The CH-53D was ordered in the early 1960s to satisfy a Marine Corps requirement for a heavy lift helicopter. It has since
been replaced in the heavy lift mission by the CH-53E Super Stallion. All Marine Corps CH-53D helicopters are currently assigned to Marine
Corps Base Hawaii, Kaneohe Bay. The CH-53D, along with the CH-46E, is slated for replacement by the MV-22 Osprey.