Makar-class survey catamaran

	INS Makar
Class overview
Name	Makar-class survey catamaran
Builders	Alcock Ashdown Gujarat Ltd
Operators	Indian Navy
Cost	₹800 crore (US$96 million)
Planned	6
Building	5
Completed	1
Active	1
Laid up	5
General characteristics
Type	Catamaran
Displacement	500 tons
Length	53.15 m (174.4 ft)
Beam	16.0 m (52.5 ft)
Draught	2.2 m (7.2 ft)
Depth	4.5 m (15 ft)
Installed power	4 × 1,007 kW Cummins KTA 38M2
Propulsion	Two bow thrusters
Speed	Cruising speed: 12 knots (22 km/h; 14 mph); Maximum speed: 18 knots (33 km/h; 21 mph);
Range	3,000 nautical miles (5,600 km; 3,500 mi) at economic cruising
Boats & landing ; craft carried	Carries two motor boats, also carries Autonomous Underwater Vehicles (AUVs) and Remotely Operated Vehicles (ROVs)
Complement	6 officers and 44 sailors, and 6 scientists
Sensors and ; processing systems	Advanced Electronic Positioning System, Multi-beam Swath Sounding Systems and Sub-Bottom Profiler. Equipped with modern oceanographic and land survey equipment.

The Makar-class survey catamarans are a series of six 500 ton steel hull/aluminium superstructure Hydrographic Survey Catamarans being built by Alcock Ashdown (Gujarat) Ltd at its Bhavnagar shipyard for the Indian Navy. The ships are designed by an Australian naval architecture firm Sea Transport Solutions, which is based on Queensland's Gold Coast.

Description

The ships are intended to undertake coastal hydrographic survey, required for production of nautical charts and publications aimed at improving navigation through waters closer to coasts. The ships are also capable of limited coastal defence role in an emergency, limited search and rescue and limited ocean research. The ships are equipped with standard hydrographic survey equipment such as advanced electronic positioning system, multi-beam swath sounding systems and sub-bottom profiler. The ships also carry two survey motor boats along with Kongsberg Maritime's Hugin 1000 Autonomous underwater vehicle (AUV) for closer investigations.^[1]

The catamarans are propelled by four Cummins engines as well as two bow thrusters. The entire propulsion, navigational and power management packages of the vessels are integrated in a L&T supplied single state-of-art integrated platform management system. The ship is also equipped with sophisticated Integrated Bridge System from L&T. The ships have ergonomic accommodation for the six officers and 44 sailors.^[1]

Construction

Alcock Ashdown (Gujarat) Ltd was awarded this contract, worth ₹800 crore (US$96 million)^[2] on 28 December 2006 through open competitive bidding, beating others like Larsen & Toubro, ABG Shipyard and Garden Reach Shipbuilders & Engineers. As per original term of contract, the first vessel was to be delivered by 6 April 2009, while the remaining five vessels were to be delivered within a year from 6 July 2009. This was later rescheduled, the revised delivery period of vessels is from September 2011 to March 2013.^{[citation needed]} The INS Meen, is under construction. The remaining four are awaiting administrative clarification.^[6]

Ships of the class

Name	Pennant	Laid down	Launched	Commissioning	Homeport	Notes
INS Makar	J 31	2008	February 2010	21 September 2012	Karwar	^[7]
INS Meen	J 32	2009	2 March 2010			^[2]
INS Mithun						^[8]
INS Mesh						^[8]
INS Mahika						^[8]
INS Mayank						^[8]

References

^ ^a ^b ^c ^d ^e ^f "Indigenously Built INS Makar Commissioned into Indian Navy". Indian Navy. Archived from the original on 16 August 2013. Retrieved 15 December 2013. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
^ ^a ^b ^c "Gujarat builds 1st survey catamarans for Indian navy". DNA India. 3 March 2010. Retrieved 15 December 2013.
^ ^a ^b ^c ^d "Vessels Under Execution - Survey Vessel, Indian Navy". Alcock Shipyard. Archived from the original on 15 December 2013. Retrieved 1 September 2013. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
^ ^a ^b "Alcock Ashdown Gujarat Ltd develops first Survey Catamarans for Indian navy". Gujarat Money. 4 March 2010. Retrieved 15 December 2013.
^ "Indigenously Built INS Makar Commissioned into Indian Navy". Indian Navy. Archived from the original on 16 August 2013. Retrieved 1 September 2013. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
^ http://bcshippingnews.com/ships-shipyards/makar-class-survey-catamaran-indian-navy
^ "Hydrographic survey vessel commissioned". The Hindu. 22 September 2012. Retrieved 1 September 2013.
^ ^a ^b ^c ^d "Navy's project for high-tech vessels sets sail after delay". dailymail.co.uk. Retrieved 18 July 2016.

External links

[in15d-1] ^ ^a ^b ^c ^d ^e ^f "Indigenously Built INS Makar Commissioned into Indian Navy". Indian Navy. Archived from the original on 16 August 2013. Retrieved 15 December 2013. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)

[dnai3m-2] "Gujarat builds 1st survey catamarans for Indian navy". DNA India. 3 March 2010. Retrieved 15 December 2013.

[alcockshipyard-3] "Vessels Under Execution - Survey Vessel, Indian Navy". Alcock Shipyard. Archived from the original on 15 December 2013. Retrieved 1 September 2013. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)

[gm4m-4] "Alcock Ashdown Gujarat Ltd develops first Survey Catamarans for Indian navy". Gujarat Money. 4 March 2010. Retrieved 15 December 2013.

[indiannavy-5] "Indigenously Built INS Makar Commissioned into Indian Navy". Indian Navy. Archived from the original on 16 August 2013. Retrieved 1 September 2013. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)

[6] ttp://bcshippingnews.com/ships-shipyards/makar-class-survey-catamaran-indian-navy

[thehindu-7] "Hydrographic survey vessel commissioned". The Hindu. 22 September 2012. Retrieved 1 September 2013.

[dailymail.co.uk-8] "Navy's project for high-tech vessels sets sail after delay". dailymail.co.uk. Retrieved 18 July 2016.

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