9 photos of the CH-53K King Stallion, the US military's most-powerful and expensive helicopter

Engineered by Sikorsky, the CH-53K King Stallion made its first flight in 2015.

It's about 28 feet high and 99 feet in length.

Source: US Naval Air Systems Command

It's powered by three T408-GE-400 turboshaft engines, which can bring the King Stallion to a maximum speed of about 230 mph.

Source: US Naval Air Systems Command, The Drive

And has a maximum altitude of about 9,520 feet.

Source: US Naval Air Systems Command

It also has a maximum takeoff weight of about 88,000 pounds, and can externally haul more than 27,000 pounds — three times what the CH-53E can.

Source: US Naval Air Systems Command

Here's a shot inside the cabin, which can fit two Humvees or a light armored vehicle.

Source: US Naval Air Systems Command

It's also fitted with a glass cockpit, which basically means it has digital displays, for the four-man crew, as well as fourth generation high-efficiency composite rotor blades with swept anhedral tips.

Source: US Naval Air Systems Command

The Marine Corps hopes to receive about 200 King Stallions.

Source: US Naval Air Systems Command

Lastly, here's a short video of the King Stallion in action.