)esign of the Fishery Resea rch Vessel Oregon !!

UNITED S1 ATES DEPART MENT OF THE INTERIOR FISH AND WILDLIFE SERVICE BUREAU OF COMMERCIAL FISHERIES

Circular 256 UNITED STATES DEPARTMENT OF THE INTERIOR Stewart L. Udall, Secretary David S. Black, Under Secretary Stanley A. Cain, Assistant Secretary for Fish and Wildlife and Parks FISH AND WILDLIFE SERVICE, Clarence F. Pautzke, Commissioner BUREAU OF COMMERCIAL FISHERIES, H. E. Crowther, Director

Design of the Fishery Research Vessel Oregon II

By

FRANCIS Jo CAPTIVA

Circular 256

Washington, D.C. April 1968 CONTENTS

Page

Introduction. . . . . • . . . • . 1 Design developITlent . . . . . 2 Extended operating range 2 High cruising speed. 2 Versatility...... 3 Aut 0 ITl ati on. • . • • • 3 Research facilities 3 Habitability . • 3 Seaworthiness. 3 Seakindliness 3 Safety. • • • . . 3 ArrangeITlent . 3 Maneuverability 3 Reserve displaceITlent 3 Future ITlaintenance . 3 General description. 3 Vessel clas sification. 4 ArrangeITlent. . • • . • 4 Subdivision...... 4 Deck arrangeITlent . 4 Interior arrangeITlent . 5 Machinery. • ...... 5 Main propulsion . . . • 5 Auxiliary ITlachinery • • • • • • . • . . • • • • . • . • • • . • . • . . . •. 6 Deck ITlachinery 6 Laboratories. . . . • . . . • • • . . . . . • • . 7 Wet laboratory. . . . • . . . • • . . • • . . 7 Hydrographic and cheITlical laboratory 7 SpeciITlen laboratory • • . . • • 7 Live speciITlen laboratory. • . 8 Dry laboratory and darkrooITl 8 InstrUITlentation laboratory 8 Electronic equipITlent . 8 Model testing prograITl 8 Still water tests 9 Seakeeping tests 9 Design features 9 References. 10 Appendix A • • • • 11 Appendix B • • • 19 Cover Photo--Oregon II ITlaking 14 knots on sea trials.

iii Design of the Fishery Research Vessel Oregon II

By

FRANCIS J. CAPTIVA, Fleet Supervisor

Bureau of Commercial Fisheries Exploratory Fishing and Gear Research Base Pascagoula, Mississippi 39567

ABSTRACT

This paper describes the United States Fish and Wildlife Service, Bureau of Commercial Fisheries research vessel Oregon II. The vessel has been designed for exploratory fishing and gear development studies in the tropical and subtropical portions of the western Atlantic, Gulf of Mexico, and Caribbean Sea. It will be 170 feet long, will have a mean draft of 12-1/2 feet, and a beam of 34 feet. Two 800- horsepower engines will propel it through a single propeller. The vessel incorporates many innovations for ease, safety, and flexibility in gear handling.

INTRODUCTION Commercial fishery research and fishing gear studies of the United States Government are done by the Bureau of Commercial Fish­ eries of the United States Department of the Interior. This Bureau, which operates fishery research vessels in the Atlantic and Pacific Oceans, the Great Lakes, the Gulf of Mexico, and the Caribbean Sea, is now modernizing ., its fleet with new vessels. .' This paper describes the features of a modern fishery research vessel designed pri­ marily for exploratory fishing surveys, commercial- scale fishing operations, fishing gear development studies, and oceanographic research in the Gulf of Mexico, Caribbean Sea, and the tropical and subtropical Atlantic Ocean. This vessel, which is to be named Oregon g, is the seventh research vessel contracted for by the Bureau of Commercial Fisheries in the past 3 years. It replaces the fishery research vessel Oregon (figure 1) a converted 1 OO-foot tuna clipper that has carried out most of the fishery research work for the past 15 years in the Gulf and southwest Atlantic. Oregon !! will have much greater capabilities than her predecessor, for she has been designed expressly to: (1) meet the needs that have become apparent during the Figure l.--R. V. Oregon - 100-foot converted tuna clipper 15 years, and (2) have the features considered used in exploratory fishing surveys in the Gulf of mc-st desirable by many of the leading de­ Mexico and southwestern North Atlantic Ocean during Signers of research vessels. 1950-65. The primary aim of this vessel is to in­ specifications; and (3) the Bureau of Com­ crease the production of United States fisher­ mercial Fisheries Vessel Design Committee men by conducting: (1) exploratory fishing provided objective review and counsel through­ surveys to determine if commercially har­ out the design period. vestable fishery stocks are available in un­ The design evolved around the following explored areas; (2) fishing trials with con­ principal criteria: ventional and new types of fishing gear to develop improved fishing methods and tech­ Extended Operating Range niques; and (3) surveys of the Gulf, Caribbean, Many of the surveys will be off the coasts and middle and south Atlantic regions to of foreign countries. The ship must have determine the identity, abundance, and dis­ independence at sea because many of these tribution of the marine fauna. countries are relatively underdeveloped, thus The original design, which is described making it difficult, or impos sible, to obtain here, has special and unique features that uncontaminated water, suitable fuel and lu­ will probably be incorporated into the vessel bricating oil, and vessel stores. An operating when money is available. range of 9,000 nautical miles and 60 days endurance before return to port for bunkering DESIGN DEVELOPMENT and supplies was considered minimal.

The design was developed by the joint ef­ High Cruising Speed forts of three groups: (1) staff members of A cruising speed of 13 to 15 knots is the Exploratory Fishing and Gear Research desired, so that running time to and from Base, Pascagoula, Mississippi, prepared the distant portions of the assigned area is kept preliminary operational criteria; (2) Robert to a minimum, leaving more working time H. Macy, Naval Architect and Marine Engineer a vailable. The difference in available work of Pascagoula, Mississippi, developed the time that results from higher cruising speed design and prepared the contract plans and is shown in figure 2.

OREGON (CALCULATED) OREGON n (PREDICTED) DATA FROM OREGON CRUISES 47 , 53 AND 84 58.7% 31.3 DAYS 55% 1. AVERAGE DURATION=53 .3 DAYS 29.5 2. DISTANCE TRAVELED=6,000 DAYS I,...... - ...... MILES ~:::::: CRUISING SPEED OREGON 8.5 50 .... ~~::::...... ::: KNOTS ::::::::: CRUISING SPEED OREGON II 13 :::;;:.::=. KNOTS ::.:~~.:.:: IoU .. -..... :IE :.:.:.:::::' LEGEND r- 40 IoU CI) :> II:: PORT AND BUNKERS (,) .... ~!'j~~••••••• 28% 0 ..::.::•. 15 0 r- z 7( ·::DAYS IoU :.:-.: (,) II:: ..... IoU Q.. RESEARCH ACTIVITIES

Figure 2.--Comparison of running time versus work time for Oregon and Oregon ~

2 Versatility Seakindliness It is rrtandatory for the vessel to be able to It is not always easy to define "seakindli­ perforrrt a wide variety of fishing and resource­ ness," which is the surrt total of rrtany char­ evaluation activities during any cruise with­ acteristics. We need a vessel that can be used out rrtodification to structure, rrtachinery, or in fishing and oceanographic operations in the existing arrangerrtents. To assess the fishery open sea in sea states caused by winds as resources of a given area requires sarrtpling high as Beaufort 8 (36 knots). The ability to with a wide assortrrtent of fishing gear be­ heave-to corrtfortably is a special design re­ cause each type of fishing gear is highly se- quirerrtent. 1 ecti ve in what it catche s. Safety Automation Vessel safety standards are in accordance An autorrtated fishing gear and catch-handling with applicable United States laws and re­ corrtplex is needed to keep the vessel crew quirerrtents. to a rrtinirrturrt and the ratio of crew to scien­ tists at or near 1: 1. Arrangement Research Facilities Laboratories and living spaces are located within the area of least rrtotion. Most working Laboratory facilities are needed for spe­ and living areas are accessible without need cialists (and their equiprrtent) in the different to traverse the open deck. fields of exploratory fishing, gear research, biology, technology, and oceanography, thereby Maneuverability precluding the need to transport personnel and equiprrtent to and frorrt distant-water High rrtaneuverability is needed, together ports as the cruise airrts change. with refined speed control frorrt dead-in-the­ water to rrtaxirrturrt speed. Habitability Reserve Displacement To enable us to hire and keep qualified per sonnel and to ensure their well-being and This is necessary for safe accorrtrrtodation high productive effort during long cruises, of additional loads. living quarters rrtust be as attractive and spacious as possible. Future Maintenance Si rrtplicity and dependability of rrtachinery corrtponents and arrangerrtents, and adherence to rrtodern concepts of corrosion control prac­ tices, are necessary to keep operation and rrtaintenance costs to a rrtinirrturrt.

GENERAL DESCRIPTION

The hull forrrt is that of the North Atlantic distant water trawler, a vessel type con­ sidered to have superior seakeeping qualities. The conventional trawler deck arrangerrtent has been rrtodified to enable the vessel, with­ out further rigging or alteration, to function as a side trawler, stern trawler, double­ rigged shrirrtp trawler, purse seiner, longliner, gill netter, or shellfish dredger (fig. 4). There is a partial deck below the rrtain deck, two Figure 3.--Master's stateroom--double-berth cabins for superstrucfure decks, and a forecastle. crew and scientists are similar in decor and arrange­ Fourteen crewrrten and 11 scientists can be ment. accorrtrrtodated in one- and tWO-rrtan cabins with facilitie s for off-duty relaxation and study. All living and rrtost working spaces are Seaworthiness air conditioned and heated. The cruising area is subject to tropical The vessel will be powered by two diesel cyclones, so the ship rrtust have stability engines driving one controllable pitch pro­ under all conditions of load and weather. peller through a corrtpound reduction gear.

3 " R ules and R egulations for Cargo and Mis­ c ellaneous Vessels," except for minor devia­ tions such as quarters arrangements, and will meet the major requirements of the United Sta tes P ublic H e alth Service.

ARRANGEMENT

The gen eral arran g ement is shown by the - ... o utboard a n d inb oard profiles and the deck 0:1" arran gement pl ans (appendix A , figures 2-5).

Subdivision The ship is designed t o meet a one-compart­ ment standard of sub di vision but is capable Figure 4.--0utboard profile, port side. Note that working deck areas are located both fore and aft. of withst anding two- compartment floodi ng for­ ward of the engineroom, t hroughout its normal range of loading up t o the design draft. The hull will be transversely framed and of all-welded steel construction except for Deck Arr angement the upper house, which will be aluminum. Typical sections are shown in appendix A, Main deck arran gement p rovid es adequate figure 1. It will have a raked stem and a working space both fore and aft for handling modified cruiser stern. fishing and oceanogra phic gear. The main The vessel will be equipped with advanced trawling winch is locat ed a t hwart- ship forward fis h-finding, navigational, and communication of the house struct ure. D eck bollards are equipment, and will have six independent arranged to fairlead t h e t r a wl w arps to the laboratories, each fully equipped to carry out gallows frames fore a nd aft and to the outrigger its assigned function. The fore and aft open booms. The hous e i s asy mmetrical, leaving deck areas are arranged to provide adequate the starboard side cle a r for handling large working space for scientific and fishing efforts. roller- rigged t r a wl s a nd deep cores. A hinged The vessel will have a variety of winches gate is locate d in t h e forward starboard bul­ and gear-handling devices. These include two wark to facilit a te lon gline and gill net fishing. trawl winches, a hydrographic winch, a bathy­ A revolving ext e nsi ble crane is mounted thermograph winch, six sacking winches, two between the fo rwa rd hatch coamings, thereby cranes, an anchor windlass, two hydraulically permitting the crane t o serve the four freezer actuated gall ow frames, and an interlaboratory compartment s a n d h a ndle the overboard gear. and working deck overhead monorail hoist. The foredeck i s protected b y the raised The engineroom and machinery casings are forecas tle. A breakwater on the forecastle sound insulated to reduce noise levels. deck diverts sea s from the working area of the The tripod foremast has an enclosed crow's foredeck . nest. Two free- standing kingposts are aft. The a fterdeck i s p rotected by the house and, Exhaust gases from the main propulsion, except for one hatch coaming, is clear to generator engines, and the heating b oiler are fa cilitate w o rking with purse seine gear and expelled above the top of the piloth ous e through d ouble- rig shrimp trawls. a combination stack mast for low exhau st noise A c ombi nati on purse seine and trawl winch levels and clean decks. is m ounted on the upper deck, and a second Five freezer compartments h old a tot al of crane, w h i ch serves the hold and handles 60 tons of fishery products. o v erboar d gear, is mounted on the after main The principal dimensions are given in a p­ d eck just aft of the hatch coaming. The cranes pendix A, table 1. and winches are controlled from central sta­ t i ons on the upper deck aft and in the pilothouse. VESSEL CL ASSIFICATION Lifeboa t and · inflatable liferafts are on the upper deck and top of pilothouse. The vessel and its equipment will be con­ The hy d r ographic and bathythermograph structed under the special survey of the winches are located on the upper deck, port, American Bureau of Shipping to the classifica- and starboard, respectively. A hinged, exten­ sible hydrographic platform is recessed into tion ~ AI ~ AMS Fishing Vessel-Ocean ® the bulwark at main deck level just below Service. It will be insp e ct ed by the United the hydrographic winch and adjacent to the States Coast Guard a n d b uilt" to their CG- 257 entrance of the hydrographic laboratory.

4 In r r Arr J m n /

It

1 in 1 ul torsionally resilient torque shaft to the dis­ Electrical.--Electrical service is furnished connect clutch mounted on the aft end of each by t wo identical diesel generator sets rated high- speed quill pinion. Propeller speed is 240 200 kilowatt, 275 kilovolt-ampere continuous revolutions per minute. duty, 3-phase, 60-cycle, 450 volts with auto­ The minimum continuous rating for each matic and manual voltage regulation. Provi­ engine is 800 brake horsepower based on a sion is made for division of reactive loads maximum brake mean effective pressure of during parallel operation. Voltage regulation 125 pounds per square inch for 4- cycle engines is to plus or minus 2 percent. Alternating and 85 pounds per square inch for 2-cycle current equipment inoperable on the ship serv­ engines. Maximum allowable piston speed is ice primary voltage is suppliedbytransformer 1,500 feet per minute. banks. The main propulsion diesels and the main generator diesels are of the same manufac­ Deck Machinery ture, type, bore, and stroke to facilitate maximum interchangeability of parts and oper­ Hydraulic systems.--Deck machinery is ating and maintenance familiarity. powered by two separate hydraulic trans­ Multiple engine propulsion was chosen be­ mission systems. The primary system is cause of the requirement for (1) high speed main- engine powered, of open loop, clos ed in making passage to distant areas and for center, parallel operation design. It operates towing heavy gear, and (2) low power and low the main and combination winches. Each main speed necessary for hydrographic and experi­ engine drives two fixed displacement vane mental work. This system also results in a pumps so arranged and cross-connected that shorter engineroom. either of the winches can be operated indi­ Twin- screw propulsion was not considered vidually from either power source. Power because of the increased risk that the fishing rating at each drum is 150 horsepower. g ear might foul the propeller s. A controllable The secondary system is also of open loop, pitch propeller was specified to permit ex­ closed center, parallel operation design and tremely slow vessel speeds while delivering operates the cranes, hydrographic winch, the high power needed for the winches, which bathythermograph winch, sacking winches, and neces sitated main engine drive. A controllable gallows frames. It is powered by three 50- pitch propeller arrangement also provides an horsepower electric motors that drive six almost ideal solution for maintaining constant pressure-compensated, variable-volume vane­ engine power, regardless of vessel speed type pumps in pairs. The secondary system through the water, because it permits optimal is capable of 105 gallons per minute, which setting of propeller pitch under the various is calculated to operate the necessary groups power demands for trawling, steaming, and of auxiliary machinery simultaneously. creeping or holding position. Pitch control is not coordinated with engine speed to obtain Main trawl winch. -- The main trawl winch optimum thrust, because this feature is not consists of two heavy-duty single-drum re­ compatible to main engine drive of the trawl versible winches , which can be mechanically winches, but pitch setting and engine revolu­ interconnected. Controls are provided at the tions are controlled indi viduall y. An alarm winch and in the pilothouse console. Each system is provided to indicate engine overload drum is equipped with automatic level wind, throughout the operating range of the engines. cable counter, brush and slip rings , and a trawl warp tension indicator. Its use is pri­ marily for heavy-duty and deep-water trawling Auxiliary Machinery operations. Evaporators.-- The vessel is equipped with Each drum has the following capabilities: two salt-water evaporators using heat from the generator engine cooling water. Capacity of (1) Capacity for 6,000 feet of 1-inch each is about 750 gallons per day. diameter cable with flange margin to accommodate 50 fathoms of 3/ 4-inch diameter steel cable bridles. Refrigeration, air conditioning, and heat­ (2) Line pull of 14,000 pounds at about ~.-- Refrigeration and air- conditioning ma­ 300 fe~t per minute on the mean drum chinery consists of three identical 10-horse­ layer in series connection. power and one each 7-1/2 - and 15-horsepower (3) Line pull of 28,000 pounds at about direct expansion freon 12 compressors. The 150 feet per minute on the mean drum 10-horsepower compressors serve the 5 to 20 layer in parallel connection. degr~es Fahrenheit freezer compartments. The 7-1/2- and 15-horsepower compressors Auxiliary trawl winch.-- This winch is lo­ serve the 38 degrees Fahrenhelt cooler and cated on the upper deck aft and consists of the air-conditioning system, respectively. Heat one reversible, parallel shaft, combination is furnished by an oil-fired marine-type hot­ purse seine-trawl winch. The parallel shaft water boiler. (opposed drums) arrangement is ideally suited 6 to fishing two trawls simultaneously, and for of 16-1/2 feet and extend" to a ma'lmum handling the towline and pur s e line during of 30 feet. seining operations. It is also used to hook up (3) Sixty-degree boom tOpplll the towing warps when stern trawling. It has a minimum working radius of 7 f an automatic level wind device, cable counters, (4) Dual cable hoist provide on III le­ and brush and slip rings. Control is from a part hOlst and one double- pa rt hOI t cap - central station overlooking the working deck. ble of independent or SImultaneous opera­ The winch has the following capabilities: tion. (5) Line speed of 117 feet per mlllut (1) Line pull of 7, 000 pounds at 300 feet and single line pull of 6,000 pounds. per minute on the mean drum layer in (6) Safe load operating range of Il,OOO series connection (both drums simul­ pounds at 7 -foot radius, 5,000 pounds at taneously). 18-foot radius, and 3,OOOpound"at30-foot (2) Line pull of 14,000 pounds at 150 radius. feet per minute on the mean drum layer in parallel connection (both drums simul­ taneously). LABORATORIES (3) Line pulls are doubled for single The laboratory arrangement IS sho .... n In drum operation. appendix A, figure 10. (4) Capacity for 9,000 feet of 1/2-inch cable with flange margin for bridles. Wet Laboratory Sacking winches.- - Retrieving lines to the The wet laboratory is located In the star­ nets (quarter ropes and lazylines) are handled board side of the deckhouse aft and ha~ an by five sacking winches, which take the place area of 275 square feet. It is designed to of the conventional gypsy heads. Thes e winches permit rapid and continuous flow of the catch are recessed into the deckhouse, are remotely from the deck through the laboratory for controlled, and have the following capabilities: processing, identification, preservation, or ultimate disposal overboard. The system in­ (1) Drum capacity for 25 a feet of corporates a deck- mounted hopper Into whIch 3/4-inch rope. the catch is deposited, a 23-foot conveyor belt, (2) Line pull of 4,000 pounds at mean a heading and filleting bench, and an automated drum layer. specimen sorter and tabulator. Water chutes (3) Line speed of 75 feet per minute carry edible products to the weighing and pack­ at mean drum layer. aging station, and fish offal to the overboard discharge chute. Hydrographic winch. -- One sin g 1 e drum Other facilities include a wet gear locker, hydro-winch with extensible A-frame is in­ sCIentifIC stores locker, dumb waiter to fre zer stalled directly over the hydrographic labora­ compartment, reference a nd identificatIon tory. Operation is from the hydro-platform room with microfilm reader and image control which is located near the entrance of hydro­ board, and necessary sinks and cabinets. graphic laboratory. This winch is reversible Services include 120-volt alternating cur­ and capable of controlled power hoisting, power rent, hot and cold fresh water, and sea water. lowering, and gravity lowering. It is equipped with level wind mechanism, cable counter, Hydrographic and Chemical Laboratory and slip rings. The hydrographic and chemical laborator) Capabilities include: is on the port side of the deckhouse aft and (1) Drum capacity of 12,000 feet of has an area of 210 square feet. It IS de ign d 3/ 16-inch cable. for processing water samples and for techno­ (2) Line pull of 1,500 po:unds at 400 logical studies of fishery product . Equlpm nt feet per minute at the mean drum layer. includes Nansen bottle and bathythermograph racks, work benches, sinks, refngerator­ Bathythermograph winch.- - The bathyther­ freezer, and storage cabinets. instrumentatIon mograph winch installation is similar to that is provided for determination of surface water of the hydro-winch except that capacity is temperature, air temperature, relativ hu­ 3,000 feet of 1/8-inch cable and line pull is midity, barometric pressure, water depth, and 500 pounds at 400 feet per minute. vessel position. Services include 120- and 240-volt alternating current, hot and cold fre h Hydraulic cranes.- - The two deck-mounted water, sea water, compressed aIr, and as. cranes have the following features and capa­ bilities: Specimen Laboratory (1) A 360-degree continuous rotation. The specimen laboratory 1 desl ned pn­ (2) Two-stage hydraulically activated marily for the pre_ ervatlon and storag of extensible boom retracts to a minimum selected specimens and ha an area of 100

7 square feet. It is equipped with large chemi­ single side band transceivers for long­ cally resistant tanks and storage racks for range voice communications. specimen jars. Built- in pressurized tanks are 3. Loran A and C for accurate position provided for the preservative solutions. All determination. sinks and work tables are of chemically re­ 4. Automatic radio direction finder for sistant material. The inboard longitudinal position determination in areas lacking bulkhead is portable to facilitate removal of Loran coverage. the large specimen tanks. This laboratory has 5. Four depth sounders with range ca­ an independent air supply and exhaust system pabilities to 6,000 fathoms, including a so as not to contaminate other living or working precision depth recorder. areas with toxic fumes. Services include 120- 6. High resolution, horizontal and verti­ volt alternating current, hot and cold fresh cal scanning fish finders, including a water, sea water, and compressed air. Fish Detection System, which uses a sea­ bed lock mechanism that permits stabilized Live Specimen Laboratory magnification of fish echoes at selected depths without the normal interferences. The live specimen laboratory is located 7. An automatic, impressed current, forward of the specimen laboratory and has cathodic protection system for corrosion 75 square feet. It contains sink, work counter, control of the underwater hull. storage cabinets, four aquariums, and a sea­ 8. A speed-distance log that records water storage tank. Aquarium piping and pumps speed and miles traveled through the are of nontoxic material. Services include water. 120- volt alternating current, hot and cold 9. A closed-circuit television chain fresh water, compressed air, and sea water. with monitor in the pilothouse and cam­ eras mounted in areas not visible from Dry Laboratory and Darkroom this station. The dry laboratory and the darkroom are in the deckhouse structure forward on the star­ board side. Combined area is 130 square feet. The dry laboratory has a drafting table, two desks, storage cabinets, and a cushioned labo­ ratory counter for microscope mounting. The darkroom contains work counters, storage cabinets, and sinks with hot and cold fresh water. Instrumentation in the dry laboratory is generally similar to that specified for the hydrographic laboratory.

Instrumentation Laboratory Because the vessel will have considerably more than the normal amount of electronic equipment on board, it was considered neces­ s ary to provide a laboratory specifically for the development, testing, maintenance, and repair of electronic equipment. Equipment in­ Figure B.--Radio and chart room showing location of cludes oscillos.copes, frequency indicators, communication and navigational eqUipment. tube checkers, and various types of built-in monitors. Services include 120-volt alternating current and variable voltage direct current. MODEL TESTING PROGRAM Although the technical literature provides extensive data on the distant water trawler ELECTRONIC EQUIPMENT hull forIn, operational criteria for this vessel differed sufficiently from the conventional The vessel is equipped with electronic in­ trawler to justify tank testing of the design. struments of late design. Notable among these Extensive model tests in both still water are: and waves were made. The model was tested in two load conditions, 1. Two radar transceivers--one for representing normal departure (Load Condition general navigation and one for scientific I) and normal arrival with fish holds full (Load purposes. Condition II). The principal dimensions and 2. Double side band transceivers am­ stability data for the two load conditions are plitude modulation for short-range and shown in appendix B, table 2.

8 Still Water Tests Preliminary re is ance and p opul lon t st were made with a model of the prehmlna ry lines plan. The result were compared Ith the Model Basin's statistical record 0 de­ termine the final lines. The final hull d si n (appendix B, figure 1) was then tested in still water. A 1:12 scale wax model was u ed in the still water tests.

Seakeeping Tests The tests in waves were carried out in on reducin two parts: self-propulsion and free-floating (hove to). A 1:16 scale wooden model (fig. 9) was used for the tests in waves. The model was self-propelled with a controllable pitch propeller and completely free in all its motions.

Figure 9.--Wooden model (1 /16 scale) undergoing sea­ keeping tests.

The self-propulsion tests were made in regular head seas, from which the prediction of behavior in irregular long crested head seas was computed. The free-floating tests with wind simulation were made in irregular beam seas. The mean wave period during these tests was about equal to the vessel's natural roll period, 'whereas the sigmficant wave height was increased with increasing Beaufort number. Thi resulted in rather high roll angles; however, the per­ centage of time that this would happen on th open sea is considered to be ne ligible. Roll extinction test , with and wIthout bllge keels, '>"ere carried out in smooth wat r at 7.ero headway. orne of the test result·· are hown in appendi . B, figure 2-11.

DE IG • FEAT RE

The out th bwl-in 'er atilit" i. e., o func ion I h a wide variet· of f1 hI nd me hod 6. Standardization of engines, electric That the final design fulfills t he operat i onal motors, pumps, and compressors. criteria originally set for t his vessel is a 7. Substitution of remote controlled tribute to her designer and to the many othe r s sacking winches to handle fishing lines in whose specialized experience and knowledge place of gypsy heads, which provides a contributed toward assuring that the Bureau significantly greater margin of safety for will have a vessel that wlll take t he fishery operating personnel. scientist to sea; place modern well - equipped 8. A system offairleads and connectors laboratories , electrOnic aids, and a wide array that enables the four trawling winch drums of fishing and oceanographic gear at hi dis ­ to perform as one winch. This system posal; permit him to fish and make observa­ offers capabilities equal to that of the tions at depths and ln sea condltlOns once oceanographic deep sea winch without considered impractical, if not impossible: and the attendant problems of weight, space, accomplish this with up-to- date comfort and and cost. With standard towing warps it is efficiency. possible to make a 5-mile-deep cast or The Ingalls Shipbuilding Corporation of as­ to fish trawls to 2,500 fathoms. This cagoula, Mississippi wa s awarded a contract capability can be extended with smaller for construction of the vesselinJune 1965 . De­ diameter cables. livery was scheduled for May 1967 . 9. The simplicity and dependability of machinery, plus the use of special coat­ ings, materials, and structural shapes, is REFERETCES expected to minimize maintenance. Epoxy and inorganic zinc coatings, cortene steel and aluminum plating, and bulb plates for GRZ YWACZEWSKI, Z., Z. HELLE, S . SZ 110, brackets and beams expos ed to the weather and J. SWIECICKI will be used where appropriate. 1959. \ spolcze,;ne statki rybackle (Modern 10. The refrigeration system design is fishing vessels). [In Polih. ] \'ydawmctwo such that the catch may be iced, brine Morskie, Gdynia, 344 pp. Tran lation frozen, dry frozen, or kept in chilled sea (OTS 61-11362) available from the Clear­ water. The five freezer compartments are inghouse for Federal Scientific and Tech­ designed for a temperature of minus 20 nical InformatlOn, .S. Department of degrees Fahrenheit; however, back-pres­ Commerce, Spnngileld, Va . 1964. ,','ar ­ sure regulators permit control and main­ saw, 303 pp. tenance of temperature from minus 20 to TRAU1'G, JA '-OLOF (editor) . plus 38 degrees Fahrenheit to facilitate 1955. Fishing boats of the world . Fishing technological studies. Tews , London, xx T 579 pp . 11. Roll stabilization- - The nature of TRAU G, JAN- OLOF (editor). the work requires a high degree of roll 1960. Fishing boats of the world; 2 . Fish­ stabilization. The tank tests show that mg 'ews (BOoks) Ltd ., London, 781 pp. the roll damping ofthe hull increased about TRAU! G, JA! '- OLOF, and • 'ORIO FUJI 'A. iI twice with the application of bilge keels, (editors ). but provision is made for the future instal­ 1961. Research vessel design. FAO Re ­ lation of a flume stabilization system search Vessel Forum, Tokyo. FAO, Rome . should the bilge keels prove inadequate. pp. 1-84; BEM- I - 8; BRA- I - 6; BUR- 1- 6 ; DAV-l-11; EDD- 1- 13; FOL- l - ll; GRI- l - Historically, the major problem encountered 14; HAM-1-5; HAS - I - 13; HER - 1- 8; HOE- by a vessel designer is combining into a 1-9; HOG-1 - 16; Ht:S- I - 16; KAR- 1- 2S ; workable whole the many characteristics de­ KAW-I - 3; KOJ - I - 12; KUG- 1- 8; K M- 1- 4 ; sired by the intended owner or operator. Be­ LEE-1-7; LEI-I - 51; LER- I - 17 ; MA ' - 1- 9; cause many of these characteristics are in MIC-1-15; MIL- 1- 28; MOT- 1- 6; TAJ - l _ direct conflict with each other, compromises 10; NAK- 1-12; NI - 1-7; POS - 1- 16; ROS - are forced upon the designer and the owner 1-71; SAS - 1- 6; TAG- l - 13; TAK- I - IO ; to obtain a ship satisfying both the needs of TAN- 1-3; TAY- I - 6; TER - I - IS; TRO- l - the owner and the expected service conditions. 16; UDA-1 - 5; WHE- I -7; YOK- I - IS; ZIM­ In this respect, Oregon!! proved no exception. I - S.

10 APPENDIX A

Appendix Table l.--Principal Specifications of Oregon II

Item Dimension

Length, overall •••••••••••••••••••••••••••••••••••••••••••• 170.0 feet

Length on waterline •••••••••••••••••••••••••••••••••••••••• 158.0 feet

Length between perpendiculars (LBP ) •••••••••••••••••••••••• 152.0 feet

Bea.m. •••••••.•••••.•••••••••••••••••••••••••••••.••.•••••••• 34.0 feet

Depth, midships of LBP •••••••••0 •••••••••••••••••••••••••••• 18.25 feet

Draft at forward perpendicular ••••••••••••••••••••••.•••••• 11.0 feet

Draft at after perpendicular ••••••••••••••••••••••• •••••••• 14.0 feet

Draft, mean ...... 12.5 feet

Draft, scantling (mean) ••••••••••••••••••••••.•.• .••••••••• 13.5 feet

Freeboard, minimum to designed waterline ••••••••••••••••••. 5.5 feet

Displacement at designed draft •••••••••••••••••••••••••••.• 906 tons

Light ship weight, excluding ballast ••••••• • ••••••••••••••• 670 tons

Estimated gross tonnage •••••••••••••••••••••• •••••••••••••• 700 tons

Deadweight at designed draft ••••••••••••••••••••••••••••••• 236 tons

Installed horsepower (maximum continuous) •••••••••••.• • •••. 1,600 horsepower

Service horsepower (90 percent) •••••••••••••••••••••••••••• 1,440 horsepower

Speed, "trial ...... 14.5 knots

Speed, service (designed draft) •••••••••••••••••••••••••••• 13 knots

Fuel capacity (normal) ••••••••••••••••••••• ••••••••••••••.• 65,800 gallons

Fuel capacity (maximum ) •••••••••••••••••••••• •••••••••••••• 80,900 gallons

Lube oil capacity •••••••••••••••••••••••• ••••.••••••••••••• 1,500 gallons

Fresh-water capacity (tanks) ••••••••••••••••••••••••••••••• 8,000 gallons

Fresh-water capacity (two evaporators) ...... ••••••••••••••• 1,500 gallons per day

Normal range at service speed •••••••••••••.•••••••••.•••••• 9,100 nautical miles

Extended range at service speed •••••••••••••••••••••••••••• 10,700 nautical miles

Endurance (at service speed) ••••••••••••••••••••••••••••••• 30 days

Endurance (exploratory operations ) ••••••••••••••••••.•••••• 60 days

11 1=-I i

I - 3/8' PlT Z - OT BHD 5/16' PlT 3 - WT 8HD 1/4' PlT 4 - STIFF 6"x31/2"X5/16"l 5 - STIFF 1x ~ S/16\. 6 - STIFF Sx 2"x V4"L 7 - 6"X IIZ"FB 8 - 1/4"PLT 9 - S/I6'PLT 10 - 3/16' Pl T II - STIFF 3'1. z"x 3116"L IZ - BRKT - BlA.8 PlT CIF 10'1. 3 vtx Z7_Z- 13 - BlWK PLT 5116' I< - RAll-6'X" REct TUBE 15 - OECK SUPP. PC IZ 16 - DECK PLT 114' 17 - DECK BEAM

TYPICAL SECTIONS \ , ,,

, I, , , I I . ~ ~ 0 I.< 0.. "B III 0 ..Q -' ...... 0 a: 8I "- I 0 N , a:... , 0 , '" , :J ~ , 0 ~ , .....>< "0 , ~ , ~ , 0.. , -< ," I I,

13 IIALlAST·2f\J[l ~-3SONAA RCl(»-~S[MG£ TANK-~ru[l SETTLING Tf

..... ~ \ \ , - @ ®

® @ IJ01 1 ® CD .- 0 _ .- - 1® 1 0

INBOARD PROfiLE

Appendix figure 3.--Inhoard profile. I - Bosr-rs STORES 21 HYDROGRAPHl C LAB ORATORY 2 - CH AIN LOCKE R 22 - OIL SKIN LOCKER .3 - NE T GEAR 5 TO w..GE 1.3 - SCIEHTlrlC GEAR lDCI<.(R " CHIEf SCIE NTIST 24 - DUhlBWAITER iii ~ - CH IEf ENGI NEER 25 - PILOT HOUSE 6 - TOILE T & SHO WER 26 - RA DIO & CHART RO O'" "''' /' 7 - WA TER CLOSET 27 - SCIENTifiC OATA ROOM .~"'-. 8 - TWOl21 MEN U - CAPTAIN S T.A,TEROQIrol 9 - DRY LAB ORATO RY 29 - TOILET & LAVATORY "'- "'-v./ ~ 10 - DARK RQo.,I 30 - BATTERY lOClo;[R II - INS TRUM(NTATION LAB ORATORY 31 - CO NFERENCE ROOM 00 ~~ "'- 12 - 5HOW(R 32 - fAN ROOM 13 - Al\SSAGE 3J - WORKBOAT --D@aDO i4J~ ~ 104 - LINEN LOCKER ~ - BINNACLE I~ - LIVE SPEW.A[N LABORATORY 35 - SEARCHLIGHT 16 - SPECIMEN LABORATO RY 36 - RADA R ANTENNA ® $- 17 - MES5ROOM 37 - U f[RAfTS 18 - UPTAKE SPACE .38 - STACKMAST IS - GALL EY 39 - SPARE ANCHOR 20 - WET LABORAT ORY 40 - WINDLASS

HOUSE TOP

ICD Q3I .... iCD CJl ELllI

UPPER DECK FORECASTLE DEC K

@ ~- o +-----r8 j ~ o

-.------____ J

Appendix figure 4.--Main and upper deck arrangement.. -- Tr--~ I I PI 0, ~-!------r -______/' @ ---- @ ENGINE @ @ ~ / --l r--' ,-, @ lilfill L.-.J '-_.J ~ ------~?~ --E ,--, ,---, 0~--::::'~' -- --)- L-_---1 L_~ ------\ ROOhl @ @ r -~-/' \ @

.~----- ___----.lJ, '==="1;' i -=-==' ~ I ! ---- -...... :.----- ~.~ ------~"-- ~ LOWER DECK

l-fOR(P[AK BALLAST. Z-BAllAST. 3-rUn OIL "-fRESH 'WATER. ~-GYRO ,\ SONAR ROOIrot. 6-S[WAGE TANK. 1-fa SETTLI NG rANK. B-l.o. rANft. 9-ENGINE ROO'" RECESS. 0- IO-CHAlN LOCKER. II-STORES. Il-R[F'RIG(RAT(O CARGO. IJ-TWOlZ) ""EN. '''-LOCKER. 1!;-Rt.SSAGL 16-5HOW[RS. 17-liNEN LOCKER. 18-fO.5£TTLING TANK . I9-LAUNORY.

- ~-N[T 2O-TOIL£T ' SlOP SINK. ZI-COOlER 38·, ZZ-fR((l(R -20". 23 -DRY SmA[S. 2'4 -OVWSWA ITER. STORAGE 2'6-5CU64 LOCKER 27-ST[ERlr«; GEAR ROOw

[ NGIN[ 'I, 0- GJ ®

ROQ hI .~ CD-

HOLD

Appendix figure 5.--Lower deck and hold arrangement.. I - DIESEL [NGIN[

l - DIESEl GENERATOR

J - REDUCTION GEAR

" - WAIN SWITCHBOARD

~ .. BILGE PuwP ~ - AIR COMPRESSOR ~ t- j).H{'t --l~ I I 1 - HOT WATER H(ATER DECK 8 - DISTILLERS

9 - STARTING AIR TANK

10- S. W. SERVICE PUMP II - CONSOLE '----"'------1...!!..lliL LEV( L rca G

UPPER LEVEL --..:J

IQijJ ~o § m!o~n C::::J OIIJ 0 U

I------.J) 0

QID tliD()a:J lSI ?~o ~ ~ C:J ---I--+~ MACHINERY t [LEVATION ruJ ARRAN GEMENT LOWER LEVEl

Appendix figures 6-9.--Machinery arrangement. = 11----,---- ,D D

~I

, /

18 APPENDIX B

Appendix Table 2.--Principal Specifications and stability data, Oregon II

Load condition

Item Symbol I II

Length between perpendiculars •••••••••••.••• 152.0 feet 152.0 feet

Breadth, molded ...... B 34.0 feet 34.0 feet

Draft at forward perpendicular •••••••••••••• 14.0 feet 14.37 feet

Draft at after perpendicular •••••••••••••••• 14.0 feet 12.51 feet

Draft J mean ••••.••..•.•.••••.••••.••••••••.• 14.0 feet 13.44 feet

Displacement •••••••••••••••••••••••••••••••• 900 tons 843 tons

Waterplane coefficient •••••••••••••••••••••• a 0.736 Mldshipsection coefficient ••••.••••••••••••• 8 0 .772

Block coefficient ..••••••••••.••.••••••.• ••• b 0.490

Center of buoyancy aft of section 10 •••••••• f

Longitudinal radius of gyration ••••••.•••••• 0.248~ P

Height, metacentric •.••••••••••••••••••••••• GM 3.24 feet 2.22 feet

Period of roll ••••••••••.••••••••••••••••••• T'I' 7.8 seconds 10.0 seconds

Period of pitch ••••..••••••.•••••••••••••••• To/I 4.76 seconds 4.82 seconds

Length of bilge keels ••••••••••••.•••••••••• 1 45.6 feet

Height of bilge keels .•••••••••••••••••••••• h 1.5 feet 1.5 feet

19 10 AP

S'·O"WL

Z'-6"Wl

::=::::::.."..~~' ) Cl

t 3>4'-0' rB I 1I'-0'H9 ~ It'I=1= ~ \J I! II l A !~ ZO'-O'W\. oN T~ PARABOLIC C"' WB(R CU RVE

....~'-O"WL v ...... /" """ 2'-6 1Wl,. '7 Bl ./ ~ :::::=t==-/ I Z6'-O·Wl I / .../ 1 / 23 -0•• /' :/ / zo'-o'lIII. I I / /1 / "'-O'WI.. ""'-Ii ...... OW L \"-... '-...... I I / /1 17 H'-O"wt t- F I ~ ~ ~- -- -l -;7 / / 11 '-0". I I f-- '\ ...... ~ ~ /' I / 8'-0' I I ( ~ ~ / ~'-o · - ) - -f-.- - 1/ -- BL 10 AP a FP

LINE S

Appendix figure ll.--Final hull lines. l~~ 'l~~ !u......

~ t' ~ i~ l Ii ~~t'" I ~n ~! ~ .. . ~ ~ !, ~tH' ,~ '. ~ jll ~ \~~ l', II ~11 it " !~~k~l ~ ~~~h~ ib

.,- -"

21 ---

lOADED CONDITION" ROLL EXTINCTION. WITH A.NO WtTHOUT BILGE KEELS S~EED OF SHI~ IEIIO Appendix figure 13.-Roll extinction. with and without hUge keels.

~QPEL 200:1 Z MUMCH VUU:L -.....,."..,..

LOoI.Ot:O CO!tOITI~ I

--LOoAD£O COIC>tTIOH •

, . Appendix figure 14.-Total acceleration forward. irregular head seas. , ------, 0 ---- - . ------. -~ ~.-!..-----­ o. ------,f

--__ 1'£1"0 0#...... IUrfon ~:~~I_CE- PREDICTION FOR RE,sEAIKN ~L'.s.sEi. FDA TH£ U.s.,.. ,.ISH ANIJ WIi.IJU,.£ .J'L'AVKL'.

ORDERED BY; HA'. HOBERT H. HACY.

MODel No.C67.1 . SCREW No. 27.1,t..(..•

Lo, • 4 . .1.10 DIAM.,EI ~S()O L,.. .4. 470 PITCH AI IDOl f"~f a,.. LO fO . J~ 'ITCH AT BLADE liP ~f4' OR . ON F, J . JSJ .ITCH AT 0.1 DIAM lfJ4 DR. ON AP J .Hl DISC ".fA _Ano ". U~ MEAN O_AUGHT J .4SI HUM.E. Of 8lAO£S " DISP'lAClEfr04EHT 44&

TEST No. 2fGS'~ WIT/l4ILG£ KEELS I PKLJlCTI()/'/: ZSIJ WITN .1l-tU KEEl-oS r

....w ;:) z i ...III( ~ ~ w ex U VI .... X ...... 0 VI Z SD() 0 ;:: ;:) -' 0 >w ex

f~ fJ IS WA ...... I'fAACN fl •• DIAGRAM No SPEED OF SHIP IN KNOTS fH' W".lIHUHD'H' /If 16?J - '1.1.

Appendix figure lS.-Speed prediction - light ship.

23 NED . SCHUP'S. OUWKUNDIG ".OEFSTATlO ... WAGEHIHGEN HOllAND

SERVICE- PREDICTION FOR A£.srAIICN IIrSSEI. /ftJII THE U. ,s.A. '-'SN All... ' TRIAL- WM./).I.,,'E .r£AIlIt"'r,

ORDERED BY: Nil. R08£IIT H. HACY.

MODel No. 267.1. .sTrICK SCREW No.2 7.(1<-. • rRINClrAL DIMENSIONS FOR SHIP PRINCIPAL DIMENSIONS FOR SCREW

Lo. H.J.IIJ DIAMETER 2SI111 LWL +1.fSl PITCH AT ROOT f7+f .... L.D fl1 . .I6J PITCH AT BLADE TIP ~f6' DR. ON FP. +.267 rlTCH AT 0 .7 DIAM. 21.16 DR. ON Ar. DISC AREA RAno aSI2

MEAN DRAUGHT _ AI NUMBER OF BLADES # DI5rLACEMEN' IN.S m.'

TEST No. ~'rS'.j WITN411.U KEELS I PIlEDICTIOIf: ISO . WnN .11." /(1£1.0$ Z

... ~ ::I Z i ...III:: ~ ~ w III:: U on w :r ...... 0 on Z 0 Sl1~ j: ::I ~ 0 >w III::

ff fZ f.J WAGDCINGIN. HAIICH IU+. DIAGRAM No. SPEED OF SHIP IN KNOTS THI surIRINTENDIN', 1t~.~4- f~ • . -v

Appendix figure 16.--Speed prediction" design displacement.

24 ...... ,..notI_'... O'~u ...... I .... ]

MODEL 2ee~ Z RESEARCH VESSEL-

T TA

OfU,F T FeJAIIWoAD , .. It ---LOADED CONDITION I I o.tAFT MT , .. rt DlP'VoCE""ENT '00 ton

OIItAfl'T F~""D 1417rt ---LOADED CONDITION I : DR.FT ItFT 12.e, ft 0I5""AC£JroIIENT ..) ton

Appendix figure 17.-Total acceleration aft. irregular head seas.

1.0 8£...,,.0Rf : . __ ----' ------1 --_---- .;, ------==

_...- __ _ SPEED OF 5H1~ ~ "NOTS MODEL 2ee~z RESEARCH VESSEl.- ..s:OULM M€AO ALAI THRUST ---LOADED CONDITION I , ""'T~D ...." DlIIIL.ACEJCNT""""- --.. 20 --LOADED CONDITION . .1 ,

" a- , / ' 1 ...... / l / Appendix figure lB.-Thrust, irregular head seas. -/ , / "i-/ , / / ' / . 10 )/ ~ / '; § .. / j ! t; i ~ ..: - ,

____ ~o 0# ...... IUtOfI

25 _ -= sa~_D ,..~ .-.n...... w.- ,",O!!£b aefO Z RESUltCH VESSEb _eut..M MUD'"

---LQA!!£D cotIOtTION I , 5Ue.~1..7'" J,lL

WtAl"T"""'" , ... SPfL ----bOADED CONOtTICHI[ , ~.f •. ~~~:'''

•• -- " Joc.-.on • ... Appendix figure 19.-Total pitch. irregular head seas •

. --~--:...-----.: .0 -.

of I r .. II ____ Sl'££O OF SM'" .. IUtOTS MODEL 2e1l!! Z RESEARCH VESSEL .ou..u WAlt'ES {=~ =~O:n:O· SUBMERGENCE AND EMERGENCE OF THE BOW

CMt.VT ~ ,.)7 It LOADED CONDITION I OOW"T /OFT tI ••• DIS"'-ACEJoC:WT •• J tOf"l

70 ..

Appendix figure 20.--Submergence and immergence .. of bow in regular waves (load condition II). ~

~

§ 1 snu. 'lllW'E. I I . ~~ __--==~I'''-*====1 o~ •• m I E •

___ S"f:EO OF S HI~ IN kNOTS "

26 r-___~-.=_e~-_--_--- __--~---,------.- --, "':- 1 10400£L 2.1&-- l IIESEAACH IIESSEL

I~"" H£40 SL45

H

LOADED C'OHDITION 1 ::i ~ :: ~ 045~JCfIfT .ootoft

,*""T~ WJ7t\ --LOADED CONOITtON I. : taVT "' " &11\ [MII"\..ACI:!lCHT ... , t.n

'0

---- -~------&_------

------a------

___ SP"EED OF SHI~ IN _NOTS "

Appendix figure 21.-. ,Immergence and submergence of bow. irregular head seas.

15. # 1627

27 _'-=,SG • l .....­ .... _.- • ,",OP£L Uto-- Z ItESEAIICH VUSEL- _ ...... ,. MUD I&Aa

DUll'~ Wft ---LQAP£D COMDITION I .• ~T ..::,:'.,

DUll P'OMIIIIUIO t4SFfl. ---LOADED CONDITIONE · ~'T ,~~:''' . -- ,

-t--­ i ...... •• -- pq • -- Appendix figure 19.-Total pitch. irregular head seas • ..

• 0

---+~-_s. __

.. OU­.. ____. SPEED OF SHI~ .. KNOTS MODEL 268!! Z RESEARCH VESSEL- fECkLU W.... ES {=~ ::~~o~.J~o· SUBMERGENCE AND EMERGENCE OF THE BOW

DRAFT R:IRWtJtO '4. J7 ft LOADED CONDITION I , OOAFT AFT ...... Dls .....c£NE:Jn ... J tOtl

70",

Appendix figure 20.--Submergence and immergence .. of bow in regular waves (load condition 11). E ~ ~ .. § 1 STIlL wtJEA

1 10 ~~-~ ~---=~.'"'~====1Um

E • ~

- _ _ S~ED OF SMI" IN I(NOTS "

26 OLL -, J I MODEL 28S!lZ RESEARCH VESSEL

Of/IJII#T~ 14ft LOADED CONDITION 1 , ~ ." T." Ollfl'LAC1:Ml:HT too tar\

OItAFT ~ M J7f\ --LOADED CONDITION II ' ..... ' 1#' 11 .,~ DtP\.ACa:It4:MT ... ) ton

'0

.--.....~~~------" '.' _____ -=~~===1 ------

STILL ...,.U

------

1l ___ S"EED OF 5MI" IN KNOTS

Appendix figure 21.-, .Immergence and submergence of bow. irregular head seas.

MS. #1627

27 GPO 933.612