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Anchor Handling Tug Supply (AHTS) vessels are mainly built to handle anchors for oil rigs, tow them to location, anchor them up and, in a few cases, serve as an Emergency Rescue and Recovery Vessel (ERRV). They are also used to transport supplies to and from offshore drilling rigs.

AHTS vessels differ from Platform supply vessels (PSVs) in being fitted with winches for towing and anchor handling, having an open stern to allow the decking of anchors, and having more power to increase the bollard pull. The machinery is specifically designed for anchor handling operations. They also have arrangements for quick anchor release, which is operable from the bridge or other normally manned location in direct communication with the bridge. The reference load used in the design and testing of the towing winch is twice the static bollard pull.

Cargo tank capacities and discharge rates:
Marine diesel oil 1 960 m3
Rate 2x250m3/h
Fresh water 1 250 m3
Rate 2x250m3/h
Drill water 1 270 m3
Rate 2x250m3/h
Brine 821 m3
Rate spec.g 1.8 1x100m3/h
Liquid mud 965 m3
Rate spec.g 2.8 2x100m3/h
Special product 2x96 m3
Rate spec.g 1.8 2x100m3/h
Dry bulk 4x60 m3

Machinery:
2xMAK 4000kW / 5440 HP
2xMAK 3000kW / 4085 HP
Total of 19 050HP (14 000kW)