the air on the bottom. The laws of physics state that as velocity (speed) increases, pressure decreases. therefore the atmospheric pressure on the top of the wing decreases and the plane rises.
When the nose drops slightly, the plane's air speed typically increases because the change in pitch causes the aircraft to descend slightly. As the aircraft descends, it gains potential energy which is converted to kinetic energy, leading to an increase in air speed. Pilots use this technique to accelerate or descend quickly if needed.
Wind speed is 30 while the plane speed it 460
The top is rounded in a way and the bottom is flat. This makes lift. That is how a plane stays up in the air.
A 747 typically travels about 600mph.