China's Jiaolong AG600 sea plane.

What if I told you that the USMC/USN operated a sea plane that was C-130 sized, could transport Marines at distance, could land and take off at sea state 4 and that they were looking at cargo, pure troop carrying, anti-sub and rescue variants?

I know I would cheer.

Having said that, now consider that its not US naval forces that are acquiring such a plane but the Chinese.  via Defense News.

"Amphibious planes like the AG600 would be perfect for resupplying the new artificial islands that the Chinese are building in the SCS," said Richard Bitzinger, coordinator of the Military Transformations Program at Singapore's S. Rajaratnam School of International Studies.
"At the same time, these islands would be excellent bases of operations for the AG600 to engage in maritime patrols of claimed territories."

Wow.