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vertical speed indicator
- Definição1
- The vertical speed indicator (VSI) displays the rate of climb or descent in feet per minute (f.p.m.) by measuring how fast the ambient air pressure increases or decreases as the helicopter changes altitude.
- Fonte1
- FEDERAL AVIATION ADMINISTRATION. Rotorcraft flying handbook (FAA-H-8083-21). Washington, DC: FAA, 2000. Disponível em: http://www.faa.gov/library/manuals/aircraft/media/faa-h-8083-21.pdf. Acesso em: 10 fev. 2012.
- Nota Adicional1
- Acronym in English: VSI.
- Contexto
- The vertical speed indicator gives an indirect indication of the pitch attitude of the helicopter and should be used in conjunction with the other pitch instruments to attain a high degree of accuracy and precision. The instrument indicates zero when in level flight.
- Subárea
- Flight Instruments
- Ver
- climb indicator
- Français
- indicateur de vitesse verticale