Commercial aircraft fly at 25,000 to 35,000 feet, where the air is thin enough to reduce air friction and where atmospheric weather turbulence is less. The higher altitudes do not provide sufficient lift and there is less oxygen for the jet engines. Supersonic aircraft such as the Concorde and Tu-144 operated at even higher levels (up to 65,000 feet) because of the heating caused by very high flight speeds.
Commercial, jet engined aircraft, such as the 747, fly at approximately 40 000 feet. Propeller aircraft fly at lower altitudes
It varies upon aircraft type, private or commercial flight, and where the aircraft is going and on what heading. Above 3000 ft in the UK and 10,000 ft in America aircraft will fly on what is called a flight level which works off a pressure measurement of 1013.2hps keeping a 500ft gap between other aircraft on different headings (the quadrontal rule or semicircular rule if very high). The small aircraft you see flying about will tend to be about 1000-3000 ft and helicopters tend to fly on 1000 ft. Large passenger aircraft may go to 55000 feet or higher. Small private aircraft typically fly in the lower altitudes, say 3000 to 17000 feet and high performance private aircraft 18000 to 25000 feet. Commercial aircraft fly in the 35000 to 40000 foot range, and small business jets can operate in the 45000 to 50000 feet. These are broad generalities as operating altitudes are selected on a day to day basis depending on various factors such as winds, weather, time requirements, etc. Many military aircraft have much higher capabilities depending on the specific mission.
about 42k ft
Usually the higher the altitude the easier the flight as there is less air drag. However, apart from Concorde most commercial aircraft are not capable of flying at 50,000 feet.
Well, it is actually possible for a commercial aircraft to fly upside down or do a barrel roll.But the only problem is, when it tries 2 regain its normal position, due 2 it enoromous weight, the wings will shear 'tear' off.now U don't wanna fly an aircraft without wings @ 480 feet up in the air. That's a Bad Move :)
Durba Banerjee
most commercial airplanes fly from 35,000 feet to 45,000 feet above sea level.
Yes
Yes you can. A commercial flying license is above and beyond a private pilots license which is needed to fly on your own. A commercial flying license allows you to fly for profit.
At altitudes above 10,000 feet there is not enough air for humans to breathe. Aircraft cabins are pressurized so the pressure is equal to that at about 7,000 feet. Commercial airliners fly at altitudes up to 40,000 feet.
Providing the aircraft is properly maintained and documented, and barring any severe accidents, there is no limit. There are some aircraft from the 30's still flying in commercial service.
To fly a jet for non-commercial use, first you must obtain a Private Pilot's license. Then you must be certified on each individual aircraft type you wish to fly. To become a commercial pilot, you must then complete the training and hours requirements to be certified as a Commercial Pilot. Again, you must be individually certified or "rated" for each different aircraft you fly.