Super Dvora Mk III

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Class overview
Name: Super Dvora Mark III
Builders: IAI-Ramta
Operators: Naval flag of Israel Israeli Sea Corps,
Naval flag of Sri Lanka Sri Lanka Navy
In commission: 2004[1]
General characteristics ([2][3])
Type: Fast patrol boat
Displacement: 60 tons full load
Length: 27.4 m (86 ft) (incl. ASD platform)
Beam: 5.67 metres
Draught: 1.1 metres
Propulsion: 2x Detroit Diesel MTU 12V-4000 M90 (4175 hp each) and 2x Arneson Surface Drive-16 articulating propulsion systems
Speed: 45-50 knots
Range: 700 nautical miles (1,300 km) at 14 knots (26 km/h)
Armament: 1 x Typhoon 25-30 mm stabilized cannon/Oerlikon 20 mm cannon, 2 x 12.7 mm General Purpose Machine Gun

Super Dvora Mark III is the latest generation of the venerable Dvora family of fast patrol boats or fast attack crafts (FPB/FAC). Manufactured by IAI Ramta in 2004[1] these vessels are capable of speeding up to 50 knots (93 km/h) in littoral waters thanks to its state of the art thrust vectoring control Articulated Surface Drives(ASD) while holding various armaments up to 30 mm cannons in its armory.[3][4][5][6]

Contents

[edit] Performance

The Super Dvora Mk-III craft features interception of sea target at high-speeds approaching 50 knots (93 km/h); 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]

[edit] Propulsion system

The propulsion system consists of two Detroit Diesel MTU 12V-4000 (4175 hp each)[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 similar to the most advanced fighter aircraft such as Russian Su-35/37. Beside those systems Mk III's are also equipped with ZF4650 reduction gears, Kamewa 63SII water jets and intakes.[3][6]

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

[edit] Armaments

The Super Dvora Mk. III design is robust to allow for the installation of Typhoon 25-30 mm stabilized cannon, light or heavy machine guns, 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]

[edit] 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]

[edit] Specifications

Super Dvora Mk III mounted with a 25 mm Typhoon stabilized cannon.
Super Dvora Mk III mounted with a 25 mm Typhoon stabilized cannon.
Displacement
  • 48 Tons (Standard)
  • 54 Tons (Full Load)
Dimensions
  • Length: 73 ft 5 in (22.4 M)
  • Beam: 18' (5.5 M)
  • Draft: 3 ft 3 in (1.0 M)
Propulsion
  • 4175 total BHP
  • 3 MTU type 12v396 TE94 diesels
  • 3 Arneson outdrive semi-submersible props
Performance
  • Speed: 45 knots (83 km/h)
  • Range: 700 nmi (1,300 km) at 14 knots (26 km/h)
Manning
  • 9 total
Combat Systems
  • Missiles: AGM-114 Hellfire (Surface-to-surface type)
  • Guns: 2x20 mm AA, 2x12.7 mm MG, one 84MM Recoilless gun
  • Radars: 1 Raytheon type
  • E/O: El-Op MSIS Weapon Director

[edit] Further reading

"Information on Israel's largest aerospase concerns" . IAI News Fourth quarter, 2004 (Issue 12): 12. 

Preceded by:
Super Dvora Mk II		 Dvora series Succeeded by:
latest model

[edit] References

  1. ^ a b SeaWaves Today in History November 11. Seawaves Publishing Inc. ISSN 1710-6966. Retrieved on 2007-11-01.
  2. ^ a b c Military: Super Dvora. GlobalSecurity.org (2006-07-27). Retrieved on 2007-11-01.
  3. ^ a b c d "$15.5M for Israeli Fast Patrol Boat Propulsion", Watershed Publishing LLC, 2006-05-18. Retrieved on 2007-11-01. 
  4. ^ a b c d Super Dvora Mk III. israeli-weapons (2006-11-17). Retrieved on 2007-11-01.
  5. ^ a b c Super Dvora. GlobalSecurity.org (2005-04-27). Retrieved on 2007-11-01.
  6. ^ a b Super Dvora Mk-III - Super Dvora Mk-III. Deagel. Retrieved on 2007-11-01.
  7. ^ a b c Patrol BoatsFast Patrol/Attack Craft. Israel Aerospace Industries Ltd. Retrieved on 2007-11-01.
  8. ^ a b Super Dvora Mk III Fast Patrol Boat. Defense Update (2002-07-08). Retrieved on 2007-11-01.