lag error

lag error (altimeter)

An error in a pressure altimeter when height changes are very rapid. The altimeter lags behind the actual height—the altimeter overreads in a rapid descent and underreads in a very rapid climb. The higher the rate of change, the higher the error. The error is not as prominent in rapid climb.
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In addition, the bus carries extensive diagnostics functions such as motor and junction temperatures, samples of current and lag error data, and other information.
Holes can be tapped at higher cutting speeds with the rigid tapping feature, and the velocity feed-forward function reduces lag error.