Page 8: of Maritime Reporter Magazine (May 15, 1981)

m utsa (smm eluded the KTA-3067s could pro- vide fuel savings of more than 20 percent. The engine is rated 1,250 horsepower at 1,800 rpm with continuous-duty fuel con- sumption of 63 gallons per hour.

The 16-cylinder engine weighs 10,700 pounds without gear, and stands 120 inches long, 53 inches wide and 76 inches high.

On-site service will be provided by Cummins Diesel of Connecti- cut, Hartford. Additionally, two of Mr. Wronowski's mechanics have been instructed in Cummins diesel maintenance to provide im- mediate response to any mainte- nance needs.

Other equipment onboard re- flects the variety of oceangoing and harbor assignments the own- er expects to handle. Hydraul- ically operated Allen-Johnson winches command a 50-ton maxi- mum pull rating. Seven fuel tanks hold more than 70,000 gallons of fuel, while potable and ballast water tanks have storage capac- ity for more than 12,000 gallons of fresh water.

Electrical power is supplied by two 60-kw Detroit Diesel gener- ators. Two Quincy 725 air com- pressors and six Burke transfer pumps run off the generators.

Navigational needs are met by a North Star Loran C unit and

Commar autopilot. A Kelvin &

Hughes 1700 radar unit monitors short-range traffic while Furuno supplies long-range radar. The boat is also equipped with two

Raytheon radios.

American Line Asks Title XI

On Inland Cruise Vessel

To Cost $3.8 Million

American Line, Inc., a subsid- iary of C.A. Robertson, Inc., 1

Marine Park, Haddam, Conn., has applied to the Maritime Adminis- tration for a Title XI guarantee to aid in financing the construc- tion of a 165-foot cruise vessel intended for operation on the in- land and coastal waterways of the U.S. East Coast.

Chesapeake Shipbuilding, Inc.,

Salisbury, Md., is the proposed builder, with delivery estimated for April 1982. The requested guarantee is for $2,850,000, or 75 percent of the vessel's esti- mated cost of $3,800,000.

Promet Launches Offshore Supply

Vessel For Jackson Marine

Promet Private Limited, Sing- apore, recently launched another of its offshore supply vessels.

Sponsor of the NMS 209 (shown above) was Mrs. Hugh Jackson, wife of the president of Jackson

Marine Corporation, owner of the vessel.

This $3.5-million vessel is the ninth among the 12 contracted

Promet for construction. She measures 176 feet by 38 feet by 14 feet, and is designed with de- veloped hull forms and propulsion system for optimum performance, maneuverability, speed, range, and cargo/bulk carrying capacity.

NMS 209 has a free-running speed of approximately 12 knots, and is equipped with bow thrust- ers, and firefighting and foam dis- persal equipment. In addition, she has a Halliburton cement unit with a capacity of 4,200 cubic meters.

This vessel can perform a range of unrestricted ocean serv- ices such as marine transporta- tion, exploration, and general services. Her function is mainly to service offshore oil drilling rigs. The vessel is classed by the

American Bureau of Shipping.

The Paul A. Wronowski was designed for docking nuclear subs and other large ves- sels at the U.S. Naval Base in Groton, Conn. The 90-foot tug was built by Thames

Shipyard in New London, and is the first boat outfitted with 16-cylinder Cummins

KTA-3067 engines.

Wronowski Fleet Adds First Boat

With Cummins KTA-3067M Engines

The New London, Conn., fleet of John H. Wronowski gained a new member recently with the addition of the heavy-duty tug- boat Paul A. Wronowski. The ves- sel was built by Wronowski-owned

Thames Shipyard in New London, and joins a fleet of five towboats and 12 ferryboats operated by the

Wronowski family.

The Paul A. Wronowski is the first boat in the U.S. powered by

Cummins KTA-3067M marine die- sel engines, supplied by Cummins

Diesel Engines of Connecticut,

Inc. of Hartford. The engines pro- vide a combined 2,500 bhp for the 300-ton tug. A Niigata (Nico) re- duction gear with 2.51:1 reduc- tion transmits power through 5- inch shafts to the Niigata ZP-2 propulsion units, which provide an additional 2.12:1 reduction to the propellers. Kort nozzles house 72-inch propellers that can be set at a variable drive, a feature of the Niigata Z-drive system.

The Z-drive system permits the whole propeller assembly to ro- tate. When more power is re- quired, the propeller pitch is steepened, lifting the stern and creating more forward thrust power. Mr. Wronowski estimates the system effectively raises the propulsion drive power by 15 per- cent.

Mr. Wronowski plans to use the boat to service the U.S. Na- val Submarine Base located in

Groton, Conn. He designed the boat in conjunction with naval architects at John Gilbert & As- sociates of Boston, with the ex-

Twin Cummins KTA-3067 engines power the Paul A. Wronowski. Each engine pro- duces 1,250 hp at 1,800 rpm in a com- pact package that weighs 10,700 pounds without gear. pectation of handling Trident- class nuclear submarines and long tows.

The tug has a beam of 30 feet and a draft of 10 feet 6 inches.

The half-inch plate hull is rein- forced at critical points with three-quarter-inch plate, enabling the tug to handle icebreaking chores in harbor areas. Cabin quarters can house eight crew- men, although the owner esti- mates that the boat will normally operate with three to six crew members.

Mr. Wronowski says he chose

Cummins KTA-3067M engines for two reasons: his concern over the rising cost of fuel, and past ex- perience with Cummins. He con- 10 Maritime Reporter/Engineering New:.