An altimeter is a device used to determine the altitude attained by any object above a fixed level. A barometer or a radar fitted in the aircrafts is an example of altimeter. Altimeters are used by pilots for navigating aircrafts and spacecraft to monitor their height above the earth’s surface. Altimeters are also used by mountaineers and sky divers to pinpoint their location. https://www.reddit.com/r/starcitizen/comments/1i50svr/altimeter_significantly_reduces_fps_starc153193/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button