Multiple choice

Visual Approach Slope Indicator (VASI) helps in which of the following functions during landing?

  1. Yaw correction

  2. Descent guidance

  3. Maintaining center-line of runway

  4. All of the above

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

VASI (Visual Approach Slope Indicator) is a system of lights that provides pilots with visual guidance on their descent angle during approach. It helps pilots determine if they're on the correct glide slope, too high or too low relative to the optimal landing path. The lights don't help with yaw or center-line alignment; that's what other systems are for.