Moving-platform inertial navigation systems are miracles of engineering and a fantastic example of human ingenuity. This video explains and shows how they use accelerometers, gimbals and gyroscopes to determine the location of a vehicle, including the associated challenges they face such as transport wander and apparent drift.
Huge thanks to Olaf for letting me use his footage!
https://www.youtube.com/user/olafzijnbuis
Learn more about the LN-3 moving platform INS here: https://en.wikipedia.org/wiki/LN-3_inertial_navigation_system
Flight simulator footage recorded in Microsoft Flight Simulator 2020, X-Plane 11 and Digital Combat Simulator.
00:00 - Intro
01:28 - Dead Reckoning: The foundation of Inertial Navigation
04:03 - Accelerometers and Modern Dead Reckoning
06:37 - Using Gyroscopes to Stabilize the Platform
08:49 - Apparent Drift and Transport Wander