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{{Use dmy dates|date=July | {{Use dmy dates|date=July 2022}} | ||
{{Use Indian English|date=July | {{Use Indian English|date=July 2022}} | ||
{|{{Infobox ship begin}} | {|{{Infobox ship begin|sclass=2}} | ||
{{Infobox | {{Infobox ship image | ||
|Ship image= | |Ship image= | ||
|Ship caption= | |Ship caption= | ||
}} | }} | ||
{{Infobox | {{Infobox ship class overview | ||
|Builders= Hindustan Shipyard Limited | |Builders= Hindustan Shipyard Limited | ||
|Operators= {{navy| | |Operators= {{navy|India}} | ||
|Class before= | |Class before= | ||
|Class after= | |Class after= | ||
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|In commission range= | |In commission range= | ||
|Total ships building= | |Total ships building= | ||
|Total ships planned= 3 | |Total ships planned= 3 + 4 | ||
|Total ships completed= | |Total ships completed= 4 | ||
|Total ships cancelled= | |Total ships cancelled= | ||
|Total ships active= | |Total ships active= 4 | ||
|Total ships laid up= | |Total ships laid up= | ||
|Total ships lost= | |Total ships lost= | ||
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|Total ships preserved= | |Total ships preserved= | ||
}} | }} | ||
{{Infobox | {{Infobox ship characteristics | ||
|Hide header= | |Hide header= | ||
|Header caption= | |Header caption= | ||
|Ship type= 50T | |Ship type= 50T bollard pull tugboat | ||
|Ship displacement= 472 tons | |Ship displacement= 472 tons | ||
|Ship length= {{convert|34.54|m| | |Ship length= {{convert|34.54|m|ftin|abbr=on}} | ||
|Ship beam= {{convert|11.26|m| | |Ship beam= {{convert|11.26|m|ftin|abbr=on}} | ||
|Ship draught= {{convert|4.49|m| | |Ship draught= {{convert|4.49|m|ftin|abbr=on}} | ||
|Ship draft= | |Ship draft= | ||
|Ship propulsion= 2 x [[Wartsila]] Italia Spa Type W8L26 engines generating 2.4 MW power to drive [[Voith Schneider]] propulsion unit | |Ship propulsion= 2 x [[Wartsila]] Italia Spa Type W8L26 engines generating 2.4 MW power to drive [[Voith Schneider]] propulsion unit | ||
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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]]. | |||
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> | 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> | ||
==Specifications== | ==Specifications== | ||
Each of these tugboats can achieve 13.5 | 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> | ||
==Service history== | ==Service history== | ||
INS ''Himmat'', INS ''Sahas'' and INS ''Dhiraj'' serve with the [[Western Naval Command]] at [[Karwar]]. These vessels are primarily meant to handle [[ | 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.<ref>{{Cite web|title=Hind Shipyard delivers 2 tugs to Navy - classed with IRS|url=http://www.irclass.org/media-and-publications/news/hind-shipyard-delivers-2-tugs-to-navy-classed-with-irs/}}</ref> | ||
==Boats in the class== | ==Boats in the class== | ||
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!Name !! Pennant No. !! Date of Launch !! Date of Commission !! Homeport !! Status | !Name !! Pennant No. !! Date of Launch !! Date of Commission !! Homeport !! Status | ||
|- | |- | ||
| INS Himmat|| 11162 || 03-08-2013 ||31-03-2014||[[Karwar]]|| Active <ref>{{Cite web|title=64_AR_2015-16.pdf|url=http://www.hslvizag.in/WriteReadData/userfiles/file/AnnualReports/64_AR_2015-16.pdf}}</ref> | | INS ''Himmat''|| 11162 || 03-08-2013 ||31-03-2014||[[Karwar]]|| Active <ref>{{Cite web|title=64_AR_2015-16.pdf|url=http://www.hslvizag.in/WriteReadData/userfiles/file/AnnualReports/64_AR_2015-16.pdf}}</ref> | ||
|- | |- | ||
|INS Dhiraj ||11163 || 03-08-2013 ||24-12-2013||[[Karwar]]|| Active | |INS ''Dhiraj'' ||11163 || 03-08-2013 ||24-12-2013||[[Karwar]]|| Active | ||
|- | |- | ||
|INS Sahas ||11164 || 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]]|| | |||
|- | |- | ||
|} | |} | ||
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==References== | ==References== | ||
{{Reflist}} | {{Reflist}} | ||
{{Ship classes of the Indian Navy}} | {{Ship classes of the Indian Navy}} | ||
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[[Category:Tugs of the Indian Navy]] | [[Category:Tugs of the Indian Navy]] | ||
[[Category:Auxiliary tugboat classes]] | [[Category:Auxiliary tugboat classes]] | ||