Giant Floating Victorian Drydock
14 hours ago
- #maritime engineering
- #Royal Navy history
- #Victorian technology
- In the 1860s, Britain built the largest floating dry dock ever attempted, a 380-foot iron structure weighing over 8,000 tons, to address ship repair needs in the Atlantic.
- The dock was designed near Woolwich on the Thames to lift 10,000-ton ironclads like HMS Warrior and withstand Bermuda's warm, fouling-prone waters.
- Due to Bermuda's porous sandstone, which prevented a conventional dry dock, Britain created a mobile, U-shaped platform using ballast compartments and powerful pumps to sink and raise vessels.
- In June 1869, the dock was towed nearly 4000 nautical miles to Bermuda by ironclads Agincourt, Northumberland, Warrior, and Black Prince, with assistance from HMS Terrible, reaching speeds over 6 knots with reduced drag and a sail rig.
- The dock supported Royal Navy operations for over thirty years before being replaced in 1906.