altimeter corrections

altimeter corrections

[al′tim·əd·ər kə′rek·shənz]
(engineering)
Corrections which must be made to the readings of a pressure altimeter to obtain true altitudes; involve horizontal pressure gradient error and air temperature error.
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References in periodicals archive ?
Regardless, such a system may require activation by maintenance personnel during installation in order to be functional, and some systems may apply temperature ased altimeter corrections all the time.
The system of putting altimeter corrections in the maintenance logs is one of the biggest tricks played upon pilots by mechanics.