Hundested Propeller A/S of Denmark has just finished the work on the first two propulsion units of a total of six to the New York City – Department of Environmental Protection.
Bollinger Shipyards Inc. is building three 140,000 CU ft. vessels for the transportation of liquid sludge from wastewater treatment plants without dewatering capabilities.

Two VP11S and two CPG120 Marine Gears delivered to Bollinger Inc. Shipyard

Each vessel has a length of 290 ft. and is powered by two GE engines producing 1826 HP at 900 rpm.

The Hundested Propeller A/S scope of supply is the design and manufacturing of the main propulsion consisting of gearboxes, shafts and CP propellers.

Each vessel is equipped with two Hundested CPG120 gearboxes with 3,0:1 reductions. The gearboxes are equipped with electrically-driven standby pumps.

The propeller shafts each have a length of 8,1 meters. They are made for water lubricated stern tubes and are running on Ni-Al-Bz liners. Phillyclad from ITW Polymer Technologies protects the sandblasted surface between the liners.

The four-bladed CP propellers are of the VP11S series with a diameter of 2100 mm. The blades have been designed with a moderate skew-back pattern and are installed in leak proof grease-filled hubs.

The remaining four units will be shipped in primo 2012.