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How did commercial aircraft find their way around the globe before the GPS was introduced? What would happen to a modern aircraft if the GPS would just suddenly stop working?
In todays episode I will bring you through the different navigational systems that aircraft use and I will go into great detail about a system that I bet you have never heard about if you are not in the industry - the Inertial Reference System (IRS)

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Below you will find the links to videos and sources used in this episode. Enjoy checking them out!

INU: @ vectornav.com
https://www.vectornav.com/images/defa...

INS2: @ Sanjay Acharya
https://en.wikipedia.org/wiki/Inertia...

Ring Laser Gyro: @ Nockson
https://commons.wikimedia.org/wiki/Fi...

Mirrors: @ materionbalzersoptics.com
https://www.materionbalzersoptics.com...

Three Gyros: @ materionbalzersoptics.com
https://www.materionbalzersoptics.com...

ADIRU: @ National Air and Space Museum
https://www.si.edu/object/inertial-re...

Gyroscope: @ Lucas Vieira
https://upload.wikimedia.org/wikipedi...

Sextant Viewing: @UNKNOWN
https://aviation.stackexchange.com/qu...