Aadesh-class patrol vessel

Aadesh-class patrol vessels are a series of twenty fast patrol vessels (FPVs) built for the Indian Coast Guard by Cochin Shipyard Limited at its shipyard in Kochi, Kerala. The ships have been designed by M/s Smart Engineering & Design Solutions (SEDS), Kochi.

ICGS Abheraj
Class overview
NameAadesh class
BuildersCochin Shipyard Limited, Kochi, India
OperatorsIndian Coast Guard
Preceded byRajshree class
Built2010-2017
In commission2013-present
Planned20
Completed20
Active20
General characteristics
TypeFast patrol vessel
Displacement298 long tons (303 t)[1]
Length50 m (164 ft 1 in)
Beam7.6 m (24 ft 11 in)
Draught1.63 m (5 ft 4 in)
Depth4.65 m (15 ft 3 in)
Propulsion
  • 3 × MTU 16V 4000 M90 engines
  • 2,720 kW (3,648 hp)
  • 3 × 120 kW (161 hp) Aux engines
  • 3 × Rolls-Royce Kamewa 71S3np water jets
SpeedOver 33 knots (61 km/h; 38 mph)
Endurance1,500 nmi (2,800 km; 1,700 mi) at 14 kn (26 km/h; 16 mph)
Boats & landing
craft carried
  • 1 × 4.7 m (15 ft 5 in) Rigid Inflatable Boat with 40 hp (30 kW) OBM
  • 1 × 6 person capacity Gemini Boat
  • LSA & FFA as per class requirement
Complement6 officers and 34 sailors
Sensors and
processing systems
  • 1 × X-Band Radar with ARPA GMDSS 400 W MF/HF
  • ECDIS, UAIS, DGPS, Gyro, Autopilot
  • INMARSAT Fleet Broadband 500
Armament1 × 30 mm (1.2 in) CRN 91 Naval Gun, Small arms and ammunition
Notes
  • Classification: A1, AMS, HSC Government Service (Coastal Service up to 250 Nm from place of shelter)
  • Reverse Osmosis Plant: 5 t per day
  • Oily Water Separator: 0.5 m3/h
  • Sanitary: Vacuum Sanitary System
  • Deck Crane: 1 t at 4.9 m
  • Anchor and Capstan: 2 x SHHP/ Electric Capstan

Design

Aadesh class vessels have a length of 50 meters, a beam of 7.6 meters, and a draught of 1.6 meters with a design speed of over 33 knots.[2] They are powered by Rolls-Royce Power Systems-supplied triple type 16V 4000 M90 engines with an output of 2,720kW (3,648BHP) at 2,100 rpm, coupled with ZF 7600 gearboxes and propelled by triple Rolls-Royce Kamewa 71S3NP water jets.[3][4] This enables the vessels to operate in shallow waters and offers higher speeds and better maneuverability than conventional propellers. The MTU 'Callosum' ship automation system monitors the ship's services that also incorporates fire detection and extinguishing systems. The navigation package was supplied by Northrop Grumman and includes multi-function displays, electronic chart display and information system (ECDIS), autopilot, magnetic compass, and the NAVIGAT 3000 fiber optic gyro-compass.

The vessels are equipped with a long-range gun and modern vessel control, navigation, and communication tools. They are capable of 7 days' continuous deployment at sea without replenishing supplies. These FPVs are small in size when compared to other large vessels that Cochin Shipyard has built. Extensive use of aluminum in the superstructure was made to reduce weight, and Cochin Shipyard has developed special techniques to ensure high-quality welding and fabrication of aluminum structures. All the vessels delivered achieved speeds in excess of the contracted speed during sea trials and surpassed the expectations of the Indian Coast Guard with regard to the performance requirements.

The primary roles of the vessel include fisheries protection and monitoring, patrol within India's exclusive economic zone, coastal patrol, anti-smuggling, anti piracy, and search and rescue operations. The vessels also have a secondary role of providing communication link and escorting convoys during hostilities and wartime.[5]

Ships of the class

Aadesh, the first vessel of the series, was launched on 9 January 2013 by Jayasree Muralidharan, in the presence of her husband, Vice Admiral M P Muralidharan, Director General of the Indian Coast Guard. Aadesh was delivered to the Coast Guard after successful completion of all its trials on 25 September 2013. It has been operated from the Coast Guard station at Tuticorin in Tamil Nadu.[5]

The second vessel, named Abheek, was launched by on 21 March 2013. For the launch, the FPV was placed on specially-designed cradles and transported over the entire length of the Indigenous Aircraft Carrier that was located at the building dock before being lowered into the waters.[6]

The third vessel, Abhinav, was launched on 28 May 2013.[7] The fourth vessel, Abhiraj, was launched on 30 September 2013 and is expected to join the Tuticorin ICG station.[8] The fifth and sixth Fast Patrol Vessels were launched on 2 December 2013 and were named Achook and Agrim in the launching ceremony. Achook was handed over to the Coast Guard on 28 March 2014.[9]

Operational history

Ships in class
Yard NumberName Pennant NumberLaunchedCommissionedHome Port
501Aadesh 2369 January 2013[10]13 December 2013[11][12]Tuticorin
502Abheek 23721 March 201331 December 2013[13][14]Chennai
503Abhinav 23828 May 2013[15]15 January 2014[16][17]Kochi
504Abheraj 23930 September 2013[18]2 September 2014[19]Tuticorin
505Achook 24029 November 2013[20]7 June 2014[21]Mumbai
506Agrim 24129 November 2013[20]7 June 2014[21]Mumbai
507Amal 242-18 July 2014[22]Goa
508Amartya 24329 March 2014[23]19 October 2014[24]New Mangalore
509Ameya 2445 June 2014[25]19 January 2015[26]Karaikal
510Amogh 2455 August 2014[27]19 January 2015[26]Paradip
511Anagh 24630 September 2014[28]29 March 2015[29]Chennai
512Ankit 24728 November 2014[30]14 May 2015[31]Porbandar
513Anmol 24817 January 2015[32]15 October 2015[33]Haldia
514Apoorva 24926 February 2015[34][35]21 September 2015Goa
515Arinjay 25022 April 2015[36]12 October 2015[37]Okha-Gujarat
516Arnvesh 25110 June 2015[38]22 March 2016[39][40]Visakhapatnam
517Arush 25230 July 2015[41]26 May 2016[42]Porbandar[43]
518Aryaman 253 29 September 2015[44]21 November 2016[45]Kochi
519Atulya 254 7 December 2015[46]21 November 2016[45]Visakhapatnam[45] port change to Thoothukudi in mid April 2021.
520Ayush 255 29 January 2016[47]18 February 2017[48]Krishnapatnam[49]

See also

References
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