PPRuNe Forums - View Single Post - Using GPS ground speed to resolve Unreliable Airspeed

24th May 2019, 22:58

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FlyingStone

Join Date: Apr 2010

Location: IRS NAV ONLY

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Personally, I'd stick with the approved procedures for unreliable airspeed.

Your GS is 500kts. Are you safe? Could be TAS of either 650 or 350 with a 150kt wind. Neither of which will keep you flying for long at cruising FL.

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