What is the difference between barometric and radio altimeters of an aircraft and how do pilots choose which one to use? - Quora
What is the difference between barometric and radio altimeters of an aircraft and how do pilots choose which one to use? - Quora
![Chapter 15 Radio Altimeter RA. Radar Altimeter Overview The radar altimeter measures absolute altitude, the altitude the aircraft is above the ground, - ppt download Chapter 15 Radio Altimeter RA. Radar Altimeter Overview The radar altimeter measures absolute altitude, the altitude the aircraft is above the ground, - ppt download](https://images.slideplayer.com/26/8744668/slides/slide_4.jpg)