HMS Invincible (1869)

	HMS Invincible off Plymouth, 1870
History
United Kingdom
Name	Invincible
Builder	Robert Napier and Sons
Laid down	28 June 1867
Launched	29 May 1869
Commissioned	1 October 1870
Renamed	Erebus, 1904; Fisgard II, 1906
Reclassified	As depot ship, 1901; As training ship, 1906;
Fate	Sank, 17 September 1914
General characteristics
Class & type	Audacious-class ironclad battleship
Displacement	6,106 long tons (6,204 t)
Length	280 ft (85.3 m)
Beam	54 ft (16.5 m)
Draught	22 ft 7 in (6.9 m)
Installed power	6 × boilers; 4,021 ihp (2,998 kW);
Propulsion	1 × coal-fired reciprocating steam engine
Speed	Steam: 13.5 knots (25.0 km/h; 15.5 mph) Sail: 10 knots (19 km/h; 12 mph)
Complement	450
Armament	10 × RML 9 in (230 mm) guns; 4 × 64 pdr (29 kg) guns;
Armour	Belt: 8 in (20 cm) (amidships); 6 in (15 cm) (ends); Central battery: 6–8 in (15–20 cm);

HMS Invincible was an Audacious-class ironclad battleship built for the Royal Navy during the 1860s. She was built at the Napier shipyard and completed in 1870. Completed just 10 years after HMS Warrior, she still carried sails as well as a steam engine.