LOCKHEED MARTIN has $164m U.S. Missile Defense Agency contract for Terminal High Altitude Area Defense Field Support Contract.

Boeing has delivered the interim fix, known as a fail-safe collar, to the U.S. Army and half of the program’s international customers so far to ensure the helicopter's rotor blades don't separate from the aircraft.

The competition is between the Boeing CH-47 Chinook and Sikorsky CH-53K King Stallion.