# Quick Answer: Why Do Airlines Fly So High?

## How many planes are flying right now?

Well, that’s a matter of subjectivity.

On a normal day, at any given moment, FlightRadar24 would be tracking anywhere between 8,000 to 20,000 planes mid-flight, which is a lot more than it’s following now..

## How cold is it at 35000 feet?

At 35,000 ft. (11,000 m), the typical altitude of a commercial jet, the air pressure drops to less than a quarter of its value at sea level, and the outside temperature drops below negative 60 degrees Fahrenheit (negative 51 degrees Celsius), according to The Engineering Toolbox.

## How fast is a plane going when it lands?

Most commercial planes take off at roughly 160 to 180 MPH, while landings take place at approximately 150 to 165 MPH.

## How far can a pilot see at 35000 feet?

If you look up into space you are looking through about 62 miles of atmosphere, at 35,000 feet you will be looking through almost 230 miles of atmosphere to see the horizon.

## 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 planes do not fly over 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 you keep going up in space?

Your spacecraft would be much heavier, and much larger than this one, and you would still be limited in fuel, oxygen, water, and food. You would have to plan to return to the Earth before you left the launch pad.

## Has anyone been lost in space?

Soyuz 1 dooms cosmonaut: The first fatal accident in a space mission befell Soviet cosmonaut Vladimir Komarov, whose problem-plagued Soyuz 1 capsule crashed onto Russian soil in 1967. … The resulting drop in pressure also exposed the crew to the vacuum of space — the only human beings to ever experience such a fate.

## 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.

## Why is flying over Antarctica illegal?

Why don’t planes fly over Antarctica? The White Continent does not have much in the way of infrastructure and herein lies why planes do not fly over it. Something called ETOPS (Extended Operations) governs how far from an emergency diversion airport certain aircraft are allowed to fly, according to its model.

## Why do planes fly so high often 10 km above the ground?

Basically, the higher a plane flies, the thinner the air is. This is both good and bad. Good: there’s less drag on the plane, so less fuel is needed to hit the same speed. … Higher altitudes also require a longer climb, which in turn means the airplane burns more fuel to reach its cruising altitude.

## 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.

## Can a plane accidentally fly into space?

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. Since there isn’t any air in space, airplanes must stay within the Earth’s atmosphere.

## 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.” …

## Is it better to crash on land or water?

It would be safer on land. On land, the plane has no risk of flooding or sinking, and its occupants have no risk of drowning. If you’re on a plane with total engine failure, the pilots will try everything to land you on a runway. If, and ONLY if, their efforts fail, water is your best shot.