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Why was John instructed to avoid high altitudes and flying in non pressurized aircraft?
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Why do jet airplanes fly at high altitudes?
Jet airplanes fly at high altitudes because it is more fuel efficient. Flying at higher altitudes uses less fuel than flying at lower altitudes.
Is air pressure higher or lower when you are flying inside of an airplane?
Air pressure is always higher inside a pressurized airplane and about the same in an unpressurized one. As altitude increases, air pressure drops which results in less oxygen passing through the lungs and entering the bloodstream, hence the need to increase the proportion of oxygen or the pressure to be able to breathe. Federal Air Regulations require the use of either a pressurized cabin or the use of supplemental oxygen above certain altitudes. In addition to the lack of oxygen, there's the problem with loss of pressure at very high altitudes that could result in the formation of nitrogen bubbles within the blood and tissues. High altitude aircraft like the SR-71 Blackbird or the X-15 use fully pressurized suits for the pilots rather than have to pressurize the whole aircraft.
Why are airplanes pressurised?
Modern airliners and aircraft that fly above 15,000 feet are required to be pressurized because the oxygen levels at such high altitudes are not sufficient for the human body's needs. If much time is spent above these altitudes without pressurization or supplemental oxygen, hypoxia can result. The symptoms of hypoxia, or a lack of oxygen in the bloodstream, include nausea, discoloration, disorientation, and severe headaches. Not all airplanes are pressurized, however. Pressurization is limited to airliners, private jets, expensive personal aircaft, and high-altitude military aircraft. An alternative to pressurization is supplemental oxygen masks connected to oxygen tanks somewhere in the aircraft. Pilots are required to wear oxygen masks when flying above 12,500 feet for any longer than 30 minutes. At 14,000 feet, pilots are required to use supplemental oxygen at all times. At 15,000 feet, everyone on board must have supplemental oxygen.
What is a mach number in aeroplanes?
The mach number is the speed of an aircraft, expressed as a fraction of the speed of sound in the atmospheric conditions in which the aircraft is flying. An aircraft flying at mach 1 is flying at the speed of sound.
What does aviators mean?
it means flying an aircraft
Who can land on a aircraft carrier at night?
Pilots that are flying naval aircraft.
What is aviation?
Aviation is the the art and science of making and flying aircraft, or the flying, operation and operating of aircraft.An aviation can also refer to a cocktail made with gin, maraschino, crème de violette, and lemon juice.
What does aviation?
it means flying an aircraft
What tells you how high a plane is flying?
An altimeter (altitude meter) tells the pilots how high the aircraft is flying. There are 2 types of altimeters commonly used in aircraft: pressure altimeters and radar altimeters.
What is recreational flying?
Recreational flying refers to flying an aircraft for a use that is not transporting people or cargo.
Do you enjoy flying?
I enjoy flying if it is in small aircraft. -Flying in large passenger aircraft is much like riding in a luxury bus and has little to recommend it except speed of travel.
Are there any aircraft with no night flying capability?
Yes, there are many small aircraft, both civilian and military without night flying equipment.
