| 4600z AHTS
next generation 80T bollard pull ahts/mpsv
Our collaborative effort has resulted in an 80-ton bollard pull AHTS/MPSV meticulously designed for offshore use. This vessel has a unique and highly efficient Twin Fin Propulsion system with a diesel-electric configuration that paves the way for significant fuel savings and a notable decrease in CO2 emissions.
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L.O. A. ____________ 69.50 m
Beam ____________ 16.80 m
Depth Moulded ____________ 6.50 m
Design Draft ____________ 5.20 m
Clear Deck Area ____________ 500 m2
Deck Load Bearing ____________ 5 t/m2
Deck Capacity ____________ 450 t
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01. Harbour/ Anchored Battery power can be used for up to 6 hours continuously
02. Berthing Manoeuvring 80 minutes
03. Emergency Evacuation Evacuates up to 9 Nm range safely.
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Certified Bollard Pull __________ 80 t
Design Speed __________ 13 knots
Service Speed __________ 10 knots
Economic Speed __________ 8 knots
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Generator(s) : 4x of 1300 ekW (each)
Emergency / Motor Generator. : 1x 99 ekW
Tunnel Thruster : 2x Bow, 7.5 t | 2x Stern, 5 t
Propulsion : 2x CP Propeller in nozzles
Twin Fin configuration with
Diesel electric propulsion : 2x Variable speed drives liquid cooled, AFE type
Rudder 2x High lift rudder
Fuel Type MGO
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CLASSIFICATION ABS, +A1, OFFSHORE SUPPORT VESSEL (AH, TOW, SUPPLY),(E) , S, FFV 1, +AMS, FFV 1, DP2
Twin Fin Hull
The hull design was improved by incorporating a TwinFin arrangement, which was specifically designed to maximise the flow of water to the propellers. This enhancement significantly increased the vessel's overall efficiency.
The vessel's superior performance is evident in its ability to maintain a service speed of 10 knots and a loitering speed of 6 knots while requiring 25% less propulsion power at service speed and 30% less propulsion power at loitering speed than similar vessels.
This results in a 25% reduction in fuel consumption (equivalent to lower CO2 emissions) compared to a standard 80-ton bollard pull Azimuth-driven AHTS/MPSV under specific operating conditions.
