This is the CH-53K King Stallion which has successfully completed initial operational testing by the U.S. Marine Corps, which included external lift scenarios of 27,000 lbs. (12,200 kg) in hover and a 12,000 lb. (5,422 kg) 110 nautical mile radius mission. Ground events included embarkation / debarkation of combat equipped troops, internal and external cargo rigging, tactical bulk fuel delivery system operation and medical evacuation litter configuration. New composite rotor blades, and a wider aircraft cabin than previous CH-53 variants. It will be the largest and heaviest helicopter in the U.S. military. The USMC plans to receive 200 helicopters at a total cost of $25 billion.
The U.S. Marines Newest Heavy Duty Helicopter