Marines with 1st Battalion, 12th Marines and Combat Logistics Battalion 8 perform an external lift with a CH-53E Super Stallion helicopter to move an M777 Howitzer to its firing position during Integrated Training Exercise 3-18 aboard the Marine Corps Air Ground Combat Center, Twentynine Palms, California. br br The CH-53E Super Stallion is the Marine Corps' primary heavy lift helicopter, and is currently the largest and heaviest helicopter in the United States military inventory.