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One way to measure airspeed is to use a device called a pitot tube.

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Q: How speed calculated in aircraft?
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In aircraft if pitot line got blocked what will be the altimeter reading?

Altitude is calculated on the basis of static air pressure and airspeeds are calculated on the difference between the static air pressure and pitot air pressure, therefore if the pitot tube were block the only instrument which would be affected would be the airspeed indicator. Static pressure ports are usually located on the skin of the aircraft where they are flush and cannot be affected by wind speed. ADDITIONAL INFO Static preasure is measured from the static port, usually located on the side of the aircraft. If the static port is blocked it usually freezes the altimeter at the last reading when the port was blocked. Many aircraft have a valve to switch to cabin preasure if the static port is blocked. Also you can break the glass of some altimeters so it will then use the cabin preasure to tell altitude. But beware that when you break the glass your vertical speed will read opposite, so it will say you are going up when you are going down etc. You can tell when the static port is blocked when the altitude reading doesn't change when the aircraft changes altitude.


What is gust speed?

Gust- 1. A sudden, brief increase in the speed of the wind. It is of a more transient character than a squall and is followed by a lull or slackening in the wind speed. Generally, winds are least gusty over large water surfaces and most gusty over rough land and near high buildings. According to U.S. weather observing practice, gusts are reported when the peak wind speed reaches at least 16 knots and the variation in wind speed between the peaks and lulls is at least 9 knots. The duration of a gust is usually less than 20 s. 2. With respect to aircraft turbulence, a sharp change in wind speed relative to the aircraft; a sudden increase in airspeed due to fluctuations in the airflow, resulting in increased structural stresses upon the aircraft. 3. (Rare.) Same as cloudburst


How can air pressure affect the window glass of an airplane?

Other than the force of the air on the windscreen as the aircraft moves forward through the air (a function of speed and air density), the primary affect of air pressure on window glass in an aircraft is from the force of cabin air pressure pushing out against the window. This force can be in the neighborhood of 8 pounds per square inch in the average commercial aircraft. Because of this rather significant force, windows in pressurized aircraft generally are small and sturdily built.


When was Spartan Aircraft Ltd created?

Spartan Aircraft Ltd was created in 1930.


How many ground miles can you see an aircraft contrail on the horizon?

Depends on the height of the aircraft above ground.

Related questions

How is the air speed of an airplane calculated?

Airspeed is calculated by measuring the same force you feel when you put your hand out a car window. The long tube you see sticking out the front of many aircraft(pitot tube) is there to sample the air pressure in front of the aircraft, free of any aerodynamic interference from the fuselage. This ram air pressure(pitot pressure) is the air pressure that's hitting the nose of the aircraft. It's then compared to a static air source (usually inside the fuselage) and from the difference the aircraft's speed can be calculated after biasing the results for daily differences in ambient air pressure.


For a fighter jet to take off from the deck of an aircraft carrier it must reach a speed of 62ms What is the calculated speed in miles per hour?

62 ms-2 ~ 138 mph.


How can an aircraft reduce the speed in the air?

during flight aircraft reduce speed by spoiler


How expensive is it to hire a private air charter from New York to the Bahamas?

It really depends on the hourly rate of the aircraft class. It is calculated by multiplying the hourly rate by the flight time. What also comes into account is the aircraft speed.


What is an aircraft's speed controlled by?

the speed of the engines


What is a mach number in aeroplanes?

The mach number is the speed of an aircraft, expressed as a fraction of the speed of sound in the atmospheric conditions in which the aircraft is flying. An aircraft flying at mach 1 is flying at the speed of sound.


What is the speed limit for aircraft taxiways?

This depends on whether you are looking for aircraft speed limits or motor vehicle speed limits.


What is groundspeed of the aircraft?

Ground speed is the speed the aircraft has compared to the ground. This is usually different from air speed, which is the aircraft's speed compared to the surrounding air. Thus an aircraft with 400 kph air speed and 50 kph headwind has a ground speed of 350 kph. For fun: with light aircraft with very low stall speeds it's possible to fly backwards (compared to the ground) if they fly into a headwind that's stronger than their lowest stall speed. I.e. their ground speed is negative.


Term used for velocity of an aircraft at the speed of sound?

When an aircraft travels at the speed of sound, it is said to be travelling at Mach 1.


What is the role of wind in flying an airplane?

Wing plays an important role in the speed of an airplane. A headwind reduces the speed of the aircraft. A tailwind increases the speed of the aircraft.


What is super sonic aircraft?

Super sonic aircraft is aircraft that flies faster than the speed of sound.


Some aircraft can fly faster than the speed of sound what is such speed called?

They are called Supersonic aircraft. Some aircraft can only do that. Some planes have reached even Hypersonic speeds.