TLA has various meanings in the Military category. Discover the full forms, definitions, and usage contexts of TLA in Military.
The airspace between the transition altitude and the transition level. Aircraft descending through the transition layer will use altimeters set to local station pressure, while departing aircraft climbing through the layer will be using standard altimeter (QNE) of 29.92 inches of Mercury, 1013.2 millibars, or 1013.2 hectopascals.
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