Aviation Dictionary

Instantaneous vertical speed indicator (IVSI)

Assists in interpretation by instantaneously indicating the rate of climb or descent at a given moment with little or no lag as displayed in a vertical speed indicator (VSI).

Dictionary Term

Instantaneous vertical speed indicator (IVSI)

Definition

Assists in interpretation by instantaneously indicating the rate of climb or descent at a given moment with little or no lag as displayed in a vertical speed indicator (VSI).

References

Pilot's Handbook of Aeronautical Knowledge · Federal Aviation Administration · 2023