ABEKING & RASMUSSEN
India to build OPV for Mauritius
The Mauritius National Coast Guard expects to take delivery of a new offshore patrol vessel (OPV) from Indian shipyard Garden Reach Shipbuilders and Engineers Ltd (GRSE) by the third quarter of 2014. This ship will replace another 74m OPV, Vigilant, which is no longer in service due to persistent shafting related issues. Discussions for the OPV acquisition from India began as far back as 2007. An inter-governmental agreement was reached on 3 July 2010 between the Mauritius and Indian governments. The contract for the OPVs, valued at US$58.5 million, took place on 4 March 2011 between the Mauritius Government and GRSE. The OPV has been partially funded by the Indian government which is providing US$10 million as a one-time grant towards the purchase. The remaining US$48.5million will be extended under a Line of Credit through the EXIM Bank of India to the Mauritius Government. The 74.1m OPV is based on the Indian Coast Guard’s 74 m-long 1220tonne Vikram class OPV. Several of these were built in the early 1980s and 1990s at two Indian yards, Mazagon Docks and, later, at Goa Shipyard. The basic design is no longer ‘state-of-the art’ although it is likely that modern features will be incorporated. Other details of this design are a length between particulars (LBP) of 69.0m, a beam of 11.4m and a design draft of around 3.2m. The hull has a depth up to the main deck of 7.9m, a transversal spacing of 1200-1800mm and a longitudinal spacing of 480mm. The hull and superstructure is to be constructed of at least 12 blocks, the heaviest of which weigh around 60-75tonnes. Clearly, construction time would have been significantly reduced if large pre-outfitted hull block construction method were to be used. The OPV will be powered by two MTU 20V4000M
93L diesels, each developing 5766hp driving two controllable pitch propellers, providing an estimated speed of around 22knots. The vessel will have a range of in excess of 5000nm. The OPV will have a complement of around 60 as well as accommodation for 30 passengers. According to the Mauritius Government, the OPV is to be fitted with a close-range naval gun along with a fire control system. This is most likely to be the Indian CRN-91 gun mount that uses a Russian BMP-2 turret fitted with the 30mm 2A42 cannon and the Indian-developed EON-51 electro-optical system. The OPV will also embark a light helicopter and a rigid- hull inflatable. Apart from patrolling the country’s Exclusive Economic Zone, the new OPV will also be utilised for maritime security operations such as anti-piracy, anti- narcotics, countering illegal fishing as well as to provide logistic support to the outer islands of Mauritius.
Warship Technology July/August 2011
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