What Does VSI Stand For?
VSI stands for Vertical Speed Indicator
VSI, or Vertical Speed Indicator, is an essential instrument in aviation that measures and displays the rate of climb or descent of an aircraft. It provides pilots with real-time information on their vertical speed, usually expressed in feet per minute (fpm), allowing for more effective altitude management during flight operations. The VSI helps ensure safe and efficient maneuvers, particularly during takeoff, landing, and altitude changes.
Added on 14th April 2008 | Last edited on 17th June 2025 | Edit Acronym