Bora-class hovercraft

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Class overview
Builders:	Zelenodolsk Gorky Plant, Kazan (Chief Designer - L. Elssky)
Operators:	Russian Navy
Built:	1988–1995
In commission:	1997-present
Completed:	2
General characteristics
Displacement:	Around 1,050 tonnes (1,030 long tons)
Length:	215 ft (66 m)
Beam:	56 ft (17 m)
Draught:	10 ft (3.0 m)
Installed power:	4 × 200 kW diesel-driven generators
Propulsion:	Twin M10-D1 type gas turbine engines rated at 60,000 hp (45,000 kW) bound to two primary three-blade propellers Twin M511A reduction gear diesel engines rated at 20,000 hp (15,000 kW) bound to two primary three-blade propellers Twin M52OM3 auxiliary diesel engines driving superchargers rated at 6,800 horsepower (5,100 kW) used to inflate the skirts
Speed:	12 knots (22 km/h; 14 mph) cruise 55 knots (102 km/h; 63 mph) maximum
Range:	2,500 nmi (4,600 km) at 12 knots 800 nmi (1,500 km) at 55 knots (102 km/h)
Endurance:	10 days
Complement:	35 minimum 68 combat
Sensors and processing systems:	Monolit-E / Monument-E target detection and designation radar Pozitiv-ME1 air/surface search radar 5P-10E Fire Control Radar Anapa-ME1 sonar Moskit-E 3Ts-81E missile fire control system Various cannon and missile guidance and countermeasure systems
Electronic warfare & decoys:	Vympel-R2 suite with Foot Ball-A interceptors Half Hat-B interceptors 2 × PK-10 decoy rocket launchers 2 × PK-16 decoy rocket launchers
Armament:	2 × Quadruple MT-206ME launchers for 3M-80E "Moskit" marine cruise missiles (or various others) 1 × 9K33M "Osa-MA" type surface-to-air missile system for anti-aircraft defense with 20 missiles 1 × AK–176M automatic 76.2 mm cannon or 1 × AK-100 automatic 100 mm cannon 2 × AK-630 30 mm anti-aircraft Gatling cannons 16 × 9K38 Igla man-portable shoulder mounted surface-to-air missile launcher sets 2 × 14.5 mm naval machine gun mounts 1 × DP-64 anti-saboteur grenade launcher
Notes:	Combat ready in rough weather up to Sea State 5

The Bora-class hoverborne guided missile corvette of the Russian Navy, also bears the NATO class name Dergach, is one of the few types of military surface effect ship built solely for marine combat purposes, rather than troop landing or transport. Its designation in the Soviet and Russian navies is Project 1239; the first vessel produced under this designation was Sivuch, which was later renamed Bora. It is one of the largest combat sea vehicles with catamaran design.

The ship is one of many marine craft built by the Russian Federation for coastal defense, both domestically and for export. The weapons array Bora class warships carry varies depending on which of several configurations it is built to. The specifications listed are for the two existing craft.

The Bora-class was designed in 1988 mainly for coastal defense and patrol duties against surface vessels, large and small. Two were built and are currently in service, both assigned to the Russian Black Sea Fleet. A future series of hovercraft have been planned based on this model for future production.

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