IRS-class tugboat
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The IRS class of tugboats are a series of Bollard pull tugboats built by Hindustan Shipyard Limited, Visakhapatnam, for the Indian Navy.
Class overview | |
---|---|
Builders | Hindustan Shipyard Limited |
Operators | ![]() |
Built | 3 |
Planned | 3 + 4 |
Completed | 4 |
Active | 4 |
General characteristics | |
Type | 50T bollard pull tugboat |
Displacement | 472 tons |
Length | 34.54 m (113 ft 4 in) |
Beam | 11.26 m (36 ft 11 in) |
Draught | 4.49 m (14 ft 9 in) |
Propulsion | 2 x Wartsila Italia Spa Type W8L26 engines generating 2.4 MW power to drive Voith Schneider propulsion unit |
Speed | 13.5 knots (25.0 km/h; 15.5 mph) |
Complement | 13 |
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]