Launched on #ThisDayInHistory in 1906, the Royal Navy #battleship #HMSDreadnought rendered all existing capital ships obsolete. With ten 12" guns, a service speed of 21 knots, and a heavy armour belt, her mere existence created a naval arms race among the world's major powers.

HMS Dreadnought (1875), with a Euphrates-class Troop Ship https://www.destinationsjourney.com/historical-military-photographs/hms-dreadnought-1875-ironclad-turret-ship/ #MaritimeHistory #NavalHistory #RoyalNavy #HMSDreadnought #battleship #Ironclad