IRS-class tugboat: Difference between revisions

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{{Use dmy dates|date=July 2019}}
{{Use dmy dates|date=July 2019}}
{{Use Indian English|date=July 2019}}
{{Use Indian English|date=July 2019}}
{|{{Infobox ship begin|sclass=2}}
{{Infobox ship
{{Infobox ship image
|sclass=2
|Ship image=
|section1={{Infobox ship/image
|Ship caption=
|image=
|image_caption=
}}
 
|section2={{Infobox ship/class overview
|builders= Hindustan Shipyard Limited
|operators= {{navy|India}}
|class_before=
|class_after=
|subclasses=
|built_range= 3
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|total_ships_active= 4
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|total_ships_retired=
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|section3={{Infobox ship/characteristics
|hide_header=
|header_caption=
|type= 50T bollard pull tugboat
|displacement= 472 tons
|length= {{convert|34.54|m|ftin|abbr=on}}
|beam= {{convert|11.26|m|ftin|abbr=on}}
|draught= {{convert|4.49|m|ftin|abbr=on}}
|propulsion=  2 x [[Wartsila]] Italia Spa Type W8L26 engines generating 2.4 MW power to drive [[Voith Schneider]] propulsion unit
|speed= {{convert|13.5|kn}}
|range=
|complement= 13
}}
}}
}}
{{Infobox ship class overview
|Builders= Hindustan Shipyard Limited
|Operators= {{navy|India}}
|Class before=
|Class after=
|Subclasses=
|Built range= 3
|In commission range=
|Total ships building=
|Total ships planned= 3 + 4
|Total ships completed= 4
|Total ships cancelled=
|Total ships active= 4
|Total ships laid up=
|Total ships lost=
|Total ships retired=
|Total ships preserved=
}}
{{Infobox ship characteristics
|Hide header=
|Header caption=
|Ship type= 50T bollard pull tugboat
|Ship displacement= 472 tons
|Ship length= {{convert|34.54|m|ftin|abbr=on}}
|Ship beam= {{convert|11.26|m|ftin|abbr=on}}
|Ship draught= {{convert|4.49|m|ftin|abbr=on}}
|Ship draft=
|Ship propulsion=  2 x [[Wartsila]] Italia Spa Type W8L26 engines generating 2.4 MW power to drive [[Voith Schneider]] propulsion unit
|Ship speed= {{convert|13.5|kn}}
|Ship range=
|Ship complement= 13
|Ship sensors=
|Ship EW=
|Ship armament=
|Ship armour=
|Ship armor=
|Ship aircraft=
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|}


The '''IRS class''' of [[tugboat]]s are a series of [[Bollard pull]] tugboats built by [[Hindustan Shipyard Limited]], [[Visakhapatnam]], for the [[Indian Navy]].
The '''IRS class''' of [[tugboat]]s are a series of [[Bollard pull]] tugboats built by [[Hindustan Shipyard Limited]], [[Visakhapatnam]], for the [[Indian Navy]].


INS ''Sahas'' and INS ''Dhiraj'' tugs were flagged off by Commander (retd) K.S. Subramanian, the Director (shipbuilding) and INS ''Himmat'' was flagged off by Rear Admiral (Retd) N K Mishra, NM Chairman & Managing Director of HSL. The vessels were built under special survey of IRS Steel ship rules and as such were assigned with IRS class notation.<ref>{{Cite web|title=HSL delivers 2 tugs to Navy|url=http://www.transreporter.com/logisticsnews/21315/HSL-delivers-2-tugs-to-Navy/}}</ref><ref>{{Cite web|title=HSL delivers 50T BP Tug to Indian Navy|url=http://www.irclass.org/media-and-publications/news/hsl-delivers-50t-bp-tug-to-indian-navy/}}</ref> Contracts for 4 additional similar tugboats were signed between HSL and Indian Navy in November 2019. The keel of the first two tugboats ''Veeran'' and ''Balaram'' were laid on November 15, 2019. <ref>{{Cite web|title=Keel-laying ceremony for two vessels at HSL|url=https://timesofindia.indiatimes.com/city/vijayawada/keel-laying-ceremony-for-two-vessels-at-hsl/articleshow/72077972.cms}}</ref> The new tugboats are to be stationed at [[Visakhapatnam]], the future home base of {{INS|Vikrant|2013|6}} to handle the aircraft carrier once it is commissioned into Indian Navy in 2022. <ref>{{Cite web|title=HSL DELIVERS 50T BP TUG TO INDIAN NAVY|url=http://www.indiandefensenews.in/2021/10/hsl-delivers-50t-bp-tug-to-indian-navy.html}}</ref> <ref>{{Cite web|title=Keels laid for 50 tonne bollard pull tugs at HSL|url=https://viscan.in/keels-laid-for-50-tonne-bollard-pull-tugs-at-hsl/}}</ref>
INS ''Sahas'' and INS ''Dhiraj'' tugs were flagged off by Commander (retd) K.S. Subramanian, the Director (shipbuilding) and INS ''Himmat'' was flagged off by Rear Admiral (Retd) N K Mishra, NM Chairman & Managing Director of HSL. The vessels were built under special survey of IRS Steel ship rules and as such were assigned with IRS class notation.<ref>{{Cite web|title=HSL delivers 2 tugs to Navy|url=http://www.transreporter.com/logisticsnews/21315/HSL-delivers-2-tugs-to-Navy/}}{{Dead link|date=August 2024 |bot=InternetArchiveBot |fix-attempted=yes }}</ref><ref>{{Cite web|title=HSL delivers 50T BP Tug to Indian Navy|url=http://www.irclass.org/media-and-publications/news/hsl-delivers-50t-bp-tug-to-indian-navy/}}</ref> Contracts for 4 additional similar tugboats were signed between HSL and Indian Navy in November 2019. The keel of the first two tugboats ''Veeran'' and ''Balaram'' were laid on November 15, 2019.<ref>{{Cite news|title=Keel-laying ceremony for two vessels at HSL|website=[[The Times of India]] |date=16 November 2019 |url=https://timesofindia.indiatimes.com/city/vijayawada/keel-laying-ceremony-for-two-vessels-at-hsl/articleshow/72077972.cms}}</ref> The new tugboats are to be stationed at [[Visakhapatnam]], the future home base of {{INS|Vikrant|2013|6}} to handle the aircraft carrier once it is commissioned into Indian Navy in 2022.<ref>{{Cite web|title=HSL DELIVERS 50T BP TUG TO INDIAN NAVY|url=http://www.indiandefensenews.in/2021/10/hsl-delivers-50t-bp-tug-to-indian-navy.html}}</ref><ref>{{Cite web|title=Keels laid for 50 tonne bollard pull tugs at HSL|url=https://viscan.in/keels-laid-for-50-tonne-bollard-pull-tugs-at-hsl/|access-date=2 November 2021|archive-date=2 November 2021|archive-url=https://web.archive.org/web/20211102220425/https://viscan.in/keels-laid-for-50-tonne-bollard-pull-tugs-at-hsl/|url-status=dead}}</ref>


==Specifications==
==Specifications==
Each of these tugboats can achieve {{convert|13.5|kn|lk=in}} against a design speed of {{convert|12|kn}} at 85% maximum continuous rating.  Bollard pull of all the vessels is in excess of 54 tonnes almost 10% in excess of specifications.<ref>{{Cite web|title=HSL delivers 50T BP Tug to Indian Navy|url=http://www.irclass.org/media-and-publications/news/hsl-delivers-50t-bp-tug-to-indian-navy/}}</ref><ref>{{Cite web|title=HSL delivers 2 tugs to Navy|url=http://www.transreporter.com/logisticsnews/21315/HSL-delivers-2-tugs-to-Navy/}}</ref>
Each of these tugboats can achieve {{convert|13.5|kn|lk=in}} against a design speed of {{convert|12|kn}} at 85% maximum continuous rating.  Bollard pull of all the vessels is in excess of 54 tonnes almost 10% in excess of specifications.<ref>{{Cite web|title=HSL delivers 50T BP Tug to Indian Navy|url=http://www.irclass.org/media-and-publications/news/hsl-delivers-50t-bp-tug-to-indian-navy/}}</ref><ref>{{Cite web|title=HSL delivers 2 tugs to Navy|url=http://www.transreporter.com/logisticsnews/21315/HSL-delivers-2-tugs-to-Navy/}}{{Dead link|date=August 2024 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>


==Service history==
==Service history==
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{{Ship classes of the Indian Navy}}
{{Ship classes of the Indian Navy}}


[[Category:Ships of the Indian Navy| ]]
[[Category:Auxiliary ships of the Indian Navy]]
[[Category:Tugs of the Indian Navy]]
[[Category:Tugs of the Indian Navy]]
[[Category:Auxiliary tugboat classes]]
[[Category:Auxiliary tugboat classes]]

Latest revision as of 21:57, 3 January 2026

Template:Infobox ship

The IRS class of tugboats are a series of Bollard pull tugboats built by Hindustan Shipyard Limited, Visakhapatnam, for the Indian Navy.

INS Sahas and INS Dhiraj tugs were flagged off by Commander (retd) K.S. Subramanian, the Director (shipbuilding) and INS Himmat was flagged off by Rear Admiral (Retd) N K Mishra, NM Chairman & Managing Director of HSL. The vessels were built under special survey of IRS Steel ship rules and as such were assigned with IRS class notation.[1][2] Contracts for 4 additional similar tugboats were signed between HSL and Indian Navy in November 2019. The keel of the first two tugboats Veeran and Balaram were laid on November 15, 2019.[3] The new tugboats are to be stationed at Visakhapatnam, the future home base of INS Vikrant to handle the aircraft carrier once it is commissioned into Indian Navy in 2022.[4][5]

Specifications[edit | edit source]

Each of these tugboats can achieve 13.5 knots (25.0 km/h; 15.5 mph) against a design speed of 12 knots (22 km/h; 14 mph) at 85% maximum continuous rating. Bollard pull of all the vessels is in excess of 54 tonnes almost 10% in excess of specifications.[6][7]

Service history[edit | edit source]

INS Himmat, INS Sahas and INS Dhiraj serve with the Western Naval Command at Karwar. These vessels are primarily meant to handle the aircraft carrier INS Vikramaditya which is based in Karwar since early 2014.[8]

Boats in the class[edit | edit source]

Name Pennant No. Date of Launch Date of Commission Homeport Status
INS Himmat 11162 03-08-2013 31-03-2014 Karwar Active [9]
INS Dhiraj 11163 03-08-2013 24-12-2013 Karwar Active
INS Sahas 11164 03-08-2013 24-12-2013 Karwar Active
INS Veeran 11193 19-03-2020 22-10-2021 Visakhapatnam Active
INS Balaram 19-03-2020 Visakhapatnam

See also[edit | edit source]

References[edit | edit source]

  1. ↑ "HSL delivers 2 tugs to Navy".[permanent dead link]
  2. ↑ "HSL delivers 50T BP Tug to Indian Navy".
  3. ↑ "Keel-laying ceremony for two vessels at HSL". The Times of India. 16 November 2019.
  4. ↑ "HSL DELIVERS 50T BP TUG TO INDIAN NAVY".
  5. ↑ "Keels laid for 50 tonne bollard pull tugs at HSL". Archived from the original on 2 November 2021. Retrieved 2 November 2021.
  6. ↑ "HSL delivers 50T BP Tug to Indian Navy".
  7. ↑ "HSL delivers 2 tugs to Navy".[permanent dead link]
  8. ↑ "Hind Shipyard delivers 2 tugs to Navy - classed with IRS".
  9. ↑ "64_AR_2015-16.pdf" (PDF).
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