What is the extent of precision that can be achieved in finding True North employing Fiber Optic Gyroscope?

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Gerhard Martens

Dear Muhammad,

when I calculate your demand on angular precision of ONE ARC MINUTE into decimal point value of deg I end up with ONE MINUTE = 1/60 deg = 0.017deg. So it will take about 1/60deg/(0.05deg/h)= 1/3 h = 20 minutes time for the drift of your FOG to exceed your precision limit.

Therefore you will have only got limited time (less than 20 minutes) for performing your tasks which you want to do with your FOG.

Muhammad Ushaq

Thank you so much Gerhard Martens for this well directed point. I appreciate that.