transition level


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transition level

[tran′zish·ən ‚lev·əl]
(navigation)
The flight level below which heights are expressed in feet above mean sea level and are based on an approved station altimeter setting.

transition level

The lowest flight level available for use above the transition altitude. See also transition altitude.
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"So far, electrochromic technology has only been able to offer binary transition states-that is, fully dark, fully clear, or pre-set transition levels between those two extremes.

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