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$3.4 Million Awarded General Instrument For Spares/Support Equipment General Instrument Corpora- tion's Defense Systems Group re- cently announced that their Gov- ernment Systems Division received a $3.4-million award from a foreign nation for spares and support equipment for their ALR-606(V)2 ESM System. The fully automatic ALR- 606(V)2 ESM System performs over-the-horizon electronic surveil- lance and targeting while simulta- neously providing radar warning for self-protection. It is capable of oper- ating in a variety of maritime patrol scenarios, handling high signal den- sities encompassing various com- plex signal types and modes, and detecting low probability of inter- cept emitters. General Instrument's Defense Systems Group is comprised of four divisions specializing in the devel- opment, production, and support of various defense electronic systems for the U.S. and international air, ground and naval forces. The Government Systems Divi- sion and Dalmo Victor Division are leading manufacturers of radar warning systems and surveillance and targeting systems, complement- ing each other. The Undersea Sys- tems Division is the foremost sup- plier of multi-beam bathymetric sonar mapping products to the free world, and Northern Scientific Lab- oratory is an important supplier of frequency measuring receivers uti- lized in the electronic defense in- dustry. For more information and free lit- erature, Circle 56 on Reader Service Card New Simple, Easy-To-Use Hydrostatics Program From Concurrent Systems Concurrent Systems, Arlington, Va., is releasing a new hydrostatics program for personal computers. The Naval Architectural Problem Oriented Language (NAPOL) will perform the following calculations: hydrostatic curves of form; trim lines; longitudinal strength; flooda- ble length; limiting drafts; damaged stability; damaged statical stability; intact stability; cross curves; intact stability in waves; and subdivision index. According to Concurrent Sys- tems, the program is simple to use. An input file is made up of readable commands which can be understood by a naval architect who is not familiar with NAPOL. The hull is defined by station offsets and apen- dages. The apendages themselves may be built from offsets, providing multiple hull capability. Compart- ments are bounded by the hull, bulkheads, decks or compartment offsets. Input and output can be in the units selected (American, Met- ric, or Imperial). In addition to the textual output for each calculation, the following graphical outputs can be generated: October, 1989 55 body plan; isometric view; hydros- tatic curves of form; longitudinal strength; and floodable length. One unique calculation option available in this commercial pack- age estimates the IMO subdivision index as laid out in the Department of Transportation document 46 CFR Ch.l "Dry Cargo Ship Subdivi- sion and Damage Stability; Advance Notice of Proposed Rulemaking." This option calculates the subdivi- sion index for compartment groups of up to four subdivisions and pro- vides an accumulative subdivision contribution for a given draft. To provide compatibility with the U.S. Navy program SHCP, there is an input translator and where possi- ble the output is also formatted to look like SHCP. The program runs on a PC, XT, AT, 386 or compatible and when available can take advantage of a math co-processor. Graphics can be produced in CGA high or low resolu- tion or in EGA or Hercules modes. For hardcopy graphics a range of plotters can be driven including those using HPGL. NAPOL is available in two ver- sions, with and without co-processor support. Priced at $225, this pro- vides a personal computer program that outperforms many more expen- sive mainframe programs. For additional information on NAPOL from Concurrent Systems, Circle 98 on Reader Service Card PbsidoniaM IToo£i8cbvia The International Shipping Exhibition Posidonia Sponsors The Greek Ministry of Mercantile Marine The Municipality of Piraeus The Hellenic Chamber of Shipping The Union of Greek Shipowners The Greek Shipping Co-operation Committee The Union of Mediterranean Cargo Vessels' Shipowners The Greek Shipowners Association for Passenger Ships The Shipowners Union of International Lines Enquiries about exhibiting at Posidonia '90 should be sent to: ' The International Selling Agents. Anthony F. Nash, The Seatrade Organisation Fairfax House, Causton Road, Colchester CO 1 1RJ, UK. Telephone: (0206)45121 Telex: 98517 DISOP G, Fax: (0206) 45190 OR Posidonia Exhibitions Ltd 4-6 Efplias Street, 185 37 Piraeus Telephone: (1) 4517859,4517868 Fax: (1) 4528976, Telex: 241937 Expo GR To reserve your exhibition space or to receive further information please contact the above offices Circle 163 on Reader Service Card