Marine Development
Encyclopedia
Marine Development Ltd., established in Scotland
Scotland
Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

 in 1972, developed the Linkspan
Linkspan
A linkspan or link-span is a type of drawbridge used mainly in the operation of moving vehicles on and off a RO-RO vessel or ferry.Linkspans are usually found at ferry terminals where a vessel uses a combination of ramps either at the stern, bow or side to load or unload cars, vans, trucks and...

 for over 30 years. They pioneered Integral Tank, Submerged Tank, and Mobile Linkspans under the direction of John Rose. These semi-buoyant ship-to-shore bridges minimise engineering infrastructure requirements and were originally designed a cheap and simple means of using ro-ro ferries in the Western Isles of Scotland, but later found wider applications.

They no longer trade but their expertise was acquired in 2007 by TTS Marine
TTS Marine
TTS Group ASA Bergen-headquartered TTS is a global enterprise that designs, develops and supplies equipment for the marine and oil and gas industries...

, who are developing the design of tank linkspan further.
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