4 ms·
Vertical separation (based on altimeters) is way more precise than horizontal separation (based on radar, VHF navigation, GPS, eyeballs, etc).
by rkochman 7y ago
Vertical separation (based on altimeters) is way more precise than horizontal separation (based on radar, VHF navigation, GPS, eyeballs, etc).
- dehrmann 7y agoI've been on a trans-oceanic flight in the middle of nowhere, checked the screen to see where we're at, and the altitude is always within 4 feet of a flight level.