FeliveNdrell
Re:How the pilots of Lion Air Flight 610 lost control
on Thursday December 27, 2018 @01:34AM (#18767842)
Inertial Navigation System (INS) measures linear acceleration (via accelerometers), angular velocity (via gyros) and optionally magnetic heading. Using integration and filtering (Kalman or similar) you get aircraft velocity, position and attitude. Without constant correction (GPS for example) calculations based on INS measurements degrade over time (due to instrumental and calculation errors) but in range of minutes they are pretty accurate.