Instruments

Vertical Speed Indicator(VSI)

Definition

An instrument showing rate of climb or descent in feet per minute by measuring the rate of pressure change. There is inherent lag in the VSI, with instantaneous VSI variants reducing this delay.

Related Terms

Altimeter

A barometric instrument measuring altitude by sensing atmospheric pressure chang...

Rate of Climb

The vertical speed of an aircraft in feet per minute during climb. Depends on ex...

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