For a two-bar VASI on final approach, if the lights show you are below the glide slope, what is your relative position?

For a two-bar VASI on final approach, if the lights show you are below the glide slope, what is your relative position?

• A. Above the glide slope
• B. On the glide slope
• C. Below the glide slope
• D. Off the right side

Answer: (C)

VASI is there to show how your flight path compares to the intended glide slope on final. If the lights indicate you’re below the glide slope, you’re lower than the desired descent path. The proper response is to gently raise your nose to fly a slightly higher path and re-intercept the glide slope, keeping the descent stable and in control while watching airspeed and descent rate. As you climb toward the slope and the indicator moves toward the on-path position, ease back the pitch to maintain a smooth, continuous approach. If you were above or off to the side, you’d make different pitch and alignment adjustments, but being below simply means you need to climb back up to the glide path.

VASI is there to show how your flight path compares to the intended glide slope on final. If the lights indicate you’re below the glide slope, you’re lower than the desired descent path. The proper response is to gently raise your nose to fly a slightly higher path and re-intercept the glide slope, keeping the descent stable and in control while watching airspeed and descent rate. As you climb toward the slope and the indicator moves toward the on-path position, ease back the pitch to maintain a smooth, continuous approach. If you were above or off to the side, you’d make different pitch and alignment adjustments, but being below simply means you need to climb back up to the glide path.