A visual landing aid, officially the Fresnel Lens Optical Landing System, commonly called the meatball located next to the flight deck. The pilot reports when he has visually acquired it prior to landing, by calling the ball.

The assembly on the port side of the flight deck.     How the light appears when the aircraft is on the correct glide path.

by Rod Peterson ©2005 All Rights Reserved

Last updated: 7 October 2005