Kilo-class submarine

Diesel electric submarine class / From Wikipedia, the free encyclopedia

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The Kilo class, Soviet designation Project 877 Paltus (Russian: Па́лтус, meaning "halibut"), NATO reporting name Kilo, is a class of diesel-electric attack submarines originally designed in the 1970s and built in the Soviet Union for the Soviet Navy. The initial version of Kilo submarines entered operational service in 1980 and were built until the mid-1990s.

Quick facts: Class overview, General characteristics...
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Russian Black Sea Fleet's B-265 Krasnodar Improved Kilo-class submarine in 2015.
Class overview
Builders
OperatorsSee Operators
Preceded byTango class
Succeeded byLada class
SubclassesSindhughosh class
Built1980–present
In service1980–present
In commissionDecember 1980–present
Building3
Completed73
Active64
Lost1
Retired16
Preserved1
General characteristics
TypeAttack submarine
Displacement
  • Surfaced: 2,325 (Project 877)–2,350 (Project 636.3) tons
  • Submerged: 3,075 tons full load (Kilo - Project 877 variant); 3,100 tons full load (Improved Kilo - Project 636.3 - variant[1])
Length70.0–73.8 m (229 ft 8 in – 242 ft 2 in)
Beam9.9 m (32 ft 6 in)
Draft6.2 m (20 ft 4 in)
Installed powerDiesel-electric
Propulsion
  • Diesel-electric propulsion
  • 2 × 1000 kW Diesel generators
  • 1 × 5,500–6,800 shp (4,100–5,100 kW) Propulsion motor
  • 1 × fixed-pitch 6 or 7 bladed propeller (6BL project 877) (7BL project 636)
Speed
  • Surfaced: 17 knots (31 km/h; 20 mph)
  • Submerged: 20 knots (37 km/h; 23 mph)
Range
  • With snorkel: 6,000–7,500 nmi (11,100–13,900 km; 6,900–8,600 mi) at 7 kn (13 km/h; 8.1 mph)
  • Submerged: 400 nmi (740 km; 460 mi) at 3 kn (5.6 km/h; 3.5 mph)
  • Full run: 12.7 nmi (23.5 km; 14.6 mi) at 21 kn (39 km/h; 24 mph)
Endurance45 days
Test depth
  • Operational: 240 m (790 ft)
  • Maximum: 300 m (980 ft)
Complement52
Armament
Close
Kilo-Class_Russian_Submarine_MOD_45165129.jpg
Russian Project 877 in the English Channel in 2018
Kilo_Submarine_DN-SC-96-00528.jpg
A Russian Kilo-class diesel-powered attack submarine underway on the surface

Production was switched to the more advanced Project 636 Varshavyanka (Russian: Варшавянка, meaning "Varsovian (inhabitant of Warsaw; feminine)") variant in the mid-1990s, also known as Improved Kilo class in the West.[citation needed] The class was updated again by the Rubin Design Bureau in the mid-2010s and called the Project 636.3.[2][1][3]