Friday, December 20, 2013

Jensen Maritime designs new fireboats for Portland Fire and Rescue

Jensen Maritime, Crowley Maritime's naval architecture and marine engineering arm in Seattle, recently completed concept designs and specifications for two new fireboats for the Portland Fire and Rescue fleet, to be delivered in the first half of 2014.

The new, fast-response fireboats are built for emergency response on long stretches of the Columbia and Willamette rivers, and should have a 20-year service life, exceeding the typical five to seven years found on similar vessels in this class.

Jensen designed the two new fireboats with a number of high tech elements, including automatic compensation for the recoil from the water cannons and fully integrated controls for fast and agile maneuvering.

The two fireboats — 54-foot long by 16-foot wide — will be powered by twin MTU 8V2000 M84 engines, each rated at 1,085 HP at 2,450 RPM. The twin MTUs will turn ZF 665TS reduction gears and Rolls-Royce FF450S waterjets, giving the boat a top speed of about 40 knots.

Each vessel will have a 3,500 gallons-per-minute fire pump on the front end along with three monitors — two on the bow and one on top of the cabin — and numerous hose connections both forward and aft. The ships will also feature an integrated hydraulics system with a hydraulic bowthruster, a feature that Portland Fire Department Project Manager Tim Von Seggern labeled "unique."

"We are proud to have contributed our best-practice experience to the design of these new emergency response boats," said Jensen's Johan Sperling, vice president.

For more of the Digital Journal story: digitaljournal.com



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