Design 1233 (Offshore tugboat with 60 tonnes pulling power)
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Hull length maximal, m 33,00
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Hull width max., m 12,10
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Side height at midships from the base lline, m 5,63
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Draft from the base lline, m 3,70
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Overall draft, m 4,60
![](https://imt.design/wp-content/uploads/2023/08/1233-001-1024x651.jpg)
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Pulling force, t 60
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Side drag of the tugboat during escort, t 70
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Main engine power, kW 2 х 1865
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Forward speed, knots. 10
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Autonomy, days. 10
(in terms of fuel reserves)
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Range of navigation, miles 3000
(in terms of fuel reserves)
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Crew, persons. 10
Architectural and structural type of the vessel – steel, single-hulled, welded, twin-screw (2 full-turn propeller steering columns), diesel-powered, single-deck, with redundant overwater side, aft location of the engine room, with round-view wheelhouse. A towing tack, stern winch, stern towing fairlead, stern and inboard bittens provide towing of ships and floating structures in the open sea. The bow double-drum winch and bow double-keel beatenges provide for ship escorting (rolling) at roadsteads and in ports, as well as for escorting ships. The vessel is equipped with a system for fighting fires on other vessels and port facilities, and with rescue equipment.
- towing of non-self-propelled vessels and floating structures;
- guiding and coiling of vessels in the water area of ports and berthing;
- escort operations at speeds up to 10 knots;
- rescue operations;
- fighting fires on ships (except gas and chemical carriers) and port facilities with water or foam of low multiplicity;
- navigation in ice conditions (ice reinforcement category mark Arc4).
Navigation area limited R2 – navigation in sea areas in swell with a wave height of 3 per cent secured 7.0 m, with a distance from the place of refuge not more than 100 miles and with a permissible distance between places of refuge not more than 200 miles. In the summer-autumn navigation period in the Arctic navigation in thin annual ice up to 0.8 m thick. In the winter-spring navigation period in the Arctic, navigation in thin annual ice up to 0.6 m thick. Year-round navigation in freezing non-Arctic seas in light ice conditions.
The vessel complies with the requirements of the RS Rules, escort capabilities comply with DNV requirements for escort tugs, international Conventions. Sanitary Regulations and safety requirements.
- КМ
- Arc4 R2 AUT1 FF3WS Escort Tug
One vessel of this design has been built