Bora-class corvette

The Bora-class, Soviet designation Project 1239, 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. 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.

Samum
Class overview
Builders	Zelenodolsk Gorky Plant, Kazan (Chief Designer - L. Elssky)
Operators	Soviet Navy  Russian Navy
Built	1987–2000
In commission	1989–present
Completed	2
Active	2
General characteristics
Type	Corvette
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 2 x GTU (36000 hp , roughly 25.8 MW or few more) 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; 2,900 mi) at 12 knots 800 nmi (1,500 km) at 55 knots
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	8 (2 x 4) P-270 Moskit (SS-N-22 Sunburn) anti-ship missiles 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 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 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.