Borodino-class battlecruiser

Launch of Izmail in 1915
Class overview
Name	Borodino (Izmail)
Operators	Russian Navy
Preceded by	None
Succeeded by	Kronshtadt class
Built	1912–1917
Planned	4
Cancelled	4
General characteristics
Type	Battlecruiser
Displacement	32,500 long tons (33,022 t) (normal)
Length	223.85 m (734 ft 5 in)
Beam	30.5 m (100 ft 1 in)
Draught	8.81 m (28 ft 11 in)
Installed power	25 Yarrow boilers 66,000 shp (49,000 kW)
Propulsion	4 shafts; 4 steam turbine sets
Speed	26.5 knots (49.1 km/h; 30.5 mph)
Complement	1,174
Armament	4 × triple 356 mm (14 in) guns 24 × single 130 mm (5.1 in) guns 4 × single 64 mm (2.5 in) AA guns 6 × 450 mm (17.7 in) torpedo tubes
Armour	Waterline belt: 125–237.5 mm (4.92–9.35 in) Barbettes: 147.5–247.5 mm (5.81–9.74 in) Conning tower: 250–400 mm (9.8–15.7 in) Turrets: 300 mm (11.8 in) Decks: 37.5–75 mm (1.48–2.95 in) Bulkheads: 75–300 mm (3.0–11.8 in)

The Borodino-class battlecruisers (Russian: Линейные крейсера типа «Измаил») were a group of four battlecruisers ordered by the Imperial Russian Navy before World War I. Also referred to as the Izmail class, they were laid down in late 1912^{[Note 1]} at Saint Petersburg for service with the Baltic Fleet. Construction of the ships was delayed by a lack of capacity among domestic factories and the need to order some components from abroad. The start of World War I slowed their construction still further, as the imported components were often not delivered and domestic production was diverted into areas more immediately useful for the war effort.

Three of the four ships were launched in 1915 and the fourth in 1916. Work on the gun turrets lagged, and it became evident that Russian industry would not be able to complete the ships during the war. The Russian Revolution of 1917 halted all work on the ships, which was never resumed. Although some consideration was given to finishing the hulls that were nearest to completion, the three furthest from completion were sold for scrap by the Soviet Union during the early 1920s. The Soviet Navy proposed to convert Izmail, the ship closest to completion, to an aircraft carrier in 1925, but the plan was cancelled after political manoeuvring by the Red Army cut funding and she was eventually scrapped in 1931.
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