Terrain is marked by the sea level, so some terrain may be much higher above sea level than the runway/airstrip. That’s why planes ‘climb’ to an appropriate altitude to stay away from any sort of ground structures. At around 35,000 meters, aeroplanes lie on the sweet border between the troposphere and stratosphere.
Why do planes fly at 36000?
Since 36,000 feet is a further 7000 feet higher than the peak of Mount Everest, the air up there is pretty thin. That allows the aircraft to travel faster while using less fuel. Flying at this height also lessens the chance of a plane coming into contact with something else.
Why do commercial planes fly at 35000 feet?
The “sweet spot” of flying is regarded as between 35,000 and 42,000 feet – too high and the oxygen becomes too sparse to fuel the engines, too low and the air resistance is greater. This optimum height is linked to the usual weight of a commercial jet – that is, heavier planes fly lower, and lighter higher.
Why do jet planes fly at 30000 feet?
When they fly at 30,000 feet, they get less drag and therefore can reach those top speeds safely. Supersonic aircraft, including spy planes and fighter planes, can fly much higher and therefore resist drag better. They can produce greater thrust so that this thinner air doesn’t interfere with the engine’s efficiency.
What is the highest altitude a plane can fly?
Answer: The highest commercial airliner altitude was 60,000 feet by Concorde. The highest military air-breathing engine airplane was the SR-71 — about 90,000 feet. The highest airliner flying today reaches 45,000 feet. The highest business jet flying today reaches 51,000 feet.
Why do planes do not fly over the Pacific?
The primary reason airplanes don’t fly over the Pacific Ocean is because curved routes are shorter than straight routes. Flat maps are somewhat confusing because the Earth itself isn’t flat. Rather, it’s spherical. As a result, straight routes don’t offer the shortest distance between two locations.
What happens if a plane flies too high?
When the plane gets too high, there is insufficient oxygen to fuel the engines. “The air is less dense at altitude, so the engine can suck in less and less air per second as it goes higher and at some point the engine can no longer develop sufficient power to climb.” …
How cold is it at 35000 feet?
How cold is it up there? The higher you get, the colder it gets, up until 40,000 feet. If the temperature at ground level was 20C, at 40,000 feet it would be -57C. At 35,000 feet the air temperature is about -54C.
Are planes checked before every flight?
Some people think that before taking off in an airplane the pilot simply has a casual glance at it. Perhaps he kicks the types, checks the fuel gauges to makes sure he has enough fuel, and then just departs. But this is very far from the case. All good pilots use pre-flight checklists before every flight.
Can you breathe at 35000 feet?
Whether you are flying aboard a small Cessna or a jumbo-sized Airbus A380, you can breathe freely inside the cabin without wearing a mask or respirator. Even at a cruising altitude of 35,000 feet, you shouldn’t have trouble breathing.
Do planes fly over Everest?
Airplanes often avoid air paths that take them over Mt Everest or the Pacific Ocean. … This is because “the Himalayas have mountains higher than 20,000 feet, including Mt Everest standing at 29,035 feet. However, most commercial airplanes can fly at 30,000 feet.”
Do fighter pilots get shorter?
TIL fighters pilots lose an average of 1 inch of height every time they use the ejection seat, due to the amount of G’s placed on their body.
Can you hear a plane at 30 000 feet?
While immovable, they could detect aircraft as far as 15 miles away—a significant early warning in those days. Really, though, you don’t even need specialized equipment; there are plenty of times, on a quiet day, where I’ve heard commercial airliners far overhead, at 30–40,000 feet, using just my ears.
Why is it forbidden to fly over the Taj Mahal?
The Taj Mahal
Although there’s no official no-fly zone over the ivory mausoleum, there is a mile-and-a-half radius above the historic site which security agencies consider to be a no-go when it comes to flying. This is because of security reasons – as well as risks to the building’s white marble from plane pollution.
What happens if you fly a plane into space?
If an airplane flies in space, it won’t be able to suck in fresh air with which to supply its engines, resulting in loss of propulsion. The bottom line is that airplanes can’t fly in space because there is no air in space. Airplanes rely on air to produce both lift and propulsion.
Why do pilots land hard?
A firm landing allows for the ground spoilers to deploy more quickly, the wheels to spin up and the brakes to be applied. All of this helps with the braking action of the aircraft.