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 Maldivian Coast Guard Colombo-class coastal surveillance vessel | |
| Class overview | |
|---|---|
| Name | Colombo class |
| Builders | Colombo Dockyard Limited |
| Operators | SeeOperators |
| Subclasses | SeeSubclasses |
| Cost | USD$2.95 million (Series III)[1] |
| In commission | 1996 |
| General characteristics | |
| Type | Ultrafast attack craft |
| Displacement | 52 long tons (53 t) (Series I and II) 56 long tons (57 t) (Series III) |
| Length | 24.3 m (79 ft 9 in) (Series I and II) 24 m (78 ft 9 in) (Series III) |
| Beam | 5.7 m (18 ft 8 in) |
| Draught | 3 m (9 ft 10 in) (Series I and II) 1.1 m (3 ft 7 in) (Series III) |
| Propulsion | |
| Speed | 45knots (83 km/h; 52 mph) (Series I and II) and 53 knots (98 km/h; 61 mph) (Series III) |
| Range | 500–600 nmi (930–1,110 km; 580–690 mi) |
| Complement | 10–12 |
| Armament | 1 xTyphoon stabilized system withM242 Bushmaster/Oerlikon 20 mm cannon & additional armaments |
TheUltra Fast Attack Craft, commonly known as theUFAC[2] orColombo class, is aSri Lankan ultra high-speed class ofpatrol boats meant for a variety of naval missions from off-shore coastal patrol missions to high-speed, high-maneuverlittoral warfare. They are based on the Shaldag boats made by Israel.[2]
Built byColombo Dockyard Limited for theSri Lanka Navy (SLN),[1] they became the workhorse of the SLN againstSea tiger boats of theLTTE.
On December 27, 2007, one UFAC Series II was destroyed and another damaged during an encounter between Sri Lankan Navy and Sea Tiger patrol boats between Delft Island and Mannar.[3]
On March 22, 2008, a UFAC was taken out via Sea Tiger suicide attack at the waters off Nayaru and the Kokilai lagoon south of Mulaithivu District.[4]
The boats of the Series I are 24 m (78 ft 9 in) long with amonohull with a vibration-free deck, powered by twinMTU main engines developing 1,630 kW (2,190 hp) each, drivingKamewawater jets.[5] This enables the boat to reach speeds of 45knots (83 km/h; 52 mph) and have an endurance of 500nautical miles (930 km; 580 mi). They have a crew of 10.[5]
Around 12 were delivered to theSri Lanka Navy (SLN).[1]
Series II the successor to the earlier type. Main upgrades include the increase of accommodation for a crew of 12 and major improvements thesuperstructure.[5]
Like the Series I, around 12 were delivered to the SLN.[1]
The Series III is the recent addition to the class and has incorporated current combat requirements and experience in the battlefield archived by the SLN. This new type can achieve speeds in excess of 53 knots (98 km/h; 61 mph), the fastest of its class in the region while housing up to 12 persons in a crew.[5] Series III was designed by the Colombo Dockyard to theIsraeliShaldag Mk II design. First launch of Series III held on 27 July 1996 and it went beyond the abilities of Shaldag Mk II design by exceeding it from the speed, range and payload.[5]
The propulsion system consists of two MTU 12V 396 TE94 (1,630 kW; 2,190 hp each)diesel 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 theSuper Dvora Mk III and Shaldag Mk II.[5]
Their thrust-vectoring propulsion system allows Series III to function in shallow waters atdraughts of 1.2 m (3 ft 11 in) facilitatingspecial operations forces delivery on enemy shores and catastrophe relief missions.
36 Series III UFACs were known to be built for the SLN.[1]
The two coastal surveillance vessels built for theMaldivian Coast Guard are very similar to the Series III Ultra Fast Attack Craft. They have more range but at a lower speed of 40 knots (74 km/h; 46 mph) and no armament.[6]
Currently all Colombo-class boats have been designed to allow for the installation ofTyphoon 25-30 mm stabilized cannon which can be slaved to state-of the art mast-mounted, day and night all weather long range electro-optic systems.[7]
In addition to their main armament, they carry additional weapon systems such as20 mm Oerlikon rear autocannons,automatic grenade launchers, 7.62 mmGPMGs and 12.7 mmHMGs.
Series III gun boats comes with Elop MSIS optronic director and Typhoon GFCS as its own weapons control system. Also these crafts use surface search: Furano FR 8250 or Corden Mk 2; I-band as itsradar.
As of 2006, the main armament has been upgraded with the addition ofM242 Bushmaster 25 mm (25x137mm) chain-fed autocannons.[8]
Maldives
Sri Lanka