Page 4: of Maritime Reporter Magazine (May 1974)

Todd Gets Two Offshore Contracts

The Offshore Company of Hous- ton, Texas, has awarded Todd

Shipyards Corporation contracts for two additions to its fleet. Todd's

Houston Division will construct a "Discoverer" class drillship, and the Galveston Division will convert an existing cargo vessel into a drill- ship.

The new drillship, 374 feet by 70 feet by 26 feet and self-propelled, will be fabricated from steel pro- vided by the customer. It will have a forecastle, after superstructure, and a oenterline well with substruc- ture and derrick above at midships.

It will be longitudinally framed with two decks and two longitu- dinal bulkheads. Living quarters for 72 men will be located aft on the second deck, main deck, and upper deck. The top of the house will serve as a heliport, cantilevered aft. Propulsion will be accomplish- ed by means of a single-screw diesel electric drive. In addition, the ship will be equipped with bow and stern thrusters.

PrimaVac System aboard the Anders

Wilhelmsen & Co.

Tanker WILSTAR,

Oslo.

For mooring during drilling oper- ations, the ship will have a mooring plug within the drilling well, around which the ship can rotate. Lines will be lead off of winches on the plug, and the heading will be main- tained by means of the bow and stern thrusters.

The vessel will be built under survey of the American Bureau of

Shipping for class as +A-1 (E) (M) for unrestricted ocean use, with ABS class ice strengthening.

The drillship will operate as a

U.S.-flag vessel. Delivery will take place in about 24 months.

The Galveston contract will cov- er the conversion of the cargo ves- sel, a log carrier, into a 511-foot "Discoverer" class drillship. Com- ponents for the conversion will be prefabricated by Todd and will in- clude a new 40-foot midship sec- tion, a center plug mooring turret, additional quarters, heliport and longitudinal bulkheads. Most of the steel required for the conversion will be supplied by Offshore. Engi- neering and design work for the en- tire conversion is being accom- plish by Todd's wholly owned sub- sidiary, Designers and Planners.

It is expected that the vessel will enter the Galveston yard in Sep- tember 1974 for cutting and install- ation of the prefabricated compo- nents and owner-furnished drilling equipment. Completion is slated for mid-1975.

Kockums Shipyard. Malmo, Swe- den, has announced delivery of the

T/T Daghild to the Norwegian shipping owners K/S A/S Dag &

Co. (John P. Pedersen & Son) of

Oslo, on March 27.

The 260,200-dwt T/T Daghild is the 18th in a series of 20 such

Kockums - built steam turbine

VLCCs, and one of the first super- tankers to meet the rigorous new classification rules for navigation and bridge systems developed by the Norwegian classification soci- ety Det norske Veritas (DiNV).

The highly automated Kockums- built Daghild has been specially equipped with an automatic naviga- tional system, Norcontrol, and anti- collision radar and satellite signal receiver. The steam turbine ship has also been outfitted with 3 and 10 cm radar units (Raytheon), a

Doppler Speed Log (Edo Western) with transducers mounted in the bows, and two Anschutz gyrocom- passes, which provide an alarm for course deviation in case a fault should occur in either compass.

The classification of the compre- hensive navigation equipment is on

Det norske Veritas initiative and comes about as a result of a year- long effort undertaken by the classification society A/S Dag and

Kockums. Each unit in the naviga- tion system and each component of the bridge design, layout, lighting, and field of vision has been de- signed, developed and tested for in- stallation, reliability and perform- ance according to DNV require- ments.

Two Appointments

At Kerr Steamship

Kerr Steamship Co. has an- nounced two appointments. Wil- liam Sneyd has 'been named man- ager of the Atlantic Interline Divi- sion, and Patrick O'Hare Jr. was appointed as general sales manager,

Atlantic Division.

Det norske Veritas expects that eventual acceptance of the tougher standards will contribute to greater safety at sea.

At present, determination of nav- igational specifications has been left to the individual shipyards and shipping lines. The T/T Daghild is only one of some four such ships built to meet the comprehensive navigation standards.

The Norwegian classification so- ciety plans to utilize the insight gained from the development of the

Kockums-built Daghild to refine the classification rules prior to in- troducing the standards in final form. After the rules are formal- ized, ships which carry the required equipment will receive ithe notation "NAV" in the Shipping Registry.

Additional specifications will also be coded. For example, the T/T

Daghild will be registered "NAV-

N-A." This title signifies that the

Daghild has not only met the new classification rules but is also equipped with automated naviga- tional "N" and anticollision "A" systems.

Other salient data reads as fol- lows: overall length, 1,117 feet; gross registered tonnage, 125,120; length between perimeters, 1,080 feet; molded breadth, 170 feet; depth to main deck, 84 feet; draft, 66 feet; cargo space, 338,750 cubic meters; ballast space, 7,707 cubic meters; pump capacity, 16,000 cu- bic meters/hour; shaft horsepower, 32,000 shp at 85 rpm (Kockums-

Stal-Laval steam turbine), and trial speed, 15.9 knots.

Previously, 30 to 36 hours were consumed to discharge this vessel, with serious trouble encountered in stripping. After the PrimaVac installation, the same job was accomplished in less than 21 hours.

Owner's Superintendent R. Koefoed Sevaldson estimated that in the first five months, the saving in time at world scale rates has completely covered the cost of-the system.

The PrimaVac System converts any centrifugal pump to an automatic self-priming pump and is not dependent upon any auxiliary controls. It eliminates additional piping and extra stripping pumps, saves space and weight, is easily installed and operates with minimum maintenance.

Tankers of 20,000 dwt to those of 272,000 dwt with pump capacities up to 20,000 gpm are now using PrimaVac Systems throughout the world to improve pumping and stripping efficiency.

PENCO Division of Hudson Engineering Company 1114 CLINTON STREET • HOBOKEN, NEW JERSEY 07030

Phones: 201/659-2600 • N.Y.C. 212/964-6780

Telex: 222731 RCA . 422043 ITT • Cable: Pencosales NewYork

Highly Automated Kockums Tanker

Meets Newest Classification Standards

M/T WILSTAR reduces pumping and stripping time over 30% with the (S^©>System Det norske Veritas plans to employ the insight gained from the Daghild to refine the classification rules. 6 Maritime Reporter/Engineering News