What is the temp at 40000 feet?
After all, commercial airplanes can cruise at an altitude of nearly 40,000 feet, where temperatures hover around -70 degrees Fahrenheit.
Can a human survive at 40000 feet?
The first challenge is starting at 40,000 feet. Above about 37,000 feet, it is impossible for the human body to take in enough oxygen to maintain consciousness.
What is the temperature at 41 000 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)|
What is the temperature at 30000 feet?
A: The standard temperature for 30,000 feet is -44.5C or -48F (Source: meteorologytraining.tpub.com/14269/css/14269_75.htm). All materials used in airplanes are designed and tested to withstand temperature extremes.
Is there oxygen at 40 000 feet?
Somewhere between 30,000 and 40,000 feet the pressure around you becomes far too low to push those oxygen molecules across the membranes in your lungs, and you get hypoxic (altitude sickness). If you try to breathe 100 percent oxygen above 40,000 feet for very long without a special type of mask, you’ll die.
How far can you see from 40000 feet?
So, at 10,000 feet you can see 122 miles, at 30,000 feet you can see 211 miles, and at 40,000 feet you can see 244 miles. Of course, if you look “above” the horizon, you can see the sun at 93,000,000 miles and at night, even further, to the stars.
How long does it take to fall from 40000 feet?
With an open parachute, it takes about 24 and a half minutes to descend from 40,000 feet. The landing speed is about 14 miles an hour. Note: This calculation is in reference to a round parachute. Without an open parachute, it takes a little over three minutes and the landing speed is about 110 miles per hour.
How long does it take a plane to crash from 30 000 feet?
When you’re in free fall from 9,144 meters (30,000 feet) in the air, a soft landing is probably the last thing on your mind. It all happens so fast. From the moment you’re outside of the plane, it’s only about 170 seconds until you hit the ground.
What is the speed of sound at 40000 feet?
Speed of Sound at a known temperature and density of air
|Altitude||Speed of Sound|
|Feet (ft)||Meter (m)||mph|
Can planes fly at 40000 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.
Can a person breathe at 30000 feet?
Above 28,000 to 30,000 feet with extra oxygen under pressure — normal consciousness and life can be sustained to 50,000 feet. With that medical mask, 100 percent of what the patient is breathing is oxygen and thus all the atmospheric pressure is available to help oxygenate the blood, and that makes a real difference.