Rados International Corporation, Naval architects and marine engineers of San Pedro, Calif., has announced completion of a new design to convert existing tuna purse seiner fishing vessels into mid-water stern trawlers.
Under a contract with the Fishing Company of Alaska, Rados was recently commissioned to convert the 214-foot M/V Fenicio, ex-Bold Phoenician, ex-Maria Elena, originally designed and construction supervised by Rados, and built in 1972 by San Diego Marine Construction Company as a tropical water, 1,100- ton-capacity tuna purseiner, into the Alaska I (shown above), a midwater stern trawler operating principally in the Gulf of Alaska.
With the primary philosophy of utilizing as much of the existing equipment and arrangements as possible in the conversion process, minimum structural modifications were implemented and much of the existing equipment overhauled for continued use.
The tall kingpost/mast with its associated crow's nest atop, long identified as a tuna purse seiner trademark, was removed along with other tuna fishing equipment such as booms, winches, ammonia refrigeration equipment and brine system.
After a complete modification to the stern section, including increased length, beam, and stern ramp alterations, new trawl handling facilities were erected and installed, including a stern gallow structure and an "A" frame structure, capable of handling 35 tons of fish. The addition of a hydraulic, stern wave gate, designed to prohibit the flooding of the work deck by trailing seas, was also incorporated.
Alterations to the superstructure included reinforcement of the forward and side portions of the deckhouse to accommodate heavier Arctic Sea conditions, and reinforcement of decks and working platforms especially around the large trawl winch, provided by Kawasaki of Japan. It has a trawling strength of 35 tons.
With the addition of 10 new crew berths, four of which are just aft of the stack area on the boat deck, the total crew complement has been increased to 30.
Adjacent to the crew quarters on the starboard side of the boat deck, an aft-facing maneuvering and equipment control station was added, which houses all controls and monitoring for the machinery and trawling operations including net deployment, and acts as communications center for deck operations.
All hull modifications were designed and approved in accordance with the American Bureau of Shipbuilding Regulations.
As the catch is brought aboard and funneled through a hydraulic loading hatch to the wet deck or main deck, it is sorted, filleted, and cartoned before being conveyored to six large plate freezers supplied by Mycom of Japan. The freezers are capable of freezing 27 metric tons of fish per day at a temperature of - 3 5 C.
The catch is then transferred to ten of the existing cargo wells, and held at a temperature of —30 C.
The vessel is capable of storing 513 tons of frozen, cartoned fish.
The new liquid ammonia circulating refrigeration system includes three 100-hp Mycom Compressors, Model N62B, with associated condensers, receivers, ammonia pumps and accessories.
Originally designed with engine room and machinery spaces in the forward portion of the ship, the two forward fishwells both port and starboard, have been converted into a refrigeration machinery space and a hydraulic machinery space. The refrigeration machinery space housing compressors, condensers, receivers, chillers, pumps and accessories, is located on the port side while the hydraulic machinery space, housing the four Kawasaki/Japan 100 HP hydraulic pumps responsible for winch operations and hydraulic equipment through out the vessel, is located on the starboard side of the vessel. This arrangement provided for increased space and maintenance area around each major piece of equipment.
Extensive electronic ^instrumentation includes Furuno communication, navigation and fishing equipment supplied by Honor Marine of San Diego. For ship's communications, a new SSB radio-telephone and VHF/FM radio telephone were added. The new navigation equipment included two Model FR 1011 radar units, a Loran C, an electromagnetic log, a direction finder, two echosounders and a facsimile receiver.
Additional electronic fishing equipment included two net recorders, a catch monitor, water temperature indicators and a color video sounder, Model FCV-121-ET.
The completed conversion was undertaken and directed by Marine Service Enterprise of Del Mar, Calif., and completed in May 1985.
After successful sea trials, the Alaska I departed for Arctic fishing grounds and is reported to be successfully fishing the Arctic waters.
, bilge separators, oil purifiers, sea chests heating, accommodation services water heating, etc. HVAC systems comprise ventilation of the machinery spaces to satisfy both health and comfort requirements. Ventilation air is conducted into the aft machinery space through the port stability column
established in 1992 as Rolo International with the sole purpose of providing solutions to the age old problem of eliminating water and salt from the machinery Delta T Systems engine room ventilation com- space. The Delta T name emerged in ponents were used on the high-speed catama- 1995 due to the demand
TANO systems will be built to American Bureau of Shipping ( + ACCU) and U.S. Coast Guard requirements for vessels with periodically unattended machinery spaces. TANO has designed, manufactured and installed more than 70 marine automation systems on major commercial and naval vessels since 1971, including
have similar cubic capacities. Deep fuel oil tanks are arranged fore and aft of the holds aboard the 8,990-gross-ton vessels. Even though the machinery space and accommodations are located aft, the machinery space and uptakes are not integrated with the accommodation block. There are 16 single
engine rooms. Supplied by the Nelson Division of Nelson Industries, Inc., Stoughton, Wis., the Bilge Boy will be used for processing engine room/ machinery space bilge water. Capable of running automatically or manually, the Bilge Boy removes oil from the bilge water to meet USCG, IMO and EPA requirements
AG of West Germany. According to the publication, the SIMOS 32 is a new generation monitoring system and is conceived for operation with unattended machinery spaces. Depending on the version, the system is suitable for binary and analog input signals with up to 360 or 500 channels. The brochure, with
No. 3 for its owner Santa Fe Drilling Inc. Among the significant items of repair were extensive electrical renewals, reconstruction of living and machinery spaces, and sandblasting and recoating of the rig structure. Extensive repair facilities at the yard include the widest graving dock in the western
standard for all new ships. Mr. Bliss said use of the insulation in the frigates is saving approximately $100,000 per ship. It is applied in machinery spaces. "Navy authorization was the culmination of an accelerated development and test program which required extensive fire and acoustic tests
comfort and visibility for the two man crew and up to four pilots. The isolated wheelhouse helps to reduce levels of noise and vibration from the machinery space. Equipment levels have been significantly improved from that found on the previous model. The boats are powered by twin Perkins Sabre M215C
main deck and forecastle deck. Three engine rooms which house six diesel engines (7,000 kW x 720 rpm) are arranged aft in the hull. Thruster machinery spaces are arranged in engine rooms and in the forward machinery space of the hull, with each space containing motors and controls for azimuth thrusters
of high pressure air conditioning systems and associated air side components for installations in accommodation areas, engine rooms and machinery spaces — as its U.S. East Coast representative. In addition to its high-pressure air conditioning system. Adrick will present the Danish company's
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