A-FRAME - The A-frame is stern mounted and is hydraulically powered from the ship's central hydraulic system. When against its stops, it is designed to withstand a static Safe Working Load (SWL) of 16,400 lbs. The maximum SWL when being moved by the rams is 9,000 lbs. The entire unit is bolted to the deck and may be removed for special applications. It is controlled at the fantail with a hand-operated spool valve located on the starboard side of the A-frame. This controller gives precise speed control and should never be moved abruptly. Please see Appendix "E" A-frame Clearance Diagram for side profile and details of the A-frame reach, clearance and swing.
ACOUSTIC DOPPLER CURRENT PROFILER - The ship has a permanently installed RD Instruments RD-VM series acoustic doppler current profiler. It is mounted to the bottom of the hull just forward of amidships and to starboard of the centerline. The system utilizes the doppler effect to measure currents in the water column. Current profiles can be produced in up to 128 depth cells, each cell being variable from 1 to 32 meters, to a maximum depth of 700 meters. When the bottom is within range an earth-referenced vessel velocity can be obtained which allows for measurement of currents in absolute terms. Data are processed on an IBM compatible PC with two 5 1/4 inch floppy disk drives: one 1.2 mbyte and one 360 kbyte. Current profiles are displayed in real time on a color monitor and a printer is available for hard copies. Users generally provide their own floppy disks for data logging. The system takes inputs from the ship's gyro compass and a Trimble 10X GPS/LORAN-C navigation receiver. Technical assistance may be obtained by contacting the Shipboard Computer Group.
AIR CONDITIONING & HEATING - The ship is equipped with environmental control systems for both the heating and cooling of interior spaces. In labs and common spaces the chief engineer generally controls the heating and air conditioning. Some spaces are equipped with high-capacity air units which are controlled locally. Berthing cabins are equipped with central air and individual ac units and heating units. Individual units are locally controlled by occupants to attain desired results.
ANEMOMETER - There are two indicating systems for wind speed and direction. The system for ship's navigation is an Electric Speed Indicator Co., model F420C. Readouts are located in the pilot house, After Control Room, main and upper labs. Sensors are located on the flying bridge. A dedicated digital scientific system has been installed to supply data to the SAIL Data Acquisition System. Readouts are located in the main and upper labs. The sensor is located midships on the flying bridge.
ANTENNAS - Provisions have been made to accommodate a wide variety of temporary scientific antennas and sensors topside. A large network of scientific wire ways are also provided to make cable runs easy. To minimize radio interference problems check before mounting antennas or running cables.
BOW THRUSTER - The ship is equipped with a Lipps 250HP/184KW 4 blade tunnel thruster. Because of the excellent maneuverability provided by the ship's main propulsion and rudders, the bow thruster is infrequently used.
BULKHEADS - Interior bulkheads in berthing cabins, labs and common spaces are mostly paneled; some are painted steel. All bulkheads are permanent and cannot be removed or rearranged to configure spaces differently. Most lab bulkheads are equipped with unistrut channels on two-foot centers; these facilitate the securing of pieces of equipment. Individuals wishing to post information should do so on the bulletin boards provided in the mess deck and main lab. If something must be posted on a bulkhead, affix it in a manner that does not mar the surface and is easily removed.
BULWARKS - Gunwales (top of bulwarks) are all equipped with 1-inch holes located on 1-foot centers designed for securing cleats, padeyes, etc. Most of the bulwarks are provided with padeyes for attaching instruments, cleats, blocks or for securing equipment. Welding equipment to decks or bulwarks or lashing equipment to pipes, vents, or power cables is not permitted. On the main deck two openings are provided in the starboard bulwark for over-the-side deployments. At the hydro station is a 10' opening used routinely for casts and tows. A bolt-in 48" section of bulwark is located just aft of the propeller, starboard of the A-frame. Be sure to reattach the safety chains across the openings after each use. Lifesaving work vests are required at all times for anyone working on deck while these openings are in use.
CAPSTAN - A movable, electric capstan is normally carried on the fantail on the ship's centerline just aft of the break of the house. Fairleads are available so it can be used in conjunction with blocks rigged to the A-frame. The capstan is driven by a two-speed, reversible motor. It is rated at 5,000 pounds line pull and can haul in at 40 ft/min. A smaller hydraulic capstan can be placed on board when necessary. Users who require this piece of equipment should make their needs known prior to their cruise as the smaller capstan is not normally carried.
CHEMICALS - Many chemicals and solutions routinely used in the labs are legally defined as hazardous materials. Users who bring chemicals aboard are asked to notify the captain and resident technician concerning these materials; they will oversee and, if necessary, assist with the safe stowage of hazardous items. Anyone who brings chemicals on board should bring Material Safety Data Sheets (MSDS) for the particular chemicals. In addition to other information, MSDS provide safety precautions and first-aid procedures for the specified substance and are required by federal law. The captain does maintain a large file of MSDS's; however, he may not have one for the particular substance you are bringing. Various pieces of equipment are provided on board to facilitate the safe use and stowage of chemicals including fume hoods and an explosion-proof reefer. Caution is urged when disposing of used chemicals. A significant portion of the piping throughout the ship is pvc, some drains lead to a holding tank while some lead directly over the side; check with the chief engineer before pouring strong solutions down sink drains. Impact-resistant plastic storage bottles are highly recommended when possible to prevent breakage and potentially dangerous spills.
COMMUNICATION EQUIPMENT - See Section V
COMPRESSED AIR - Low pressure compressed air is available at all weather deck power stations, and in the main lab. (See Appendix "D" Deck Power Stations) All air stations are color-coded yellow for identification. The system's operating pressure is 100 psi. Total capacity is 26 cfm with priority going to main engine controls and air starting systems. This air is not clean or dried and is not suitable for diving usage.
COMPUTER - There is no general purpose computer on board. Portable PC/AT computers are available from Shipboard Computer Group, if requested. The SAIL Data Acquisition System and Doppler Acoustic Current Profiling System have dedicated PC/AT computers.
CRANES - The ship carries one permanently installed crane. Smaller "portable" cranes can be placed on board when necessary. If your operations will require these smaller cranes ensure your needs are known by Marine Facilities well in advance of your cruise. The stern A-frame can be removed to accommodate special-purpose cranes such as ROV towing cranes. Nautilus Model 3300-065 Crane This permanently installed, telescoping-boom crane is on the starboard side of the main deck. It has a maximum reach of 70' in port and 50' at sea. Its weight-handling capacity varies from 4,000 lbs SWL at a 3' radius to 1,500 lbs SWL at 50'. (See Appendix "C" Crane Swing Diagram) Husky Mariner Model M60 Crane This portable, articulated crane can be installed anywhere on the main or 01 decks where it can be connected to the central hydraulic system. (See Appendix "D" Deck Power Stations) Weight handling capacity varies from 2,000 lbs at 6' radius to 1000 lbs at 19'. Daybrook Model PL-6J Crane A number of portable articulated Daybrook Cranes are available and can be installed anywhere on the working decks. They are self-contained units and easy to use, but are aging and are soon to be phased out. Their weight-handling capacity varies from 2,000 lbs SWL at 3' to 1,000 lbs SWL at 14'.
DARK ROOM - See LOWER LAB.
DECK LOADS - The deck load limit is 500 pounds per square foot with a maximum overall scientific equipment payload of about 68 long tons. Included in this figure of 68 LTon are the A-frame and all the winches and cranes presently loaded. Any scientific loads which will approach either of these limits should be discussed with the marine superintendent. Plans can then be made to off load unnecessary winches and other gear.
DISTILLED WATER - Small quantities of distilled water (containing 1-10 ppm chlorides by in-house measure) are available directly from the ship's evaporator for scientific use. It is advisable, though, to provide your own lab water if you require guaranteed purity.
DOPPLER SPEED LOG - See Section V
DRAINS - Drains from the main lab sinks are directed either overboard or into the sewage holding tank. (See CHEMICALS) All other drains go to the holding tank. Deck drains go overboard. Drains from the galley can go either overboard or into the holding tank. If you need absolutely clean water around the ship, arrangements should be made with the chief engineer to secure overboard discharges.
DRY LAB - Main and upper labs are dry for electronic and computer work.
ECHO-SOUNDING SYSTEM - The scientific echo-sounder on New Horizon is based on a Knudsen Engineering, Ltd. model 320B/R sonar transceiver, featuring chirp technology, dual mode operation (10-14 kHz 'HF' and 2-7 kHz 'LF'), and digital signal processing. It has a 166 MHz Pentium computer running Windows 98 as "host", providing the user interface and primary display, while an optional hardcopy may be printed on the system's EPC Labs model 9802 Thermal Graphic Recorder. The system uses one of two hull-mounted EDO model 323B transducers for HF operation and a sixteen element array of Massa model TR-75J transducers for LF operation. In addition to hardcopy, data may be logged in any of three ways: as a user-defined ASCII string, as a grayscale in a proprietary binary format, or in SEG-Y format. The ASCII string may also be provided on a com port.
ELECTRICAL POWER - 440 volt, 3 phase AC power is provided to the main switchboard by two 200kw generator sets powered by GM 8V-71T 1800 rpm engines. During normal operations only one generator is on line, but both can be paralleled for unusual loads of short duration, for a total theoretical power output of 400kW. 110 volt, single phase service (from standard household type outlets) is available in three forms: Standard power for lighting and general purpose loads, including motors: These outlets are labeled regular power or may have an L-XXX designation such as L-101. Clean Power for scientific and other electronic equipment: Free from spikes, transients and surges, this service is provided via special isolation transformers. Please do not connect any "dirty" equipment, such as motors, which feed back through the system to other equipment. Clean Power is available from distribution panels CP-101, CP-102, and CP-104 and their designated outlets located in the main, ocean, and upper labs. Regulated Power for scientific and other electronic equipment: This "super clean" power is provided by a 16kw motor-generator set via distribution panels CP-103A and CP-103B, which are located in the main and upper labs. Outlets are painted blue and labeled "Regulated Power." This system can also be cross-connected with regular power when not in use, so it is advisable to check with the chief engineer before connecting sensitive equipment. Both the clean power and the regulated power systems are designed to provide protection against variations in voltage but cannot provide protection against variations in frequency. Though the ship's generators are equipped with electronic governors and other controls which maintain frequency over a wide load range, it is impossible to completely eliminate the small frequency variations caused by sudden load changes which are inherent in ship operation. Both 440-volt 3 phase and 110-volt standard single-phase services are available from various outlets on deck. (See Deck Power Stations in Appendix D) These are marine outlets and require special connections. These can be supplied by the chief engineer and must returned after use. There is also a 208 volt, 3-phase, 30-amp distribution panel located in the main lab. It has 20-amp circuits feeding outlets located in the upper, ocean, and wet labs and also on the port-side 01 deck at the van storage area. If you have additional electrical power requirements please make advance arrange-ments.
EXPLOSION-PROOF REFRIGERATOR - See SCIENTIFIC SAMPLE REFRIGERATORS
FLOODLIGHTS - Night lighting is provided to illuminate all working deck areas. Switches are next to the double doors in the ocean lab for fantail lights, and in the aft control room for the hydro station and 01 deck. Ask bridge before turning on any lights. This is to alert them that work is being conducted so a safety watch can be posted. Also, a sudden concentration of lights can impair night vision. Please remember to turn off the lights when finished and notify the bridge so they know you are safely inside.
FRESH WATER - The ship carries 8,736 gallons of fresh water and can produce up to 960 gal/day. This is a two-part system, the potable water and the wash-water systems. Potable water is supplied through filters to the galley, ice machine, and drinking fountains. The wash-water goes to all sinks, showers and deck connections and is not recommended for drinking. Conserve water at all times. It will be announced if the need to restrict water occurs. (see DISTILLED WATER)
FUME HOODS - There are two fume hoods, one in the main lab and one in the ocean lab. These are conventional laboratory hoods for use with hazardous chemicals. The ocean lab's hood is equipped with a sink. Both hoods draw in air from the lab and exhaust it via outlets on the port side of the 01 deck forward of the stack. If the exhaust from your chemicals or operations is particularly hazardous, it may become necessary to secure the area around the exhaust outlets on the 01 deck.
GASES - There is no built-in supply of laboratory gases. Bring your own cylinders, regulators, and hoses for gases. Stands are available to store a number of cylinders safely on deck. It is against the law to store any flammable, combustible or hazardous gases in labs. Secure all cylinders before sailing.
HYDRAULIC SYSTEM - All the ship's topside weight-handling equipment is hydraulically powered; this includes all winches, the crane, the A-frame and J-frame and the anchor windlass. All of these pieces of equipment are on the same hydraulic loop. Caution must be exercised in that, if too many pieces of equipment are operated simultaneously, system pressure will be reduced, thus affecting the speed and capability of the gear. Primary power for the system is provided by a 60-hp pump; this pump is more than adequate for the great majority of operations the ship under-takes. A 100-hp pump is available, however, it is generally reserved for special applications and operations of short duration. In most cases a crew member or resident rechnician will operate any hydraulically driven equipment as the need arises. If, on occasion, another scientific member requires use of the system, it is requested that the following procedures be observed: notify the bridge when the system will be used and what piece of equipment is to be operated. Energize the system only when you are ready to begin operating the equipment. when you're finished operating the equipment, secure the pump and notify the bridge. it is important to avoid running the hydraulic pump when equipment is not actually being operated in order to minimize wear on the system. when using hydraulic controllers it is important to make all changes smoothly and gradually to avoid shock-loading the system.
HYDRO-BOOM - An inverted J-frame style hydro-boom is available for over-the-side operations. It is located amidships outboard of the hydro-station. It was originally designed for piston cores but has been updated for other applications with a SWL of 10,000 lbs. Vertical height to the padeyes is 17'6", outboard reach 7'6", inboard reach, 5'0. Power is provided by the central hydraulic system, and controlled by the winch driver. It is routinely rigged with one 18", counter-balanced towing sheave designed for use with .25" mechanical, .225" electro-mechanical, and .322" electromechanical wires; and a second standard 18" .322" CTD block. Other blocks are available. (see Appendix "F" J-frame Clearance Diagram)
HYDRO-BUCKET - A swinging hydro-bucket is located on the starboard side below the hydro-boom for working equipment on the Hydro or CTD wires. Use caution when using this over-the-side platform. Securely lock it in position before use and make sure all personnel have work vests. When in the bucket stand out of the line of sight of the winch driver and assist view with hand signals when instruments are near the surface. Keep in mind that winches will not stop instantaneously.
ICE - There is up to 670 lbs of crushed ice per day available from the ice machine located in the mess deck. This ice is available for scientific purposes. If large quantities are needed check with the cooks for storage arrangements. This ice is used for human consumption, so please do not introduce any foreign object. Use the scoops provided; not drinking cups or hands.
INSTRUMENT WELL - Access to the instrument well is on the 01 level starboard of the center-line and just forward of the hydro winch. It has a 41-inch internal diameter and extends vertically down through the bottom of the hull. The distance from the 01 deck to the skin of the ship is 23 feet, 5 inches. The well is available for most any purpose a user might dream up. Many users deploy transducers and hydrophones from this well. There are padeyes near the top of the well for suspending gear and an access for passing wires directly to the main lab.
LABORATORIES - See Section III.
LAUNDRY FACILITIES - See Section III.
MAIN ENGINES - New Horizon is powered by two 850-hp Caterpillar Marine Diesel Engines model D-398. These engines are considered clean and quiet-running. A small amount of soot can be expected on the fantail when first getting underway after a prolonged idle time. Make sure you cover up any sensitive gear before getting underway. It is standard practice to save fuel by shutting engines down when not needed for two or more hours. Notify bridge 30 minutes in advance to allow them to prepare a cold engine for use.
MAST - The main mast is located on the 02 deck, aft of the bridge. It contains all of the antennas for satellite, GPS, Loran-C, and radio direction-finding navigation. In addition it has a limited amount of space available for other antennas or sensors. The tops of the after control room and pilot house are also available for mounting antennas. Check with the captain as indicated in ANTENNAS above.
NAVIGATION SYSTEMS - See Section V
POWER STATIONS - At various exterior locations on the main and 01 decks there are power stations. Every station has most of the following items available: 110 vac, 1 phase, 50 amps (Not clean power.) 440 vac, 3 phase, 50 amps (Not clean power.) Salt Water, 3/4" male hose connector, color-coded green. Fresh Water, 3/4" male hose connector, color-coded blue. Low-pressure compressed air, most equipped with 3/8" quick-disconnect fittings, color-coded yellow. "B" System hydraulic lines, supply is 1 1/2", return is 2" and drain 1 1/2". Constant pressure on this system requires an open-center control. The electrical power stations are equipped with waterproof covers; ensure that they are in place when the outlets are not in use. Some outlets require special connectors or plugs. A ship's engineer or shop electrician will wire all connectors and make hook-ups to ship's power. Any special connectors or plugs provided by the ship must be returned at the end of your cruise. Hook-ups to the hydraulic loop will be made by a ship's engineer or a shop mechanic. Precautions must be taken to preclude the introduction of contaminants into the system and to ensure that user-supplied hydraulic gear is compatible. Never use power stations as tie-down points for other gear.
PROPULSION - The ship is propelled by twin Heimdal controllable-pitch propellors. Thrust is infinitely variable from zero to top speed both ahead and astern. The variable-pitch propellors coupled with two large rudders provide the ship with a high degree of maneuverability. During normal underway operations the propellors are clutched in and turning continuously at at least 200 rpm, even though the ship may be stopped on station with no pitch on the propellor blades. All embarked personnel are urged to locate the red zones on the main deck gunwales aft labeled "DANGER PROPELLORS." At all times avoid deploying lines and equipment over the side in the vicinity of these red zones. In order to avoid fouling equipment with the propellors, always notify the mate on watch before putting anything over the side.
RADARS - See Section V.
RADIOACTIVE MATERIALS - See Section VIII.
RADIO/TV - New Horizon is equipped with a ship-wide distribution system for the reception of SW/AM/FM & TV signals. Outlets are provided in staterooms; although improvements are being made, not all are operational. Public TV's are available for viewing in the mess deck and library. To connect to the system you need 300 ohm wire for AM/SW and 75 ohm coax for FM and TV.
SAIL DATA ACQUISITION SYSTEM - The SAIL (Serial ASCII Instrumentation Loop) is a datalogging system used to record ship's navigational parameters and meteorological variables. The system is PC-based and data are collected at a user-specified rate and can be written to 5-1/4 inch floppy disks. The system is in the upper lab. The standard configuration is to log: date, time, doppler speed log, gyro compass, Trimble 10X gps/loran receiver message, wind speed and wind direction. Special arrangements can be made with the Shipboard Computer Group so the system can also log data from a pyrgeometer (Infrared Radiometer) and from a Black and White pyranometer (Short wave radiation). Other type of data can be easily interfaced, and several different types of SAIL modules are installed in the system for use by the current scientific party. Contact the Shipboard Computer Group (619) 534-6054 for more information.
SALT WATER SYSTEMS - The vessel is equipped with two sources of seawater. Regular seawater from the ship's supply is available at numerous outlets, color-coded green, on the main and 01 decks. (See Appendix "D") The switch to the saltwater pump is located inside the door to the engine room just off the fantail. Please secure it when not in use. Uncontaminated saltwater, about 10 gpm, is available to sinks in the main, ocean, wet and lower labs. The intake sea-chest is made of stainless steel and is located in the bow 9 feet below the water line. The main sea valve is bronze with primarily pvc piping. The pump is non-metallic and is located in the bow-thruster room. It can be started and stopped by a switch in the ocean lab. Check with the chief engineer when requiring this system. Please shut it off when not in use.
SAMPLE STORAGE FACILITIES - For cold storage of scientific samples the following refrigerators or freezers are standard equipment.
SCIENTIFIC WALK-IN FREEZER - See Section III.
SCIENTIFIC SAMPLE REFRIGERATOR - The main lab is equipped with a 24 cu ft Kelvinator explosion-proof refrigerator for the storage of small quantities of flammable chemicals, marine specimens or samples. A variety of other small portable refrigerators are available, contact the Resident Technician Group for information.
SMALL CHEST FREEZERS - The main lab is also permanently equipped with an 18 cu ft chest freezer located next to the explosion-proof refrigerator. Other small chest freezers can be provided by the Resident Technician Group upon request.
SCIENTIFIC WIRE WAYS - These special wire ways are used to facilitate passage of scientific cables between labs and working decks. The ship is equipped with a wide network of these wireways. (See Appendix "G") This system is set up to prevent the stringing of cables through watertight doors, which is unsafe and not permitted. Please remove all installed wires when you leave.
SEARCH LIGHTS - Two high-power search lights are located on top of the bridge to facilitate night-time instrument recoveries. It is recommended, however, that all recoveries be planned for daylight hours.
STERN RAMP - Located under the A-frame is a 12' wide X 7' long X 3' deep sloped stern ramp. It extends from the main deck to the water's edge. It is useful for launching and recovering instruments as well as large trawl nets. A solid deck insert, flush with the main deck, is normally carried over the stern ramp. It is bolted in place and cannot be removed at sea. If your operations require use of the stern ramp, the solid deck insert must be removed by crane before the ship leaves the dock.
TIE-DOWN ARRANGEMENTS - A number of features are built into the ship to facilitate the securing of equipment. The main and 01 decks are equipped with a grid of 1", no.8 nc threaded sockets on two-foot centers. A few subareas are on one-foot centers. A collection of hardware is carried for use with these sockets including bolts, centering pins, eyebolts, padeyes, fairleads and cleats. The bulwarks and bulkheads surrounding the fantail are equipped with permanently attached cleats and padeyes. The caprail on the bulwarks has 1" holes drilled on one-foot centers over its entirety. Cleats, padeyes, shackles, etc. can be attached to the caprail. The main and ocean labs are equipped with 1/2-inch deck sockets on two foot centers. The upper lab has 3/8-inch sockets also on two foot centers. As with the exterior decks, a variety of hardware is available for use in conjunction with the sockets. The bulkheads and over-heads of all labs are outfitted with Unistrut rails on two-foot centers. Adjustable padeyes and bolts are provided for use with the Unistrut rails. All these tie-down and fastening systems are quite versatile and most all scientific gear can be secured using one or a combination of these systems. In general, welding equipment to the decks and bulkheads is not permitted. Permission to do so must be obtained from the Marine Superintendent.
TOOLS AND SUPPLIES - The ship carries tools, supplies and expendable items for normal operations and anticipated consumption. The crew manages tools and supplies used in the maintenance and operation of the ship. The Resident Technicians manage tools and supplies commonly utilized by the scientific party. While the ship can provide shackles, wire, line, paper and other items in time of need, it should not be viewed as a floating hardware store. Ship users are requested to prepare well and supply their own hardware and special tools in sufficient quantity for their cruise.
WATERTIGHT DOORS (WTD's) - A number of hinged watertight doors are installed on the main deck. Two sliding, hydraulically operated WTD's are installed on the A-deck. These doors prevent the ingress of water and/or the spread of flooding and fire. The hinged doors are very heavy and awkward and care must be exercised when passing through any hatch equipped with one of them. Always ensure that the door is securely closed and dogged behind you or that it is securely hooked open with the latch. An unsecured WTD in a seaway is extremely dangerous.
WELDING - New Horizon carries equipment for both gas and arc welding. Due to the special hazards associated with welding, any welding at sea must be approved by the captain and will be performed by a ship's engineer. When in port in San Diego, welding will normally be performed by a MarFac welder.
WINCHES - The ship is normally outfitted with three winches; Hydro, CTD and Coring/Trawl winch. Any of these may be removed to increase carrying capacity for scientific gear. This is costly and time-consuming; if this is necessary for your cruise, ensure that MarFac is informed well in advance of your cruise. All winches are powered hydraulically and are on the same hydraulic loop as other deck and weight-lifting gear. For most operations the loop is powered by a 60-hp pump. All winches are controlled from the aft control room by a member of the deck department. A remote winch controller can be deployed to the main lab for ROV operations. Digital readouts for line out, tension and wire speed are located in aft control and the main and upper labs. Analog readouts for tension are installed in aft control and the main lab. Below is a listing of each winch's standard operating configuration and capabilities.
- HYDRO WINCH - The hydro winch is a Markey model DUSH-4, which is normally equipped with approximately 8,000 meters of 1/4 inch 3X19 hydrographic wire. A spare drum of 0.225-inch electromechanical wire is available; however, it is not carried on board. The desired wire/drum must be in place on the winch when the ship leaves port. The winch has a high and a low gear and is normally operated in low gear; this yields maximum wire speeds of about 60 meters/min when operating on the 60-hp pump. The safe working load of the hydro wire is 3,000 pounds.
- CTD WINCH - The CTD winch is a Markey model DUSH-6, which is equipped with approximately 9,500 meters of 0.322-inch, three-conductor electromechanical wire. The winch has a high and a low gear and is normally operated in high gear; this yields maximum wire speeds of about 60 meters/min when operating on the 60-hp pump. With the 100-hp pump on line, wire speeds in excess of 100 meters/min are theoretically possible. Maximum wire/winch speeds will be governed by the sink rate of the instrument attached to the end of the wire. Experience has shown that for the average CTD rosette, maximum speed on paying out is about 55 meters/min. If it is necessary to haul in at speeds higher than 55 meters/min, it is strongly recommended that users provide a swivel termination with slip rings between the wire and the instrument to avoid excessive wear and damage to the CTD wire. Here again, experience has shown that hauling in at high speeds without a swivel damages the wire by causing it to unlay and/or develop kinks. The safe working load of the CTD wire is 7,700 pounds.
- CORING/TRAWL WINCH - The trawl winch is a Western Gear model DSWH 150E, which is normally equipped with approximately 9,500 meters of 9/16-inch 3X19 trawl wire. A spare drum of 0.680-inch, single-conductor electromechanical wire is available; however, it is not carried on board. The desired wire/drum must be in place on the winch when the ship leaves port. On the 60-hp pump, the winch is capable of wire speeds of 100 meters/min; however, most users prefer to operate in the range of 50 to 60 meters/min or less. Here again, maximum wire speeds will be governed by the sink rate of the scientific package. The safe working load of the 1/2-inch trawl wire is 19,000 pounds; however, the maximum dynamic line-pull capability of the winch is only 8,000 pounds.
WORK OR EMERGENCY BOATS - New Horizon is equipped with or has available an assortment of workboats and outboard motors, some of which are detailed below. Contact the Res Tech Group for availability.
- 17' BOSTON WHALER This large workboat, equipped with a 50-hp Johnson outboard, is set up primarily as a launch for transferring personnel or supplies to shore or another vessel.
- 14' ZODIAC Two inflatables are available and can be equipped with a 25- or 9.9-hp Johnson outboard. One Zodiac is routinely carried aboard.
- 13' BOSTON WHALER This workboat is powered by a 25-hp Johnson outboard and is carried when required and/or when deck space allows.
All boats operated from New Horizon are provided with VHF radios in order to stay in contact with the ship. All personnel embarked in small boats must wear personal flotation devices at all times.