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OSV

A Offshore supply vessel (often abbreviated as OSV) is specially designed to supply offshore oil platforms. These vessels range from 20 to 100 meters in length and accomplish a variety of tasks. The primary function for most of these vessels is transportation of goods and personnel to and from offshore oil platforms and other offshore structures.

Dynamic positioning capability has become the norm for today’s Offshore Supply Vessels.  Thrustmaster tunnel and azimuth thrusters are used by all major operators, including Tidewater, Seacor, Edison Chouest, Trico and Seabulk. In the recent years a new generation of Offshore Supply Vessels entered the market, usually equipped with Class 1 or Class 2 Dynamic Positioning Systems.

For new vessel applications, diesel-electric propulsion systems are very popular, either using electric motor driven Z-Drives augmented with one or more bow thrusters, or using conventional main drives in combination with electric motor driven bow and stern thrusters, tunnel or retractable azimuth type.  Also very popular, especially for upgrades and conversions of existing vessels, are hydraulic bow and stern thrusters, either tunnel or retractable azimuth type.  The hydraulic drive provides an economical and technically superior solution.

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OSV References

Propulsion Equipment

Main Propulsion Type :
Two (2) TH2500MZ Azimuth Thruster
Input power : 2000 kW @ 1600 rpm
Prime mover : Horizontal electric motor

Azimuth Bow Thruster:
Type : One (1) TH1000MLR Retractable Azimuth Thrusters
Input power : 842 kW @ 1040 rpm
Prime mover : Vertical electric motors

Bow Thruster
Type : One (1) 66TT1000ML Tunnel thruster
Input power : 894 kW @ 1200 rpm
Prime mover : Vertical electric motors