answersLogoWhite

0


Best Answer

The altimeter in an aircraft works the same as an aneroid barometer. Pressure differences with height act on a spring and diaphragm housing, which moves the needle around. There is a subscale and adjusting nut, which the pilot uses to set the sea level pressure for the area. The atmospheric pressure drops about 1 millibar every 30 feet. So if the altimeter subscale is set while on the ground, then the aircraft takes off, and climbs to 1000 feet, the pressure will be about 33 mbar less than on the ground, and the height indicating needle will read 1000.

User Avatar

Wiki User

11y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What type of barometers are used in aeroplanes and why?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What type of sensors used in airplane?

type of sensors used in aeroplanes


Which type of compressor are used in aeroplanes?

Part of a turbine engine is the compressor. There are no others in aircraft.


What are digital barometers used for?

Digital barometers, much like analog barometers, are used to forecast the weather using humidity, air pressure, and dew point. This answer needed a few more characters.


Where barometers are mostly used?

t


What element is used for barometers?

Mercury


Why are barometers often more practical than mercury barometers?

They are more portable and can be used for airplane equipment


What barometers are there?

There are two types of barometers, Mercury barometers and then Aenroid barometers.


What can barometers be used to measure?

The pressure of air.


What are barometers used to measure?

it measure the atmosphere.


Where are barometers used in the world?

they are used all over the world


Which type of fuel is used in aeroplanes?

Jet fuel is used in jet aircraft while high octane gasoline is used in propeller-driven craft.


What was the RAF aeroplanes called?

The RAF has used many dozens of type of aircraft. You are probably tthinking of the famous Spitfires.