Two of the last CH-46 Sea Knights in service with the U.S. Marine Corps, one repainted with Vietnam War-era markings, takeoff from Boeing’s Philadelphia site in June 2015. Both aircraft support Marine Medium Helicopter Squadron 774, which will transition to the MV-22 Osprey in January 2016.

Squadron 774 carries with it the legacy of the "Phrog," the nickname given to the CH-46 for its amphibian-like appearance at takeoff. Boeing has supported the aircraft and the Marines flying them for more than 51 years. Global Services & Support’s Rotorcraft Support program provides transactional supply-chain support and field-service representatives.

To meet evolving mission requirements, the V-22 will provide the Marines with advanced capabilities for its future demands.

The U.S. Marine Corps retired the CH-46 Sea Knight in August 2015.