Page 33: of Maritime Reporter Magazine (June 1973)

Insley Yard In Maryland

Builds Innovative Tugboat

Baltimore Gas and Electric Company will use the new

Insley-built 1,000-hp tug to handle fuel barges.

A new and innovative towboat, G and E No. 4, has been delivered to the Baltimore Gas and Elec- tric Company by the builder, N.E. Insley, Inc. of

Crisfield, Md.

The 145-gross-ton vessel is constructed of three-eighths-inch steel plate, and has the follow- ing molded dimensions: length, 75 feet; width, 25 feet; and depth, 10 feet. The tug was designed by Coe M. Best of New Orleans, La., specifically to handle fuel barges in the upper Chesapeake

Bay and Baltimore Harbor waters. The vessel's shallow 7-foot 6-inch draft enabled utility com- pany executives to shelve plans for dredging ex- isting unloading facilities.

Two Caterpillar D-379-TA diesel engines pro- vide 1,000 continous horsepower to a hull capable of pulling, pushing, or working alongside loaded barges. The new tug has a speed in excess of 10 knots.

The follow-up type hydraulic steering system employs tiller bars in place of the conventional ship's wheel. The tillers are connected to four specially designed rudders, two forward and two aft of the propellers. A duplicate set of controls allows the vessel's captain to maneuver from either the port or starboard side of the pilothouse with unrestricted visibility. The exceptionally good control and flanking ability derived from this system provided the environment necessary to efficient and safe fuel barge operations.

Ecological concern dictated that the 11,000- gallon-capacity fuel tanks be doubled-skinned and that the sewage holding tanks contain an inde- pendent pumping system for shore discharge.

Electronic aids include a Decca RM-916 Radar,

VHF radio, depth finder and intercom system.

The five-man crew enjoys heated and air-con- ditioned quarters consisting of a spacious galley, two heads, a shower, locker room and captain's office. Wood paneling gives the interior a pleasing appearance and is expected to reduce maintenance costs.

The Insley Shipyard, located on Maryland's

Eastern Shore between Norfolk and Baltimore, offers many marine services in addition to the construction and repair of self-propelled, vessels, hydro-keel craft and barges.

Delaval Markets 20-Cylinder 12,500-Hp Marine Diesel

A 20-cylinder marine engine at 12,500 continu- ous bhp is now available from Delaval's Engine and Compressor Division, Oakland, Calif.

Designated the RV20, the new power plant is a four-cycle 450-rpm diesel evolved from De- laval's 12 and 16-cylinder RV. Series, now being produced at ratings up to 10,000 bhp. The RV16 is presently being used in a variety of ships from tugs and seiners to passenger vessels and 25,000- dwt tankers.

Among the engineering changes incorporated in developing the 20-cylinder version of the RV

Series were the use of higher tensile strength crankshaft steel alloy, an increase in shaft di- ameter at the crankthrows to boost torsional stiff- ness, and larger flanges for the outlet connection to handle the greater torque.

Delaval's Engine and Compressor Division in

Oakland builds diesel and dual-fuel engines for power generation in cities and industries, as well as power packages for ships. Also, its gas en- gine and compressor sets are used by the gas pipeline and process industries.

Delaval is a multi-division manufacturing sub- sidiary of Transamerica Corporation.

Trans-Sonics To Supply

Instrumentation Systems

For Three LNG Tankers

Trans-Sonics, Inc., Burlington, Mass., manu- facturers of control and measuring systems, has announced the receipt of an order from Chantiers de France-Dunkerque, Dunkerque, France, to provide instrumentation systems for three LNG tankers (liquefied natural gas ships).

These ships will be employed on the El Paso program to transport LNG from Algeria to the

East Coast of the United States.

Trans-Sonics, under the $729,086 order, will furnish the Custody Transfer Measurement Sys- tem which will be used in the determination of the value of the cargo (a cryogenic liquid at a temperature 259° F below zero) being loaded or delivered, also other subsystems used in cargo handling and control.

A single LNG tanker can transport in liquid form the equivalent energy of more than 600 ships transporting gas.

To date, the company has delivered or has on order LNG systems for 14 ships, 12 from France and two from Sweden. Ships equipped with

Trans-Sonics' Systems are traversing routes from

Alaska to Japan and from Borneo to Japan.

CRAFTS-

MAN

SHIP

Production in 1972: Five V.L.C.C.s aggregating 1,426,225 dwt.

On order as per January 1, 1973: Twenty V.L.C.C.s aggregating more than 6,000,000 dwt. §

ODENSE STEEL SHIPYARD LTD.

P. O. BOX 176 • DK-5100 ODENSE, DENMARK TELEPHONE (09) 11 31 31 • TELEX 59849

June 1, 1973 35