Our designs have been under constant development since then, and today more than 200 AHTS of Rolls-Royce design type UT have been built for operations worldwide.
The design for AHTS-vessels range from small and compact vessels to large and powerful ships. They can be fitted with the world’s largest winches from Rolls- Royce, providing tremendous pull capacity.
In-house production of winches and control systems means complete integration between a vessel's design and equipment for our customers, resulting in highly functional and advanced solutions.
Even if the AHTS-vessels are customised for anchor-handling and towing, they can also undertake, for example, ROV services, safety/rescue services and supply duties between mainland and offshore installations..
What next...
Rolls-Royce offers a broad range of anchor-handlers, from small vessels with the most up-to-date features to larger complex vessels.
UT 712 CD - Bollard Pull 150+ tonnes
![[Image] UT 712 CD - a medium-sized anchor-handling tug supply vessel with a bollard pull of 160 – 220 tonnes.](/Images/UT712CD-AHTS-450x200px_tcm92-39284.gif "[Image] UT 712 CD - a medium-sized anchor-handling tug supply vessel with a bollard pull of 160 – 220 tonnes.")
The UT 712 CD is designed with the following capabilities:
- 2 or 4 main engines (bollard pull of 160 – 220 tonnes)
- Anchor-handling and tug services
- Large winch capacity
- Safety/rescue services
- Supply services
- Oil recovery
UT 712 CD is a medium-sized anchor-handling tug supply vessel with a bollard pull of 160 – 220 tonnes, depending on engine and propulsion configuration.
The vessel is specially designed for duties on medium to deep water fields and, in addition to anchor-handling and tug duties. The vessel is also capable of operating in traditional supply duties.
UT 730 WP - Bollard Pull 220+ tonnes
![[Image] UT 730 WP is designed for the new and demanding rules and regulations for safe anchor-handling operations.](/Images/UT730WP-AHTS-450x200px_tcm92-39285.gif "[Image] UT 730 WP is designed for the new and demanding rules and regulations for safe anchor-handling operations.")
The vessel has increased winch capacity and state-of-the-art handling operability. The UT 730 WP is designed with the following capabilities:
- Bollard pull of 210 – 250 tonnes
- Anchor-handling and tug duties
- Traditional supply duties
- ROV operations
UT 730 WP is designed for the new and demanding rules and regulations for safe anchor-handling operations with enhanced focus on operability and stability.
The vessel is constructed with a hybrid engine/propulsion configuration to secure low emissions and fuel-efficient operations during all conditions.
UT 790 WP - Bollard Pull 250+ tonnes
The UT 790 WP is designed with the following capabilities:
- Anchor-handling tug (bollard pull above 250 tonnes)
- ROV services
- Subsea services
- Supply services
- Safety/rescue services
- FiFi operation
- Oil recovery
- Heave compensated lifting crane or A-frame
UT 790 WP is a large anchor-handler tug supply vessel, constructed for bollard pulls above 250 tonnes. The model is specially designed for demanding anchor-handling operations in deep waters with special attention to stability during operations.
The power distribution is based on the popular hybrid system, assuring a cost-efficient operational mode during all kinds of operations.
The vessel has either a conventional twin shaftline solution with CP propellers in nozzles or a single propeller in a nozzle and two Azipulls for additional manoeuvrability during towing operations.
The UT 790 WP is a flexible platform for offshore service operations and can also be equipped with A-frame or a large heave compensated offshore crane.
UT 759 ICE - Bollard Pull 250 tonnes
![[Image] UT 759 ICE 450x190px](/Images/UT-759-ICE-450x190px_tcm92-39400.png "[Image] UT 759 ICE 450x190px")
The UT 759 ICE is designed with the following capabilities:
- Hybrid main engines configuration
- DP 2 capabilities during ice operation
- Accommodation for 55 persons
- Anchor-handling in ice (bollard pull of 250 tonnes)
- Large bulk and cargo capacities for remote operations
- ROV operations through moonpool
- Special towing capabilities in ice
UT 759 ICE is an innovative new icebreaking anchor-handler/tug, constructed for demanding operations in arctic environments without additional assistance (Polar 15).
The vessel is capable of breaking ice up to 1,5m at a speed of 4 knots, and are constructed for icemilling and support to oilrigs and shuttle tankers operating in arctic oilfields.
