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Thread: IRS alignment B737NG
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Old 4th January 2017 | 15:23
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FlyingStone
 
Joined: Apr 2010
Posts: 1,320
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From: IRS NAV ONLY
Depends on where you fly, but in Europe with very reliable and accurate VOR/DME/DME updates and dual GPS, it's not really required to align it before every flight.

Nevertheless, I believe it is still Boeing recommendation, "if time permits".
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