Page 70: of Maritime Reporter Magazine (June 1988)

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The Cummins-powered Henrietta II is estimated to have a fuel consumption of only 3-4 gallons an hour per engine.

Cummins-Powered Paddlewheeler

Delivered By Superior Boat Works

The Henrietta II, a 85-foot by 26- foot passenger vessel built by Su- perior Boat Works of Greenville,

Miss., is now offering sightseeing luncheon and dinner cruises on the

Cape Fear River near Wilmington,

N.C. The vessel is homeported in

Wilmington and is owned by Cape

Fear Riverboats, Inc.

While decorated inside and out to resemble a vintage paddlewheeler, the boat's propulsion system is state-of-the-art. A pair of Cummins 6BT5.9 diesels, supplied by Cum- mins Mid-South, Jackson, Miss., power hydraulic pumps that boost hydraulic pressure sufficiently to drive two hydraulic motors that turn a 16-foot-diameter split pad- dlewheel. Each diesel develops 134 hp running at a constant 1,800 rpm.

A pair of Newage 35-kw generators are also powered by the same two

Cummins engines. Both are keel cooled using Fernstrum equipment. "The hydraulic system is simple, yet effective," explained Birney

Rousselle, vice president and gen- eral manager of Skipper Hydraulic in Gretna, La., designer and install- er of the system. "Each of the two levers on the Morse controller lo- cated in the pilothouse is mechani- cally connected to the control arm of a hydrostatic transmission pump powered by each engine. The hy- draulic fluid is pressurized to 2,000- 2,500 psi and pumped to hydraulic motors that turn the split paddle- wheel at 17-20 rpm." Mr. Rouselle explained that the hydraulic system is reversible, enabling the paddle- wheel to turn in either direction. In addition, each main hydraulic cir- cuit operates only one-half of the paddlewheel, enabling the operator to use it for steering by varying the speed of each half of the wheel.

Steering as well as propulsion is hydraulic. The two steering rudders are controlled via a hydraulic valve connected to the chain drive on the wheel in the pilothouse. The two flanking rudders are also hydrauli- cally controlled. A 'jog' controller in the pilothouse sends electric signals to modulate a hydraulic valve open and closed.

The Henrietta II features an en- closed main deck cabin and a cov- ered second deck. The pilothouse is elevated a few feet above the second deck for pilot visibility.

For further information and free literature on Cummins engines,

Circle 10 on Reader Service Card

For free literature on the facilities and capabilities of Superior Boat

Works,

Circle 11 on Reader Service Card

It's a lifesaver for your engines. ^

The Spinner II® lube-oil centrifuge cuts engine wear in half. Removing dirt from your engine's lubrication system is the key to reducing engine wear and lowering your maintenance costs. That's what the Spinner II centrifuge does, efficiently and economically.

Typical full-flow lube-oil filters trap dirt particles down to only about 40 microns in size. However, parts like piston rings can squeeze the oil film as thin as one micron. Remove the microscopic particles and you can reduce engine wear by half or better. To do that requires a centrifuge.

Until now, a centrifuge meant investing in an expensive, electric-motor-driven machine. Now there's the Spinner II cen- trifuge, a self-contained, high-speed unit driven only by oil pressure. It removes abrasive grit as small as one-tenth of a micron for a low cost you can justify!

The complete line of Spinner II centrifuges protects all marine diesel engines. For additional technical information, call 800/231-7746; in Texas 713/682-3651. Spinner II Products

Division, T.F. Hudgins, Incorporated, P.O. Box 920946,

Houston, Texas 77292-0946.

The Spinner II centrifuge: A lifesaver for your engines; a money-saver for you.

SPINNER II

Oil Cleaning Centrifuge ®Spinner II is a registered trademark of T.F. Hudgins, Incorporated.

Made in England by Glacier Metal Company Limited. Patented worldwide. ®1987 T.F, Hudgins, Incorporated. All rights reserved.

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For more information and free samples call or write:

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Circle 163 on Reader Service Card Circle 153 on Reader Service Card

Maritime Reporter/Engineering News