Heavy lift ships they are primarily of the semi-submersible ship variety, capable of lifting another ship out of the water and transporting it, also known as “flo/flo” for float-on/float-off. Above: The heavy lift vessel MV Blue Marlin with its deck cargo of the Sea-Based X-Band Radar enters Pearl Harbor, Hawaii. Image credit: Wikimedia
These vessels began appearing in the early ’80s, have a long and low well deck that can go down under water allowing oil platforms or other vessels, to be moved into position for loading.
Images credit: Wikimedia
The 750-foot Blue Marlin, and her sister ship Black Marlin, are two of the most advanced.
Blue Marlin is a semi-submersible heavy lift ship designed to transport very large semi-submersible drilling rigs above the transport ship’s deck. It is equipped with 38 cabins to accommodate 60 people, a workout room, sauna and swimming facilities.