Anchor Handling Tugs

An Anchor Handling Tug (AHT) is a type of vessel used mainly in the offshore oil and gas industry for the towing and handling of heavy equipment such as drilling rigs, production platforms, and other offshore structures. AHTs are designed to operate in harsh weather conditions and have powerful engines and winches for the safe and efficient handling of heavy loads.

Size and Capacity

Anchor Handling Tugs come in various sizes, ranging from small vessels of around 30 meters in length to larger vessels of over 100 meters in length. The typical deadweight tonnage (DWT) of an AHT ranges from 1000 to 8000 tonnes. The cargo capacity of an AHT varies depending on its size and design, but it can range from a few hundred tonnes to several thousand tonnes. The maximum draft of an AHT is typically around 7 meters, which allows it to operate in shallow waters.

Speed and Maneuverability

AHTs are designed for high maneuverability and good seakeeping performance, which allows them to operate safely and efficiently in rough seas. They typically have a top speed of around 14-15 knots, which allows them to quickly respond to emergency situations and tow or move heavy equipment as required.

Shipbuilders and Countries of Origin

There are several shipyards around the world that specialize in the construction of Anchor Handling Tugs, including:

• Ulstein Verft (Norway)
• Keppel Singmarine (Singapore)
• Maersk Supply Service (Denmark)
• Hyundai Heavy Industries (South Korea)
• Remontowa Shipbuilding (Poland)

These shipyards have extensive experience in building AHTs and use advanced engineering and construction techniques to ensure that these vessels meet the high safety and performance standards required for offshore operations.

Number of Active Vessels

As of 2023, there are several hundred Anchor Handling Tugs in operation around the world, with many more under construction or on order. The exact number of active vessels can vary depending on market conditions and demand for offshore services.