HMS Dreadnought
From Graces Guide
1875 The fifth ship bearing this name in the Royal Navy was launched at Pembroke Dockyard and completed fitting out at Portsmouth Dockyard, sister ship to HMS Devastation and HMS Thunderer but considerably larger than the Thunderer.
An ironclad with displacement of 10,800 tons, propelled by twin-screws driven by compound engines capable of indicating 8000-horse power, and giving her a speed of about 14.5 knots. She carried four 38-ton rifled muzzle-loading guns in two turrets.
The sixth one was HMS Dreadnought (1906)