On July 13 another offshore vessel series, designed by Naval Architect and Marine Engineering Firm Guido Perla & Associates, Inc. (GPA) was completed at Zhejiang Shipyard in China with the delivery of the fourth vessel of this series. The GPA 670MKIII PSV vessels measure 240 ft in overall length and are equipped with three 1,825 kW main diesel generators, two 2,000 kW Azimuthing Z-Drive units, two 746 kW tunnel bow thrusters, as well as one 170 kW emergency generator. The use of environmentally friendlier diesel-electric propulsion, a standard for all GPA-designed offshore vessels, results in excellent fuel efficiency, lower emissions, as well as lower operating cost for the owner as one or more of the generators can be shut down for stand-by or slower moving operations.