Three new offshore supply vessels commissioned for Southern African oil company
Singapore shipbuilder Strategic Marine has commissioned three new offshore supply vessels for an unnamed national oil company in Southern Africa.
The vessels will be used for passenger transfer to offshore platforms and floating production, storage and offloading vessels.
Each vessel has a maximum speed of more than 53 knots under operational load – the fastest of its kind in the world.
Each vessel is powered by four 16-cylinder mtu Series 2000M72 engines from Rolls-Royce.
To enable fast and safe passenger transfer to offshore platforms, the 35-m-long vessels have been designed as so-called ‘surface effect ships’, or SES.
SES uses air-cushion technology within a catamaran hull form.
It is the first time that this design has been used in the offshore oil and gas industry.
The boats have an optimised power-to-weight ratio and use powerful fans to generate an air cushion between the hulls to minimise hull drag and resistance.
Combined with the mtu propulsion package (each delivering 5 760 kW of power), the vessels can travel at much higher speeds than conventional monohulls and catamarans, with consumption remaining at the same per hour of operations, says Rolls-Royce.
The high speed of more than 90 km/h ensures shorter transit times, while the low hull resistance saves fuel and reduces emissions.
“Our goal in building these crew transport vessels was to minimise the water resistance at the hulls and maximise the cruising and top speed of the ship,” says Strategic Marine CEO Chan Eng Yew.
“The 53-knot top speed during the sea trials demonstrates that we were successful in building and commercialising this technology for offshore crew transfer applications.”
“We are extremely proud that our mtu propulsion package has helped to develop this new and extraordinary type of vessel,” adds Rolls-Royce Power Systems Global Marine senior VP Denise Kurtulus.
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