Page 16: of Marine News Magazine (October 2010)

15 17

BOAT OF THE MONTH

The Jensen Maritime-designed river push boat, the M/V

Stephenson II, has been delivered to the U.S. Army Corps of Engineers for use in Gascondale, Mo., in the Corps'

Kansas City district. Jensen performed the functional design and production lofting of the ABS Classed boat, which will provide operational support the district's oper- ations and maintenance mission on the lower Missouri

River as well as for general construction and mitigation projects. Patti Marine Enterprises Inc. (PME) of

Pensacola, Fla., which built the vessel, hired Jensen to take the Corps' design for a smaller and narrower boat and cre- ate the functional design and production lofting. Lofting essentially involves taking a vessel design and creating a building kit for the shipyard, including assembly drawings and directions for the cutting machines. This process helps optimize building productivity and quality.

As a day boat and support vessel, the M/V Stephenson

II has no accommodations and no provisions for fresh water, although it does come equipped with an Incolet brand of head as a small crew comfort. Noise and vibra- tion reduction of the exhaust system was important to the

Army Corps, which wanted no more than 20% transmis- sibility. Jensen designed the system to use cable-mounted silencer isolators and pipe hangars, which greatly reduced the amount of noise and vibration transferred to the crew areas.

M/V Stephenson II 16 MN October 2010

Photo courtesy Crowley Maritime

Jensen Maritime-Designed Push Boat for USACE

Specifications/Main Particulars:

Length, o.a. . . . . . . . . . . . . . . . . . .58 ft

Breadth, molded . . . . . . . . . . . . . . .22 ft

Depth, molded . . . . . . . . . . . . . . . . .7 ft

Draft, designed . . . . . . . . . . . . . . . . .4 ft

Displacement . . . . . . . . . . . . . . . . .80 LT

Main engines . . . . . . . .2x Caterpillar C12

Total installed power . . . . . . . . . .770 hp

Generators . . . . . . . . .1x Caterpillar C4.4

Radars . . . . . . . . . . . . . . . . . . . .Furuno

Crew capacity . . . . . . . . . . . . . . . . . . .3

Heat exchangers . . . . . . . . . . .Fernstrum

Fuel oil capacity . . . . . . . . . . . .1,200 gal