Bora-class corvette

Samum
Class overview
Builders
Operators
Built1987–2000
In commission1989–present
Completed2
Active2
General characteristics
TypeCorvette
DisplacementAround 1,050 tonnes (1,030 long tons)
Length215 ft (66 m)
Beam56 ft (17 m)
Draught10 ft (3.0 m)
Installed power4 × 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
Endurance10 days
Complement
  • 35 minimum
  • 68 combat
Sensors &
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
NotesCombat ready in rough weather up to Sea State 5

The Bora-class, Soviet designation Project 1239 Sivuch, 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 MRK-27, which was later renamed Bora. It is one of the largest combat sea vehicles with catamaran design.

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.

Deployment

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.

Samum was reported damaged during the Russo-Ukraine War by a Ukrainian drone strike in September 2023.[1][2] Nevertheless, both corvettes were reported active as of 2024 relocating to the eastern Black Sea from Crimea where they were evidently considered too vulnerable to a potential attack.[3]

Ships

Name Hull no. Laid down Launched Commissioned Fleet Status
Bora
(ex-MRK-27)
615 1987 1989[4] Black Sea Fleet Active
Samum
(ex-MRK-17)
616 September 1991[4] 1992 2000 Black Sea Fleet Active; reportedly damaged during drone strike in 2023, but reported active again in 2024.[5][6][7]

See also

References

  1. ^ "Damaged Samum Ship Towed to Sevastopol Base But Repairing It is a Huge Problem". 17 September 2023.
  2. ^ "Media: Ukraine hits Russian missile-carrying ship with sea drone". The Kyiv Independent. 2023-09-15. Retrieved 2024-06-06.
  3. ^ Kushnikov, Vadim (30 June 2024). "Two Russian corvettes leave Crimea due to the threat of naval drones". Militarnyi.com. Retrieved 5 October 2025.
  4. ^ a b "Air Cushion Missile Ship: Project 1239 Sivuch". Russianships.info.
  5. ^ "Damaged Samum Ship Towed to Sevastopol Base But Repairing It is a Huge Problem". 17 September 2023.
  6. ^ "Media: Ukraine hits Russian missile-carrying ship with sea drone". The Kyiv Independent. 2023-09-15. Retrieved 2024-06-06.
  7. ^ Kushnikov, Vadim (30 June 2024). "Two Russian corvettes leave Crimea due to the threat of naval drones". Militarnyi.com. Retrieved 5 October 2025.