Top 6 How Cold Is It At 40000 Feet 12858 Votes This Answer

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Between 9,000 and 12,000 metres (30,000 and 40,000 feet), the cruising altitude of most jet aircraft, air temperatures range from −40 to −70 °F (−40 to −57 °C).With an increasing altitude, it gets colder, and the average temperature at 38000 ft. is around -54 (-65 F).Most airliners have maximum certified altitudes of 39,000 to 41,000 feet; a few can go higher but usually do not. Many business jets can fly higher, routinely cruising in the high 40,000s. The maximum altitude for many business jets is 51,000 feet.

U.S. Standard Atmosphere Air Properties – Imperial (BG) Units

Geo-potential Altitude above Sea Level – h – (ft)	Temperature – t – (^oF)	Acceleration of Gravity – g – (ft/s²)
45000	-69.70	32.036
50000	–69.70	32.020
60000	-69.70	31.990
70000	-67.42	31.959

Contents

How cold is 50000 feet?

U.S. Standard Atmosphere Air Properties – Imperial (BG) Units

Geo-potential Altitude above Sea Level – h – (ft)	Temperature – t – (^oF)	Acceleration of Gravity – g – (ft/s²)
45000	-69.70	32.036
50000	–69.70	32.020
60000	-69.70	31.990
70000	-67.42	31.959

How cold is it at 38000 ft?

With an increasing altitude, it gets colder, and the average temperature at 38000 ft. is around -54 (-65 F).

Can planes fly at 40 000 feet?

Most airliners have maximum certified altitudes of 39,000 to 41,000 feet; a few can go higher but usually do not. Many business jets can fly higher, routinely cruising in the high 40,000s. The maximum altitude for many business jets is 51,000 feet.

How cold is it 35000 feet up?

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.

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.

Why do planes fly at 37000 feet?

The biggest reason for this altitude lies in fuel efficiency. The thin air creates less drag on the aircraft, which means the plane can use less fuel in order to maintain speed. Less wind resistance, more power, less effort, so to speak. Spending less on fuel is also great for airlines, for obvious reasons.

Can you freeze 30000 feet?

On aircraft which fly above 30,000 feet, the temperature can often can get to temperatures below Jet-A’s freezing point.

Why do planes not freeze in the air?

However, when an airplane comes in contact with it, the airplane acts as the freezing nuclei, freezing the droplets immediately. At an altitude of 35,000 feet, however, the clouds are made of ice crystals so no supercooled droplets exist thus, airplanes do not face icing issues.

Why do planes fly at 38000 feet?

Due to lower resistance at higher altitudes, commercial airplanes can keep moving forward with minimal fuel expenditure. Commercial airplanes typically fly between 32,000 feet and 38,000 feet, with the sweet spot being approximately 35,000 feet, which is popularly referred to as cruising altitude.

Why do planes not fly over the Pacific?

Flying over the Pacific Ocean is avoided by most airlines for most flights because it usually doesn’t make sense to fly over it when shorter and safer routes exist. The Pacific Ocean is also more remote and less safe than the Indian and Atlantic Oceans to fly over, resulting in a higher chance of a plane crashing.

At what altitude does turbulence stop?

So what’s the best altitude to minimize your exposure to moderate or greater turbulence? Well, considering both in-cloud and out-of-cloud turbulence, flight between 8,000 and 12,000 feet will allow for the smoothest ride, on average.”

What do pilots see when flying?

Pilots have a unique viewpoint while flying private or commercial aircraft. They get an unobstructed view of stunning natural sights, such as pink lakes and rectangular-shaped icebergs. Some have reported seeing UFOs, while others have flown over swirling hurricanes.

Can planes fly at 50000 feet?

The highest that a commercial airplane can fly is 45,000 feet. Most military planes fly at around 50,000 feet and sometimes higher. Some rocket-powered planes can fly as high as 100,000 feet but they are specially designed for this purpose.

Is there oxygen at 35000 feet?

Natural availability of oxygen at 35,000 feet

In other words, there’s ample air at 35,000 feet, and there is sufficient oxygen in it. In fact, there’s even a reasonable amount of air at the altitude where the International Space Station operates!

How cold is it at airplane altitude?

Airplanes fly in minus 56 celsius (-69 degrees Fahrenheit) or colder conditions at altitude, therefore if the fluids can be kept warm, the airplane can usually operate.

How much does temperature drop per 1000 feet?

You will lose an average 3.5 degrees Fahrenheit for every 1000 feet of elevation you gain.

Can you survive flight in wheel well?

Wheel-well stowaways face considerable risk of death during all phases of flight. Some have been unable to remain in the well during takeoff and landing and have fallen to their death. Immediately after takeoff, the landing gear retracts into the wheel wells, with the potential to crush the stowaway.

What temperature is too cold for planes to fly?

If the airplane can be kept in a hangar prior to flight, it can operate in very, very cold conditions. Airplanes fly in minus 56 celsius (-69 degrees Fahrenheit) or colder conditions at altitude, therefore if the fluids can be kept warm, the airplane can usually operate.

How cold is too cold to go running?

A good rule of thumb to follow is that if it’s -20 degrees Fahrenheit (wind chill included), stay inside at all costs. If it’s between that and 25 degrees F, running can be done with proper precautions for cold weather, but if you have a medical condition, you should check with your doctor before suiting up.

First Coors Light in Space! Testing the \”Super Cold\” label at -75°F and 93k feet…does it work?

temperature stress | Description, Symptoms, Physiology, & Prevention | Britannica

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Properties of the US standard atmosphere ranging -5000 to 250000 ft altitude

temperature stress | Description, Symptoms, Physiology, & Prevention

temperature stress, physiological stress induced by excessive heat or cold that can impair functioning and cause injury or death. Exposure to intense heat increases body temperature and pulse rate. If body temperature is sufficiently high, sweating may cease, the skin may become dry, and deeper and faster breathing may follow. Headaches, nausea, disorientation, fainting, and unconsciousness also may occur. The initial symptom of cold stress is pain in exposed areas. Continued exposure may lead to numbness, mental confusion, lethargy, and irregular heartbeat.

Temperature stress is a particular problem in aerospace medicine, and elaborate precautions must be taken to protect fliers and astronauts from it. Between 9,000 and 12,000 metres (30,000 and 40,000 feet), the cruising altitude of most jet aircraft, air temperatures range from −40 to −70 °F (−40 to −57 °C). Modern aircraft have sealed cabins and heaters to protect pilots and passengers from wind blasts and cold air. Protective clothing and electrically heated flight suits are used when exposure to the open air is possible.

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Above 30,000 metres (100,000 feet), the sun’s radiant heat can be intense. Supersonic aircraft, which sometimes fly at such altitudes, must withstand frictional heat caused by high speed. Such vehicles are made of heat-resistant materials and have air-conditioned cabins or cockpits. Fliers wear reflective outerwear and ventilated or porous clothing to promote circulation of air in order to permit perspiration.

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Spacecraft and space suits utilize special insulation, air-conditioning, and heating units to maintain a balance between the excessive heat and cold encountered in the vacuum of space. Excessive heat arises from solar radiation, human metabolism, operation of on-board equipment, and (while passing through Earth’s atmosphere) atmospheric friction. Extreme cold arises when an astronaut or a spacecraft remains in the shadow of another object long enough for internal heat to radiate into space. See also hypothermia; heatstroke.

U.S. Standard Atmosphere vs. Altitude

A “Standard Atmosphere” can be regarded as an average pressure, temperature and air density for various altitudes.

The “U.S. Standard Atmosphere 1976” is an atmospheric model of how the pressure, temperature, density, and viscosity of the Earth’s atmosphere changes with altitude. It is defined as having a temperature of 288.15 K (15 oC, 59 oF) at the sea level 0 km geo-potential height and 101325 Pa (1013.25 hPa, 1013.25 mbar, 760 mm Hg, 29.92 in Hg).

The atmosphere are divided in

the Troposphere – ranging 0 to 11 km (36.000 ft) altitude

– ranging altitude the Stratosphere – ranging 11 to to 51 km (167.000 ft) altitude

– ranging altitude the Mesosphere – ranging 51 to 71 km (232.000 ft) altitude

– ranging altitude the Ionosphere – ranging above 71 km (above 232.000 ft) altitude

U.S. Standard Atmosphere Air Properties – Imperial (BG) Units

Geo-potential Altitude above Sea Level

– h –

(ft) Temperature

– t –

(oF) Acceleration of Gravity

– g –

(ft/s2) Absolute Pressure

– p –

(lb/in2) Density

– ρ –

(10-4 slugs/ft3)

Dynamic Viscosity

– μ –

(10-7 lb s/ft2)

(10-7 slug /(ft s)) -5000 76.84 32.189 17.554 27.45 3.836 0 59 32.174 14.696 23.77 3.737 5000 41.17 32.159 12.228 20.48 3.637 10000 23.36 32.143 10.108 17.56 3.534 15000 5.55 32.128 8.297 14.96 3.430 20000 -12.26 32.112 6.759 12.67 3.324 25000 -30.05 32.097 5.461 10.66 3.217 30000 -47.83 32.082 4.373 8.91 3.107 35000 -65.61 32.066 3.468 7.38 2.995 40000 -69.70 32.051 2.730 5.87 2.969 45000 -69.70 32.036 2.149 4.62 2.969 50000 -69.70 32.020 1.692 3.64 2.969 60000 -69.70 31.990 1.049 2.26 2.969 70000 -67.42 31.959 0.651 1.39 2.984 80000 -61.98 31.929 0.406 0.86 3.018 90000 -56.54 31.897 0.255 0.56 3.052 100000 -51.10 31.868 0.162 0.33 3.087 150000 19.40 31.717 0.020 0.037 3.511 200000 -19.78 31.566 0.003 0.0053 3.279 250000 -88.77 31.415 0.000 0.00065 2.846

U.S. Standard Atmosphere Air Properties – SI Units

Geo potential Altitude above Sea Level

– h –

(m) Temperature

– t –

(oC) Acceleration of Gravity

– g –

(m/s2) Absolute Pressure

– p –

(104 N/m2) Density

– ρ –

(kg/m3) Dynamic Viscosity

– μ –

(10-5 N s/m2) -1000 21.50 9.810 11.39 1.347 1.821 0 15.00 9.807 10.13 1.225 1.789 1000 8.50 9.804 8.988 1.112 1.758 2000 2.00 9.801 7.950 1.007 1.726 3000 -4.49 9.797 7.012 0.9093 1.694 4000 -10.98 9.794 6.166 0.8194 1.661 5000 -17.47 9.791 5.405 0.7364 1.628 6000 -23.96 9.788 4.722 0.6601 1.595 7000 -30.45 9.785 4.111 0.5900 1.561 8000 -36.94 9.782 3.565 0.5258 1.527 9000 -43.42 9.779 3.080 0.4671 1.493 10000 -49.90 9.776 2.650 0.4135 1.458 15000 -56.50 9.761 1.211 0.1948 1.422 20000 -56.50 9.745 0.5529 0.08891 1.422 25000 -51.60 9.730 0.2549 0.04008 1.448 30000 -46.64 9.715 0.1197 0.01841 1.475 40000 -22.80 9.684 0.0287 0.003996 1.601 50000 -2.5 9.654 0.007978 0.001027 1.704 60000 -26.13 9.624 0.002196 0.0003097 1.584 70000 -53.57 9.594 0.00052 0.00008283 1.438 80000 -74.51 9.564 0.00011 0.00001846 1.321

US Atmosphere – Temperature vs. Elevation

Did You Know Why Airplanes Do Not Fly Much Higher Than 35-38k Ft?

2016-10-12

Many of us have probably wondered why planes can’t fly higher than they do now. Well, we have the answers to that! There are three key reasons for this:

1. ENGINE

Jet airplane engines are designed to run at peak efficiency with a specific amount of oxygen. In order to match that oxygen level, the plane must generally fly within that 30 to 40 thousand foot window. At that altitude, you get the most thrust possible for every drop of jet fuel.

2. AIR DENSITY

The higher the altitude is, the thinner (less dense) the air gets. With less air in the way there is less friction on an airplane. Travelling in the thin air requires much less energy in comparison to thicker air levels. At higher altitudes there is less weather differentiation which causes turbulence. If you have ever experienced turbulence you know that it’s usually not a pleasant experience.

3. TEMPERATURE

The third reason is air temperature! With an increasing altitude, it gets colder, and the average temperature at 38000 ft. is around -54 (-65 F). Colder air means that the engine will run more efficiently.

So you have finished reading the how cold is it at 40000 feet topic article, if you find this article useful, please share it. Thank you very much. See more: how cold is it at 24000 feet, how cold is it at 15000 feet, how cold is it at 50,000 feet, how cold is it at 10,000 feet, how cold is it outside a plane, how cold is it at 35,000 feet, why is it so cold at 30,000 feet, temperature at 30,000 feet

Top 6 How Cold Is It At 40000 Feet 12858 Votes This Answer

How cold is 50000 feet?

How cold is it at 38000 ft?

Can planes fly at 40 000 feet?

How cold is it 35000 feet up?

Can you breathe at 35000 feet?

Why do planes fly at 37000 feet?

Can you freeze 30000 feet?

Why do planes not freeze in the air?

Why do planes fly at 38000 feet?

Why do planes not fly over the Pacific?

At what altitude does turbulence stop?

What do pilots see when flying?

Can planes fly at 50000 feet?

Is there oxygen at 35000 feet?

How cold is it at airplane altitude?

How much does temperature drop per 1000 feet?

Can you survive flight in wheel well?

What temperature is too cold for planes to fly?

How cold is too cold to go running?

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