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PATROL SHIP [WPS]—Mauritius

1 Vigilant class
Bldr: ASMAR, Talcahuano, Chile

21 Vigilant

Laid down 7-94 Launched 6-12-95 In service 10-5-96

D: 1,350 tons (1,650 fl) S: 18 kts
Dim: 75.00 (70.50 wl; 67.50 pp) × 14.00 × 3.90
A: 1 twin 40-mm 60-cal. Mk 5 Bofors AA; 2 single 12.7-mm M2 mg; 1 AS.350B Écureuil helicopter

Electronics: Radar: 2 Kelvin-Hughes . . . nav.
M: 4 Caterpillar 3516 diesels; 2 CP props; 11,780 bhp—670-shp azimuthal bow-thruster
Electric: 1,625 kw tot. (3 × 500 kw, Caterpillar 3412 diesels driving; 1 × 125 kw, Caterpillar 3306 diesel driving; all 380 V, 50 Hz)
Range: 8,000/19 Endurance: 30 days

Crew: 8 officers, 45 enlisted + 2 aircrew + 20 passengers or 100 survivors

Remarks: Ordered in spring 1994 for $14.6 million, with an option for a second and plans for a possible additional two; constructed in cooperation with Western Canada Marine Group. No further order has been placed as of 2003, however. Designed by Polar Associates, Canada. Intended for fisheries and economic exclusion zone patrol, search-and-rescue duties, pollution control, and emergency towing. A half-sister was built in Ireland for the Irish Navy in 1998–99. Refitted at Mumbai Naval Dockyard, India, from 12-99 to 11-4-00 to correct propeller shaft problems and other engineering deficiencies; shaft seals were again repaired at Mumbai from 3-01 to 9-01.

Hull systems: Has a deep-vee hullform with twin rudders and a signature-reduction superstructure shape to reduce radar signature when ship is coming toward the radar. There are a hangar and flight deck for one small helicopter, although the hangar is said to be cramped. Two fire monitors are fitted atop the hangar, with a single 600-m3/hr firepump. Has a Flume-type stabilization system and a four-berth sick bay. Was originally intended to achieve 22 kts but can reach only 18.

Combat systems: The 40-mm gunmount was donated by India and is locally controlled.