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Cantieri Navali Riuniti Gets $300-Million Ecuador Contract Cantieri Navali Riuniti (CNR) has signed a contract to supply Ecuador six Corvette warships valued at 250 billion lire ($300 million). They will carry American-licensed helicopters. The anti-ship and anti-air vessels carry Agusta Bell AB-212 helicopters built under American license. The Genoa shipyard has also delivered the first of six helicopter frigates ordered by the Venezuelan Navy, the 2,500-ton Mariscale Scure. This Lupo-class vessel carries two Agusta Bell helicopters and the American Sea Sparrow anti-aircraft missile. Value of the Venezuelan contract is esti- mated by the Italian company at nearly $1 billion. SNAME New England Section Hears Two Technical Papers The New England Section of The Society of Naval Architects and Marine Engineers met in Newton, Mass. on September 29, to hear the presentation of two excellent tech- nical papers. Left to right, Lyssimachos Vassilopoulos, Section chairman, is shown with authors W.H. Hanot and J.G. Arrison. Following cocktails and dinner, the tech- nical meeting was opened by the chairman of the Section, Lyssimachos Vassilopoulos, who introduced the first author, W.H. Hanot, a Massachusetts Institute of Technology stu- dent in the Department of Ocean Engineer- ing. His paper was entitled "Development of an Electro-Acoustic Transducer for Sono- buoy Applications." The paper describes the development of a piezoelectric-based trans- ducer for use as a directionally sensitive ele- ment in a sonobuoy. It is destined to replace the presently used electrodynamic trans- ducer. The new device features high sensi- tivity, directionality, wide bandwidth, and simple rigid construction. The second paper entitled "Hydrodynamic Interaction Between the Rudder and Hull of a Sailing Vessel" was presented by the author, J.G. Arrison, a recent student at M.I.T. The paper describes the results of water tunnel experiments which investigated the forces on a rudder as a function of vari- ations in hull-rudder combinations, and fixed fairings. Ways to increase boat turning mo- ment with less drag and increased stability were suggested. These included antiventila- tion plates and movable skegs. Copies of past and present Section papers may be purchased for $4, including postage, from the editor by writing Lt. Donald C. Gerber, Department of Applied Science and Engineering, U.S. Coast Guard Academy, New London, Conn. 06320. This announcement appears as a matter of record only. SERVICE AND REPAIR IS OUR BUSINESS MARINE REPAIR, MAINTENANCE AND CONVERSION SINCE 1908 UNION DRY DOCK & REPAIR COMPANY Foot of Pershing Road, Weehawken, N.J. 07087 (201) 867-0904 $16,480,882 Lawrence Steamship Company (Bareboat Charterer) a subsidiary of American Steamship Company United States Government Guaranteed Ship Financing Bonds We have arranged the placement of these securities to assist in financing a self-unloading Great Lakes bulk carrier. Warburg Paribas Becker Incorporated September 1978 November 1, 1978 11
