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visual approach slope indicator

comm., électr.

indicador luminoso do ângulo de aproximação

transp., aviat.

indicador do ângulo de aproximação visual

indicador visual de ladeira de aproximação; indicador visual de ladeira de descida

Anglais glossaire

Visual Approach Slope Indicator

abrév., écoss.

visual approach slope indicator

A visual glide slope indicator VGSI consisting of four light units normally situated on the left side of the runway in the form of two wing bars, referred to as the upwind and downwind wing bars, and indicating that the aircraft is on slope if the upwind bar shows red and the downwind bar shows white, too high if both bars show white, and too low if both bars show red. (VGSI)

Visual Approach Slope Indicator

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