1000 - 500 ft
it's the slowest you can fly without dropping out of the sky. It's different from plane to plane, altitude, amount of load etc.
Better fuel economy. The air is thinner at higher altitudes.
There is no certain cruising altitude for a commercial airline. it depends on where they are flying and how long they fly. most airlines fly above 10,000 ft. the max altitude is around 41,000 ft.
Because - the further you are away from the Earth's surface - the lower the temperature is.
An average plane flies between 5 to 10 km above the surface of the earth. Planes cannot fly below or above the altitude. After this altitude there is not much air.
The TROPOSPHERE (up to 10 km altitude, where we live) and the STRATOSPHERE (10 to 50 km altitude, where jet aircraft fly).
They usually fly in the stratosphere. That is from 25,000 feet to 40,000 feet. This may differ from palne to plane. A plane like Cessna flies very close to the ground at about 9000 feet.
Zero, if the jet plane is on the ground, otherwise it depends at what altitude the plane happens to be flying. Cruising altitude for many passenger airliners is around five to seven miles. Military aircraft often fly at much higher altitudes.
Helicopters fly at low altitude.Passenger planes climb to high altitude.Birds use low altitude height to fly from tree to housetop.Military cargo planes pass over my house at low altitude.
It's a measure of how low something can go. The lowest altitude an aircraft can be at is when it has landed. lowest safe flying altitude is at a respectful distance from the treetops.
When flying from the east to west you should fly at an even number altitude to the nearest thousand. But when flying using Visual Flight Rules you should fly at an even altitude to the nearest thousand plus 500 feet.
One of the main reasons is to conserve fuel. Airplanes can fly at any altitude and speed. However, airplanes generally tend to fly at high altitude to conserve fuel. This makes the plane more efficient and keeps the operating cost down. Of course, an airplane can not always fly at max altitude at every flight. It may have too much weight or the distance it travels may be too short. So there is always a trade-off as to how they will fly the route.