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AHT anchor-handling tugboat offshore support vessel


  • Type:

    AHT anchor-handling tugboat

  • Length:

    93.8 m (307' 8")

  • DWT:

    4931000 kg (10870994.15 lb)


M/V OLYMPIC HERA is a Anchor Handle Tug Supply Vessel
designed by Ulstein Design AS. The vessel is equipped with a
diesel electric hybrid configuration of power plant serving
two main shaft propellers, one retractable thruster forward,
two side tunnel thrusters forward and two aft. The vessel is
equipped, built and certified according to IMO Class II for
Dynamic Positioning, ensuring the vessel to obtain the best
station keeping capabilities in DP manoeuvering mode.

There are different combinations how the propulsion can be run:
Diesel Electric (DE) mode
Diesel mechanic (DM) mode (without shaft generator)
Hybrid mode (full power at 750 rpm, both clutches closed)
Diesel mode + Shaft generator
Main engines as generator sets + Auxiliary generators
In diesel electric mode the main shaft propellers are able to work
with 40 rpm and low power.

Main Activities
Anchor Handling Towing Winch, 500 t SWL, separate drums,
inboard cable lifters
250 t SWL Offshore Crane for handling of construction blocks
over PS ship side (dismountable type, to be mobilized)
Removable sections of PS cargo rail, 14 m length, for crane
Inspection, Maintenance and Repair (IMR)
ROV Hangar arranged for deployment of Work ROV to
starboard side
Work ROV LARS 4000 metres for Sub Sea operations
M/V OLYMPIC HERA is a environmental friendly ship in all
respects. The ship is built according to Det Norske Veritas class
Clean Design. Also, catalytic reactors for minimum NOx
emissions are installed. A Green Passport complying with IMO
ship recycling recommendations is issued.


Other ULSTEIN products

Anchor Handling Tug Supply Vessels