- 1 Why do planes fly at 35000 feet?
- 2 Why do planes fly faster at higher altitudes?
- 3 What is the best altitude to fly at?
- 4 At what altitude does a pilot need oxygen?
- 5 Do planes fly over Everest?
- 6 What happens if a plane flies too high?
- 7 Do pilots sleep while flying?
- 8 Can planes fly at 50000 feet?
- 9 Do you go faster at higher altitudes?
- 10 Can a plane fly at 60000 feet?
- 11 Why do planes leave white smoke?
- 12 At what altitude does breathing become difficult?
- 13 Can you breathe at 20000 feet?
- 14 Do Pilots breathe pure oxygen?
- 15 Is there oxygen at 35000 feet?
Why do 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 planes fly faster at higher altitudes?
The air gets thinner higher up as the density decreases, so air resistance is lower at higher altitudes. This means that an aircraft can fly faster and use less fuel at increased altitudes.
What is the best altitude to fly at?
The “sweet spot” of flying is regarded as between 35,000 and 42,000 feet (the airline industry still uses feet and inches as its standard measurements) – too high and the oxygen becomes too sparse to fuel the engines, too low and the air resistance is greater.
At what altitude does a pilot need oxygen?
Most pilots don’t think too much about using portable oxygen. Sure, everyone knows that you have to use supplemental oxygen if you fly more than 30 minutes at cabin pressure altitudes of 12,500 feet or higher. And that at cabin altitudes above 14,000 feet pilots must use oxygen at all times.
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.”
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.”
Do pilots sleep while flying?
Do pilots sleep in flight? The simple answer is yes, pilots do and are allowed to sleep during flight but there are strict rules controlling this practice. Pilots would only normally sleep on long haul flights, although sleep on short haul flights is permitted to avoid the effects of fatigue.
Can planes fly at 50000 feet?
Answer: Every airplane has a certified maximum altitude. A: Yes, very high altitude, above 50,000 feet, where there is very little air, has little or no turbulence.
Do you go faster at higher altitudes?
But a common questions is, do airplanes fly faster at higher altitudes? Technically, no. As altitude increases, air density decreases, which decreases engine performance but gives it better fuel efficiency. Each airplane has an optimal cruising altitude range that is the best tradeoff of speed and fuel efficiency.
Can a plane fly at 60000 feet?
Some aircraft can fly higher Concorde has been the only significant exception amongst commercial aircraft. It could fly up to 60,000 feet due to the increased lift generated when flying at much higher speeds. At low altitudes, drag would prevent it from reaching its high speeds.
Why do planes leave white smoke?
Jets leave white trails, or contrails, in their wakes for the same reason you can sometimes see your breath. The hot, humid exhaust from jet engines mixes with the atmosphere, which at high altitude is of much lower vapor pressure and temperature than the exhaust gas.
At what altitude does breathing become difficult?
The higher the elevation, the more difficult breathing becomes. According to the Cleveland Clinic, heights above sea level are categorized as follows: high altitude: 8,000 to 12,000 feet (2,438 to 3,658 meters) very high altitude: 12,000 to 18,000 feet (3,658 meters to 5,486 meters)
Can you breathe at 20000 feet?
It is the lack of oxygen rather than the reduced air pressure that actually limits the height at which we can breathe. An elevation of about 20,000 feet above sea level is the maximum height at which sufficient oxygen exists in the air to sustain us.
Do Pilots breathe pure oxygen?
Today’s fighter pilots therefore operate in cabins pressurized according to a pressurization schedule,15 they breathe up to 100% oxygen,15 and they wear and use pressure breathing equipment. Even so, pressure breathing did give fighter pilots a tactical altitude advantage and was in use in World War II.
Is there oxygen at 35000 feet?
Planes have lower oxygen levels If this didn’t happen, everyone inside the plane would die, as the low air pressure at the elevations planes fly (typically 35,000 feet or so) means there isn’t enough oxygen present for your body to function.