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The Pansio Shipyard of Valmet Shipbuilding, Finland, recently delivered four 440-kw (600-hp) pusher tugs which are intended to serve the two barge-carrying vessels M 'S Yulius Fuchik and M/S Tibor Szamuely in their In- terlighter-trade between the Dan- ube and destinations in South- eastern Asia. The tugs represent a new type of vessel built in Finland and, al- though intended to serve along with the mother ships, they are suitable equipment for any port requiring handling capacity for barges. The pusher is fitted with two 220-kw (300-hp) diesel-powered rudder propellers, giving the best possible maneuverability for the tug/barge combination. In push- ing two DM-type barges of 1,070 dwt, a speed of 5 knots can be achieved. The vessel is also fitted with a telescopic wheelhouse which is a modification of Valmet's own standard-type truck lifting mast and tractor cabin. The electricity is generated by a Valmet 310 DGK unit with an output of 18 kw. Along with the departure of The annual meeting of the Chesapeake Section of The So- ciety of Naval Architects and Marine Engineers was held at Schrafft's Restaurant in the Qual- ity Inn Colony 7 to elect officers for 1979-80 and to hear the paper entitled "Planning and Schedul- ing Hull Production Operations." The author, H.J. Ruehsen of Beth- lehem Steel Corporation, was in- the M/S Tibor Szamuely, the rest of the 54 DM-type barges built at the Pansio Shipyard for the Interlighter-service have also been delivered. These barges, rep- resenting a half-module of the Europa II-type, have a deadweight of 1,070 tons each. troduced by the moderator, Wil- liam C. Brayton, also of Bethle- hem Steel Corporation. Mr. Ruehsen emphasized the important role planning and scheduling hull production plays in the overall management effort toward achieving a profitable op- eration. General principles of hull production planning and a method of sequencing activities from the contract award through design and erection of the ship were de- scribed. The author introduced the concept of a small-scale "unit production plan" as an effective means of accumulating and com- municating production informa- tion as it develops. The plan emerges as an important coordi- nating link between planning, scheduling, hull design and draft- ing, lofting, material control and the various production depart- ments involved. The compact for- mat also makes it possible to quickly relate the many unit numbers on schedules and pro- duction control charts to their respective parts of the ship struc- ture. In planning for parts fabrica- tion, the author discussed a com- puter-aided system that trans- forms a conventional fabrication schedule into a facility loading projection along with associated leveling and facility utilization prediction. More realistic in- process durations, based on a real measure of work content, are al- most automatically obtained. Mr. Ruehsen suggested dimensional control procedures be established in conjunction with initial pro- duction planning as an important possible means of reducing costs. SHIP RERURSCHILE ASMAE SHIPYARDS VALPARAISO - TALCAHUANO - PUNTA ARENAS Dry Docks to 80,000 Dwt v.O„ Fully Integrated Shipyard Facilities - Work Force 4500 Skilled Employees ASMAR Shipyards Astilleros y Maestranzas de la Armada Prat 856, Piso 14 Castilla 150-V Valparaiso, Chile, S.A. Tel. 59411-57129 Telex 30305 A. A A USA Representative JACKSON MARINE CORPORATION 17 Battery Place New York, New York 10004 Tel. (212) 269-0937 • « One of four 600-hp pusher tugs recently delivered by Valmet. Four 600-HP Pusher Tugs Completed By Valmet H.J. Ruehsen Of Bethlehem Steel Addresses SNAME Chesapeake Section Shown at the SNAME Chesapeake Section annual meeting are, left to right: Frank Slyker, Bethlehem Steel Corporation, secretary-treasurer, Chesapeake Section; Walter E. Schmid, NKF Engineering Associates, outgoing chairman of the Section; James A. Lisnyk, MarAd, newly elected chairman of the Section; Hans J. Ruehsen, Bethlehem Steel Corporation, author; and William C. Brayton, Bethlehem Steel Corporation, moderator. 6 ZIDELL Maritime Reporter/Engineering News
