Engineering:Super Dvora Mk III-class patrol boat

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Short description: Israeli military fast patrol boat
Super dvora mk3.jpg
Class overview
Name: Super Dvora Mark III class
Builders: IAI-Ramta
Operators: See Operators
Preceded by: Super Dvora Mk II class
Subclasses: Super Dvora Multi-Role, Super Dvora Mk IIIi
In commission: 2004[1]
Planned: 19
Completed: 19
Active: 19
General characteristics ([2][3])
Type: Fast patrol boat
Displacement:
  • Mk III: 72 tons
  • Multi-Role: 85 tons
  • Mk IIIi: 50 tons
Length:
  • Mk III: 27.4 metres (90 ft)
  • Multi-Role: 29 metres (95 ft)
  • Mk IIIi: 20 metres (66 ft)
Beam:
  • Mk III/IIIi: 5.67 metres (18.6 ft)
  • Multi-Role: 6.3 metres (21 ft)
Draught: 1.1 metres (3.6 ft)
Propulsion: 2x Detroit Diesel MTU 12V-4000 M90 (4,175 hp (3,113 kW) total) and 2x Arneson Surface Drive-16 articulating propulsion systems
Speed: 45 knots (83 km/h)-50 knots (93 km/h)
Range:
  • Multi-Role: 1,500 nautical miles (2,780 km) at 10 knots (19 km/h)
  • Mk III: 700 nautical miles (1,300 km) at 14 knots (26 km/h)
  • Mk IIIi: 300 nautical miles (560 km) at 30 knots (56 km/h)
Crew: 9-12
Armament:
  • 4 × AGM-114 Hellfire (Surface-to-surface type) missiles, SPIKE NLOS missiles
  • 1 × Typhoon 20-30 mm stabilized cannon
  • 1 × Oerlikon 20 mm cannon
  • 2 × 12.7 mm machine guns
  • Automatic grenade launchers

The Super Dvora Mark III-class patrol boat is the latest generation of the Dvora family of fast patrol boats or fast attack craft (FPB/FAC). Manufactured by IAI Ramta in 2004[1] these vessels are capable of travelling up to 50 knots (93 km/h; 58 mph) in littoral waters thanks to its state of the art thrust vectoring control Articulated Surface Drives (ASD) while holding various armaments, from automatic grenade launchers, AGM-114 Hellfire missiles, SPIKE NLOS missiles, and 30 mm cannons in its armory.[3][4][5][6]

Design and construction

Performance

The Super Dvora Mk III craft features interception of sea target at high-speeds approaching 50 knots; long-range missions thanks to its sea replenishment ability ahead of a typical four-day endurance; high maneuverability in both open ocean and littoral environment; steady sea keeping in a range of sea states and very callous weather; and the ability to incorporate advanced, stabilized, accurate marine arsenal and sensors. Taken as a whole, vessel displacement varies from 72 to 58 tons depending on the operation package.[4][5]

These vessels are fast and agile, and designed to reach and maintain high operating tempos. Its hull geometry provides constant sea keeping at all speeds, and a dry deck throughout high-speed runs and tracking down.[7]

Propulsion system

The propulsion system consists of two Detroit Diesel MTU 12V-4000 (4,175 horsepower (3,113 kW) total)[2] engines driving two articulated surface drives, which were initially designed for competitive speedboats. Arneson Surface Drive-16 articulating propulsion systems drives provide the vessel with thrust vectoring control. Beside those systems, Mk IIIs are also equipped with ZF4650 reduction gears.

Their thrust-vectoring propulsion system allows Super Dvora Mk III to function in shallow waters at draughts of 1.2 metres (3.9 ft) facilitating special operations forces delivery on enemy shores and catastrophe relief missions.[3][4][7]

Armaments

The Super Dvora Mk III design is robust to allow for the installation of Typhoon 20-30 mm stabilized cannon, heavy machine guns, AGM-114 Hellfire (Surface-to-surface type) missiles, SPIKE NLOS missiles, all of which can be slaved to state-of the art mast-mounted, day/night, long range electro-optic systems including Elbit/El-Op sensors and targeting systems.[2][4][5][7][8]

Developments

IAI-Ramta is currently working on a number of new configuration upgrade packages for the Super Dvora platform as Strike and Littoral Warrior, which consists of a variety of highly advanced precision weapon systems.[8]

Sri Lanka Navy Super Dvora MK III
Israel Navy Super Dvora Mk III-class patrol boat

Operators

  •  Angola: Confirmed to be unnamed country in 2015.[9]
  •  Israel: Active with Israeli Navy.[9] 13 Dvora Mk IIIs in service.[10]
  •  Myanmar: 6 Dvora Mk IIIs ordered.[citation needed] The sale is controversial due to its sales while the Rohingya crisis is still going on.[11]
  •  Sri Lanka: 6 active with Sri Lankan navy.[9]

References

  1. ↑ 1.0 1.1 "Today in History November 11", SeaWaves (Seawaves Publishing), ISSN 1710-6966, http://www.seawaves.com/newsletters/TDIH/november/11nov.txt, retrieved 2007-11-01 
  2. ↑ 2.0 2.1 2.2 "Military: Super Dvora". GlobalSecurity.org. 2006-07-27. http://www.globalsecurity.org/military/world/israel/superdvora-specs.htm. Retrieved 2007-11-01. 
  3. ↑ 3.0 3.1 3.2 "$15.5M for Israeli Fast Patrol Boat Propulsion". Watershed Publishing LLC. 2006-05-18. http://www.defenseindustrydaily.com/155m-for-israeli-fast-patrol-boat-propulsion-02267/. Retrieved 2007-11-01. 
  4. ↑ 4.0 4.1 4.2 4.3 "Super Dvora Mk III". israeli-weapons. 2006-11-17. http://www.israeli-weapons.com/weapons/naval/super_dvora3/SuperDvora3.html. Retrieved 2007-11-01. 
  5. ↑ 5.0 5.1 5.2 "Super Dvora". GlobalSecurity.org. 2005-04-27. http://www.globalsecurity.org/military/world/israel/superdvora.htm. Retrieved 2007-11-01. 
  6. ↑ "Super Dvora Mk-III - Super Dvora Mk-III". Deagel. http://www.deagel.com/Corvettes-and-Missile-Boats/Super-Dvora-Mk-III_a000134001.aspx. Retrieved 2007-11-01. 
  7. ↑ 7.0 7.1 7.2 "Patrol BoatsFast Patrol/Attack Craft". Israel Aerospace Industries Ltd. http://www.iai.co.il/Default.aspx?docID=17488&FolderID=32777〈=en. Retrieved 2007-11-01. 
  8. ↑ 8.0 8.1 "Super Dvora Mk III Fast Patrol Boat". Defense Update. 2002-07-08. http://www.defense-update.com/directory/super-dvora-3.htm. Retrieved 2007-11-01. 
  9. ↑ 9.0 9.1 9.2 "Angola confirmed as customer of IAI patrol boat order". 15 May 2018. https://www.bairdmaritime.com/work-boat-world/maritime-security-world/naval/ships-naval/angola-confirmed-as-customer-of-iai-patrol-boat-order/. 
  10. ↑ "Ancile". https://www.deagel.com/Auxiliary%20Vessels/Super%20Dvora%20Mk-III/a000134. 
  11. ↑ "Israel sold advanced weapons to Myanmar during anti-Rohingya ethnic cleansing campaign". Haaretz. https://www.haaretz.com/israel-news/israel-sold-arms-to-myanmar-during-ethnic-cleansing-campaign-1.5459614. 

Further reading

Israel Aerospace Industries. "Information on Israel's largest aerospace concerns". IAI News Fourth quarter, 2004 (12): 12. http://www.iai.co.il/pict/Newslet/IAI12Eng.pdf. Retrieved 2007-11-01. 

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