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Thread: Transition to IAS on descent
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Old 21st March 2018 | 13:01
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extricate
 
Joined: Apr 2008
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From: Test
Originally Posted by RAT 5
what are the ways to know when Mach has changed to IAS on descent in the Boeings?

Observing the speed tape passing FL300 should give a clue. That is where you'd expect it to start to change over. As has been said there are various parameters affecting the specifics, but FL280-300 is a common window.

Thanks but speed tape is always showing IAS? Unless you are referring to the Mach no below the speed tape (For Boeings)?
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