Two Tuna Seiners Christened At Peterson Builders Yard

The twin superseiners Sea Chase and Chiriqui II were christened recently at Peterson Builders in Sturgeon Bay, Wis. The Sea Chase, launched last December, departed Sturgeon Bay at the end of July under command of Capt. Gregory Chase, whose wife, Renee, christened the boat.

The Chiriqui II, skippered by Capt. Joe Gois of San Diego, was christened by his wife, Clara and then splashed into Sturgeon Bay in a spectacular side launch.

The Sea Chase is owned by Pesquera San Bias, S.A., of San Juan, Puerto Rico; the Chiriqui II by Pesquera San Carlos, S.A.

of Panama. Both boats will be managed by Tuna Fleet Management, Inc., San Diego, of which Robert A. Grant is president. Remarks were given by James De- Silva, founder of Tuna Fleet Management.

Keynote address at the christening of the Sea Chase was given by Mr. Mizushima, vice president of Mitsui & Company Inc. (USA) ; and David Colburn, vice president of Continental Bank, Chicago, gave the keynote address at the christening of the Chiriqui II. Ellsworth Peterson, president of Peterson Builders, was the master of ceremonies.

Both boats have identical specifications and equipment, and represent a continuation of Peterson's very popular series of 1,200- ton seiners. They are 225 feet long, 41 feet wide, 19 feet deep and draw 17 feet 8 inches in design full load trim. They pack their catch in 17 wells frozen by a Vilter ammonia refrigeration system, and accommodate a crew of 22 in luxurious and beautifully appointed quarters. Main propul- sion machinery is a single 20- cylinder GM Electro-Motive Division diesel, rated 3,600 bhp at 900 rpm and driving a five-blade, 128-inch-diameter Coolidge stainless- steel wheel through a Falk 5:1 reduction/reverse gear.

Auxiliary machinery includes three Caterpillar D353E diesel engines driving Kato 300-kw generators; a Caterpillar D3412 hydraulic system prime mover, rated 520 horsepower and a Caterpillar 3406 engine rated 400 horsepower driving a 50-inch Michigan Jastram bow thruster through a Twin Disc 1.5:1 reverse/reduction gear.

Mathers pneumatic controls are provided for both main propulsion and bow thruster systems, and the bow thruster is interfaced with the Sperry gyropilot to af- ford automatic heading keeping while holding on station. The main switchboard is by Federal Pacific Electric.

The fish wells are filled using a Morris Whaley Inc. hydraulic fish conveyor. Frozen fish is floated to the tops of the wells and is placed on the conveyor where it can be directed forward and aft for unloading.

Deck m a c h i n e r y includes a Marco 560-inch power block, Marco WS454 Superseine winch; numerous Gearmatic winches, two Husky hydraulic cranes, two Peterson speedboat davits, and a Morris Whaley ring stripper. New Morris Whaley electrohydraulic brailing winches are also fitted.

The electronics complement is unusually thorough and includes two Furuno FR711 radars with a RDI radar watch; Krupp-Atlas model 950 scanning sonar with CRT display; two Morrow AM/ single-sideband radios; one CAI 1-kw single-sideband radio; two Intech Mariner 90 VHF/FM radios; King KY197 aircraft radio, President CB; Bearcat scanners, Navidyne s a t e l l i t e navigator; Baymar recording depth sounder and Impulse digital depth alarm.

A 15-station telephone system, television / VCR / AM-FM 'entertainment system, and 300-watt public address system (to which the telephones and entertainment system are interfaced) was engineered and provided by Honor Marine Communications of San Diego.

Both vessels will carry Hughes 500 turbine-powered helicopters, and special attention has been given to the efficient operation and maintenance of the aircraft.

Peterson engineers designed specific facilities including helicopter landing pad, tie-down apparatus, service shop, spare blade stowage racks, and fuel management systems to facilitate and enhance the safety of shipboard helicopter operations.

Maritime Reporter Magazine, page 14,  Aug 1981 Jack Wilskey

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