Worldโs Largest Floating Dry Dock Was Towed Across the Atlantic to Bermuda in 1869
When Britain needed a solution for ship repairs in the Atlantic, engineers built the largest floating dry dock ever attempted, a 380' iron structure weighing over 8K tons
Built near Woolwich on the Thames, the dock was designed to lift 10K-ton ironclads like HMS Warrior & w/stand Bermudaโs warm waters
Unable to build a conventional dry dock due to porous sandstone, the Brits opted for mobility&scale, creating a self-contained U-shaped platform that could sink&raise vessels from the sea w/ballast compartments & powerful pumps
In June 1869, the dock embarked on a 4K-nautical-mile journey to Bermuda, towed in stages by Britainโs heaviest ironcladsโAgincourt, Northumberland, Warrior, & Black Princeโassisted by HMS Terrible
W/closed ends to reduce drag & a sail rigged inside to capture tailwinds, the voyage reached speeds of over 6 knots
Once in service, it supported Royal Navy ops for over 30 yrs before being replaced in 1906
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