Page 29: of Maritime Reporter Magazine (January 1988)

improved U.S. amphibious capabili- ties. The craft gives the amphibious task force commander the flexibility to deploy heavy armor and equip- ment ashore from over-the-horizon at high speeds.

Weighing almost 150 tons, the

LCAC is 88 feet long with a beam of 47 feet, and is capable of speeds in excess of 40 knots, depending on sea state and payload. Four Avco-Ly- coming TF40B gas turbine engines, rated at 3,955 shaft horsepower, drive four 63-inch-diameter centrif- ugal lift fans to produce the cushion of air inside the craft's rubberized nylon skirts, and two four-bladed 11.75-foot-diameter reversable vari- able pitch propellers are used for propulsion. (continued) patrol boat, WPB-1316, to the U.S.

Coast Guard.

The 110-foot patrol boat, with a beam of 21 feet and depth of 7.3 feet, is powered by a pair of 16- cylinder Paxman Valenta diesel en- gines. The main propulsion engines drive through ZF reverse/reduction gears. She has a continuous operat- ing speed of more than 26 knots.

Electrical power for the craft is provided by two 99-kw generators driven by Caterpillar 3304T diesels.

The Island Class patrol boat is based on a 110-foot hull design from

Vosper-Thornycroft, UK, which was modified to meet the Coast Guard's needs and specifications.

ISLAND CLASS

PATROL BOAT

Equipment List

Main engines Paxman Valenta

Reduction gears ZF

Generator engines Caterpillar

Radar, ARPA & Loran C Raytheon

Omega receiver Tracor

Doppler log, gyrocompass & autopilot Sperry

HF transceiver & receiver Sunair

VHF transceivers Triton

VHF transceiver Regency

Direction finder Si-Tex

Boat davit Appleton

Boarding boat Avo

ISLAND QUEEN II

Munson Manufacturing

Last year, Munson Manufactur- ing delivered the 36-foot workboat

Island Queen II to the National

Park Service's Fire Island National

Seashore off Long Island, N.Y.

The boat is powered by twin

VT-555 Big Cam engines supplied by Cummins Engine Company. The engines are each rated at 320 hp at 3,000 rpm. The vessel occasionally functions as a patrol boat, but her primary mission is to ferry and sup- port Park Service personnel and di- vers involved in beach erosion re- search.

An unusual feature of the Island

Queen II is her specially designed deicing system, something seldom found on a vessel of this size. The sea chest deicing system, operated with recirculating engine exhaust water, is designed for operating the boat when the bay freezes in the winter.

LCAC

Textron Marine

The addition of the LCAC (Land- ing Craft, Air Cushion) has greatly

January, 1988

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