Altitude of an aircraft can be measured in two ways. One by measuring ambient air pressure at a given altitude and the other by bouncing radio beam down from the plane and time the duration for the beam to reflect back.
Watch our video -
How to Know Your Plane Part 1
The altimeter uses ambient pressure to measure height is called Pressure Altimeter and that uses Radio beam is called ‘Radio Altimeter’. Radio Altimeter can only measure height unto 2500ft or in some cases 5000ft, above the ground.
Radio Altimeter in Airbus A320
Airbus A320 has two Radio altimeters that measure the height above the ground accurately. There are no Radio Altimeter controls in the cockpit. Both radio altimeters become functional automatically when AC power is applied to the aircraft.
After a brief self test, the radio altimeters are in a standby mode during ground operations. They become active at lift off and operate continuously until touchdown.
After a brief self test, the radio altimeters are in a standby mode during ground operations. They become active at lift off and operate continuously until touchdown.
Radio altimeter data is supplied to several different users and is displayed on both PFD’s at times below 2500ft.
Normally Radio altimeter 1 (RA1) height is displayed on the Captain’s PFD and RA2 on the first officers PFD.
Watch our video -
Horses Training in Al Khisa Qatar
Dont Fail to LIKE our Facebook page
No comments:
Post a Comment