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Promet Private Launches Jackup Drilling Rig For Sedco Principals at recent New York SNAME meeting included (L to R): John Higginbotham, Papers Committee chairman; John C. Daidola, author and secretary-treasurer; Molly Dorman, wife of honored guest William J. Dorman; Robert G. Mende, secretary and executive director of SNAME; and Neil Reddy, vice chairman of the Section. SNAME New York Section Honors William J. Dormari Promet Private Limited, Sing- apore, recently launched the Sedco 160 (shown above). Under con- struction for Sedco, Inc. of Dal- las, the rig is a BMC-150 Baker Marine designed, self-elevating independent leg type equipped with three independent tubular legs of 260 feet, raised and low- ered by means of rack and pinion electrohydraulic drive. Jacking speed can be varied to 60 feet/ hour at full load. The platform measures 151 feet by 155 feet by 18 feet. It is in- tended that the unit will operate at water depths of up to 160 feet. Delivery had been scheduled for the end of March 1981. Following the award of the above rig, there are two more orders from Sedco to Promet for the construction of the Sedneth 201 and Sedneth 202. The two identical rigs measure 174 feet by 162H feet by 18 feet. Each rig will be equipped with three independent truss legs of 301V& feet. Jacking system shall be by means of BMC rack and pinion electrohydraulic drive. Both BMC- 200 I C Class jackups will be able to operate at water depths of up to 200 feet. A recent meeting of the New York Metropolitan Section of The Society of Naval Architects and Marine Engineers held at the Whitehall Club in New York City featured a paper titled "Maneu- vering Considerations in the De- sign Ship Spiral," by John C. Daidola and Garmia Daniel. The paper surveyed the use of avail- able data from published litera- ture in conjunction with accepted analytical approaches as a tool to enable the naval architect to pre- dict maneuverability of a vessel at the design stage. The authors evaluated the ap- plicability of such information (Engineered j ^roilucls an jSe, Atco Marine Corporation 603 DEAN STREET / BROOKLYN, N Y. 1 1 238 C21 2) B57-1 050 telex: 223357 (ATCO UR) Cable Address AMTRAOISC NEW YORK SERVING THE MARINE INDUSTRY FIBERGLASS LIFEBOATS (PER S.O.L.A.S. SPECIFICATIONS) FROM STOCK CALL US ON YOUR REQUIREMENTS Write 122 on Reader Service Card gathering techniques to the basic design effort. An approach to a quantitative measure of maneu- verability was discussed in these contexts, with recommendations as to what can be done to en- hance a naval architect's ability to predict maneuverability of ves- sels in the design stage. William J. Dorman, a 46-year member of the Society, was the honored guest at this meeting. An active member of SNAME, Mr. Dorman is a past member of Council and past chairman of the Ship Technical Operations Com- mittee and the Applications Com- mittee. A recipient of the prestig- ious Vice Admiral E.L. Cochrane Award from the Society, Mr. Dor- man's impressive career included work with J.J. Hcinry Company, American Export Lines, Bureau Veritas, and the American Bu- reau of Shipping. Two B&W-Powered Product Tankers Ordered From van der Giessen-de Noord Nedlloyd Bulk B.V., Rotterdam, a member of the Nedlloyd Group, has ordered two product tankers of 38,650 dwt from van der Gies- sen-de Noord, to be delivered in May and September 1983, re- spectively. The tankers will be identical to the two, Maassluis and Maasslot, ordered in June 1980. They are suitable for the transport of crude, various petroleum prod- ucts and chemicals, as well as edible oils. The ships will have an overall length of 171.80 meters, beam of 32.24 meters, depth of 16.50 me- ters, and draft of 11.30 meters. The propulsion machinery con- sists of a diesel engine of Bur- meister & Wain make, type 6L- 67GFCA, with an output of 13,100 bhp at 145 rpm, providing a serv- ice speed of 15 knots. 52 Maritime Reporter/Engiineering News
