Attachment 3 DRAFT Kwajalein Harbor Tug Purchase Description 2022 10 26.docx

Kwajalein Harbor Tug Purchase Description

1. Scope. This specification sets out requirements for a Harbor Tug (boat) for use in support of US Army activities in the Kwajalein Atoll. The Harbor Tug is used to move a barge to transport fuel and other supplies throughout the Atoll. The tugboat will be used to move approximately 2.6 million gallons of fuel per year. The tug will also be used to assist commercial and military ships moving into and out of the harbor, assist with commercial barge movement

2. Applicable Documents The following documents contain information necessary to comply with the requirements of this Purchase Description. Documents listed below may incorporate other specifications, standards, and other documents by reference; this list should not be regarded as a complete specification of required documents.

· American Bureau of Shipping – ABS Rules for Building and Classing Marine Vessels

· US Code of Federal Regulations – Title 46

· Kwajalein Barge Purchase Description

3. Requirements

3.1. General Description. The Harbor Tug shall have the capability to operate in protected harbors with limited draft, assist larger vessels entering and leaving the harbor, and tow and maneuver a barge (to include the Kwajalein Fuel / Cargo Barge). The Harbor Tug shall have the capability to operate in open ocean waters to meet and assist other vessels and for other purposes. The Harbor Tug shall be equipped with two marine diesel engines and shall provide accommodation for 6 crew members. The Harbor Tug shall be equipped with air conditioning suitable for operation in the South Pacific.

3.2. Certifications. The Harbor Tug shall be built in accordance with American Bureau of Shipping (ABS) requirements and shall be classified with the following symbols and notations:

· ✠A1

· Towing Vessel

· ✠AMS

· ✠ABCU

· Line Cutter Hull construction, manufacture of machinery and components and any required testing, as applicable, shall be carried out under ABS survey; and the Maltese Cross (✠) shall be applied to applicable certifications including A1, AMS, and ABCU.

3.3. Regulatory. The Harbor Tug shall comply with the applicable requirements of Title 46 of the US Code of Federal Regulations (CFR) including Chapter I Subchapter I and Subchapter M, as applicable. The Harbor Tug is a vessel intended to move tank barges carrying oil or hazardous material in bulk and shall comply with CFR and ABS requirements for such a vessel. The vessel shall comply with regulations under other sections of the CFR, including Title 33, as applicable to such a vessel. For regulations limited to vessels operating in US waters, the vessel shall be considered to be operating in US waters.

3.4. Dimensions

3.4.1. Length. The Harbor Tug shall be at least 65’ in length overall (LOA), and no more than 80’ LOA.

3.4.2. Draft. The vessel draft, plus a margin to allow for operation of propulsion equipment, shall be no greater than 13’0”. The Harbor Tug shall be maneuverable in water no deeper than 13’0” and shall be capable of full power operation with no damage or degradation to vessel in water no deeper than 14’0”.

3.4.3. Beam. The molded breadth (width) of the vessel shall be no greater than 35’.

3.4.4. Freeboard. The vessel shall have not less than 2’ of freeboard.

3.5. Tank Capacities and Pumps.

3.5.1. Fuel. The Harbor Tug shall have usable fuel capacity sufficient for voyages of not less than 3000 nautical miles when towing the barge described in the Kwajalein Barge Purchase Description, with the barge in a lightship condition, to include operation of the generator(s) with all typical underway loads for not less than 15 days, plus 15% reserve fuel capacity. The vessel shall be equipped with at least two fuel oil service tanks for each type of fuel used onboard. Each service tank is to have a capacity of at least eight (8) hours at maximum continuous rating of the propulsion plant(s) and normal operating load at sea of the generator plant(s) serviced by the tank. The vessel shall be equipped with fuel transfer pumps and lines suitable for transfer of fuel between storage tanks, from storage tanks to service tanks, and between the fuel oil purifier(s) and storage and service tanks.

3.5.2. Lube Oil. The Harbor Tug shall have one or more fixed tank(s) for lubricating oil. Lubricating oil tank(s) shall have a total capacity sufficient to complete two (2) oil changes on each vessel engine, reduction gear, and generator. The vessel shall be equipped with a lubricating oil transfer pump and lines suitable for transfer of fresh lubricating oil to each main engine, each generator, and each reduction gear. If vessel engines, reduction gears, and generators use different grades of lubricating oil, the vessel shall be equipped with a tank dedicated to each grade of oil with the total required tank capacity split between the tanks in proportions appropriate for the vessel machinery requirements.

3.5.3. Hydraulic Oil. The Harbor Tug shall have a fixed tank for hydraulic oil. Hydraulic oil tank shall have a total capacity of not less than 250 gallons. The vessel shall be equipped with a hydraulic oil transfer pump and lines suitable for transfer of fresh hydraulic oil to each hydraulic power unit.

3.5.4. Slop, Sludge, and Oily Waste Tanks. The vessel shall have fixed tank(s) for oily bilge water, sludge produced by fuel purification, and other oil waste products as required by ABS, CFR, and USCG requirements. Tanks shall be sized to support operation for not less than 15 days at sea and voyages of not less than 2500 nautical miles without offloading of waste.

3.5.5. Waste oil. The Harbor Tug shall have fixed tank(s) for waste oil. The waste oil tank(s) shall have a capacity of not less than the combined capacities of the lubricating oil tank(s) and the hydraulic oil tank, plus 10%. The vessel shall be equipped with a waste oil transfer pump and lines suitable for transfer of dirty / waste oil from each vessel engine, reduction gear, generator, and hydraulic power unit.

3.5.6. Potable Water and Hot Water. The Harbor Tug shall be equipped with fixed tanks for potable water. The potable water tanks shall have a total capacity of not less than 4500 gallons. The vessel shall be equipped with a one or more water heaters with combined capacity of not less than 50 gallons hot water. The vessel shall be equipped with pump(s) and lines supplying hot and cold water to all vessel fixtures. Potable water and hot water systems shall be in accordance with ABS requirements.

3.5.7. Black and Gray Water. The Harbor Tug shall be equipped with a fixed tank for black and gray water (sewage). The black water tank shall have a capacity of not less than 1000 gallons.

3.5.7.1. Gray Water Discharge. The vessel shall be equipped with valves and piping to allow the discharge of gray water overboard without discharge of black water overboard.

3.6. Machinery. Main engines and generators shall be Caterpillar or equal. An equal substitution for Caterpillar engines shall match the maintainability of Caterpillar engines with personnel and equipment located on the Kwajalein Atoll, to include a similar number of manufacturer-qualified technicians already located in the vicinity with access to manufacturer proprietary diagnostic information and equipment; and shall have a similar level of commonality with existing infrastructure in the Kwajalein Atoll.

3.6.1. Main Engines. The Harbor Tug shall be equipped with two marine diesel engines, rated at not less than 1300 brake horsepower (BHP) each, or sufficient to meet bollard pull, speed, and other requirements of this specification, whichever is greater. Engines shall be rated for continuous duty at rated load and speed up to 100% of the time without interruption or load cycling. Engines shall meet EPA Tier III standards and shall be operable on Diesel Fuel #2 (DF2). Engines used in the Harbor Tug qualify for an automatic National Security Exemption under 40 CFR 1068.225 (a)(4).

3.6.2. Reduction Gears, Shafting, Propellers, Rudders. Reduction gears, shafting, propellers and rudders shall be selected to meet performance requirements for the vessel. Reduction gears shall be selected and integrated in accordance with main engine manufacturer requirements. Propeller shafts shall be made from Aqualoy 22 or equal. Salient characteristic of an equal substitution for Aqualoy 22 is corrosion resistance in the intended application. Propeller shafts, including material, shall comply with ABS requirements. Propellers shall be made from Nickel-Aluminum Bronze (NiBrAl) conforming to ABS Type 4 material requirements for propellers and propeller blades. The vessel propellers or shafts shall be equipped with line cutters that comply with the requirements of 4-3-2/17 of the ABS Rules for Building and Classing Marine vessels.

3.6.3. Propeller Nozzle. The vessel shall be fitted with ducted propellers, commonly referred to as Kort nozzles. Nozzle profile, size, and other design factors shall be selected to maximize vessel propulsion efficiency and bollard pull.

3.6.4. Generators and Electrical Distribution. The Harbor Tug shall be equipped with two Ships Service Diesel Generators (SSDGs) rated at no less than 65 electric kilowatts (ekW) output each. Generator size shall be selected based on vessel electrical loads IAW ABS requirements. Generators shall be sized to support vessel electrical loads on one generator. Electrical power shall be 480VAC, 60 Hz, 3 phase. The vessel switchboard(s) shall comply with ABS and CFR requirements. The vessel shall also be capable of operating on 480 VAC 60 Hz 3 phase shore power.

3.6.4.1. Emergency Generator. The vessel shall be equipped with an Emergency Diesel Generator (EDG). The EDG shall be sized and installed IAW ABS and CFR requirements for a backup or second power source.

3.6.5. Engine Cooling. Cooling of main engines, reduction gears, and SSDGs shall be by keel coolers. Keel coolers shall be sized to maintain main engine jacket water and aftercooler (if applicable) temperatures, and reduction gear temperatures, in accordance with engine manufacturer specifications in 95°F seawater at no greater than 1 knot flow across the coolers. Coolers for generators shall be sized to maintain generator jacket water and aftercooler (if applicable) temperature in 95°F seawater at 0 knot flow across the keel coolers (ie: still water, convective flow only).

3.6.6. Engine Room Ventilation. Engine room supply and exhaust ventilation shall be provided. Engine room ventilation shall be designed and arranged to maintain a safe temperature in engine spaces and to provide adequate intake air and cooling air flow to support full continuous full power operation of engines and at least one SSDG.

3.6.7. Fuel Monitoring. The vessel shall be equipped with tank level indicators for all fuel tanks, with high and low level alarms for service tanks.

3.6.8. Fuel Oil Purifier. The vessel shall be equipped with one or more fuel oil purifier(s) capable of processing fuel at no less than twice the average rate of consumption; I.e. no more than 4 hours of operating the fuel oil purifier shall provide clean fuel to support no less than 8 hours of vessel operations.

3.7. Performance

3.7.1. Speed. The Harbor Tug shall be capable of sustained maximum speed of no less than 10 knots in sea state 3 when not towing. The Harbor Tug shall be capable of sustained speed sufficient to complete a 2500-nautical-mile voyage in no more than 14 days, in sea state 3, while towing the Kwajalein Barge described in the Kwajalein Barge Purchase Description, with the barge in a lightship condition.

3.7.2. Bollard Pull. The Harbor Tug shall be capable of no less than 36 Short Tons (72,000 lbs force) bollard pull. Bollard pull shall be verified by an approved bollard pull test IAW ABS requirements.

3.7.3. Range. Vessel shall have a range of no less than 3000 nm, when towing the barge described in the Kwajalein Barge Purchase Description, with the barge in a lightship condition.

3.8. Deck Equipment

3.8.1. Forward Hawser Winch. The Harbor Tug shall be equipped with a hydraulically-operated hawser winch located forward, equipped with a single drum. The hawser winch drum shall have capacity for not less than 600 feet of 4” circumference line. The hawser winch shall be capable of line pull force suitable for maneuvering vessels of size and weight comparable to the barge described in the Kwajalein Barge Purchase Description.

3.8.2. Aft Towing Winch. The Harbor Tug shall be equipped with a hydraulically-operated towing winch located aft, equipped with a single drum to include a capstan. The towing winch shall be equipped with not less than 2000 feet of 1.75” - 2.00” diameter wire. The towing winch shall be capable of line pull force approximately equal to bollard pull force.

3.8.3. Tow Pins and Roller. The Harbor Tug shall be equipped with tow pins, a hook, and a roller. Towing fixtures shall be in accordance with ABS requirements.

3.8.4. Hydraulic Power Units. Primary hydraulic power for the winches, and any other hydraulically operated equipment, shall be by electrically-driven hydraulic power units. Hydraulic power units shall be sized to provide adequate flow and pressure to enable hydraulically-operated vessel equipment to satisfy performance requirements. A hydraulic power unit shall be provided for each winch. Backup power for hydraulically operated equipment shall be provided. Backup power may be from a separate electrically driven hydraulic pump or from hydraulic pump(s) driven by vessel engines or generators.

3.8.5. Anchoring, Mooring, and Towing Equipment. The vessel shall be equipped with anchoring, mooring, and towing equipment IAW ABS requirements. The vessel shall be equipped with a forward staple and no fewer than four (4) double bitts. Staple and bitts shall be IAW ABS requirements for towing vessels under 90m.

3.8.6. Pad-eyes. The vessel shall be equipped with pad-eyes located, and with sufficient rated strength, to serve as attachment points for a gob wire or rope and for securement of the anchor.

3.8.7. Fendering. The vessel will be subject to impact loads during routine operation and shall meet ABS and CFR requirements applicable to such a vessel. Suitable fendering shall be permanently installed around the entire perimeter of the vessel.

3.9. Electronics and Navigation. The vessel shall be equipped with navigation equipment, lighting, and other equipment as necessary to meet the USCG, ABS, and CFR requirements for a vessel of its size and type, regardless of specific citation in this document. The following listing of electronic and navigation equipment is in addition to legal and regulatory requirements, which shall be complied with.

3.9.1. Chart Plotter and Radar. The vessel shall be equipped with a networked navigation system consisting of multifunction displays, each capable of displaying data from networked sensors. Networked sensors shall include not less than two GPS antennas, a depth sounder / echo sounder transducer, not less than 2 x-band radar antennas, a satellite compass, an anemometer, and an Automatic Identification System (AIS) transponder.

3.9.1.1. Multifunction Displays. The vessel shall be equipped with not less than two multifunction touchscreen navigation displays. One display shall be not less than 12” nominal size, measured diagonally. One display shall be not less than 19” nominal size, measured diagonally. At least one display shall be operable with redundant controls separate from the touchscreen. Both displays shall be capable of displaying information from any networked sensor.

3.9.1.2. Radar. The vessel shall be equipped with not less than two solid-state doppler radars. One radar shall have power output not less than 25 watts, with a 24” radome. One radar shall have power output not less than 200 watts, with a 4 foot open array antenna.

3.9.1.3. Anemometer. The vessel shall be equipped with an anemometer / weather station providing measurements of wind speed, wind direction, and air temperature.

3.9.1.4. Automatic Identification System (AIS). The vessel shall be equipped with a Class A AIS transponder. The vessel’s AIS transponder shall meet or exceed applicable SOLAS and US regulatory requirements for the vessel’s size, type, and purpose.

3.9.2. Autopilot. The vessel shall be equipped with an autopilot suitable for the type and size of vessel. The autopilot shall be capable of controlling the heading and track of the vessel.

3.9.3. Global Maritime Distress and Safety System (GMDSS). The vessel shall be equipped with a complete GMDSS-compliant communications console for use in sea areas A1, A2, and A3.

3.9.4. VHF / Loudhailer. The vessel shall be equipped with a VHF radio with loudhailer function. The VHF radio with loudhailer shall be installed in addition to VHF radios required for the GMDSS.

3.9.5. Emergency Position Indicating Radio Beacon (EPIRB). The vessel shall be equipped with a Category I EPIRB with integral GPS receiver.

3.9.6. Satellite Voice / Data Communications. The vessel shall be be equipped with a satellite voice and data communications equipment, providing data connectivity up to a speed of not less than 150 kbps. Connectivity shall be by Inmarsat or equal satellites. The salient characteristics of Inmarsat satellite connectivity are network coverage, speed, and reliability.

3.9.7. Searchlight. The vessel shall be equipped with a searchlight, directable from the vessel's main steering station and capable of illuminating objects at a distance of at least two times the length of the tow.

3.9.8. Lighting. Lighting in vessel spaces shall be suitable to task performance and shall facilitate movement in the space. Lighting shall provide adequate illumination for the safety and well-being of the crew as well as for the various tasks performed onboard the vessel. ABS Guide for Crew Habitability on Workboats may be used as a guide.

3.10. Accommodations. The vessel shall be equipped with not less than 3 staterooms suitable for two persons each, with not less than 6 total berths. Each stateroom shall include a locker for each berth and at least one seat. At least one stateroom shall include a desk. The vessel shall be equipped with a bathroom, with toilet, sink, and shower facilities. The vessel shall be equipped with a galley, with cooking facilities, sink, and refrigeration (including freezer) suitable for voyages up to 14 days with 6 crew. The vessel shall have a mess area. Refrigerator(s) and freezer(s) shall be Cospolich or equal. An equal substitution for Cospolich shall have similar parts availability through the Army supply system and similar commonality with existing equipment on vessels operated by USAG-Kwajalein Atoll.

3.11. Systems and Outfitting

3.11.1. Heating, Ventilation, and Air Conditioning (HVAC). The vessel shall be equipped with a chilled-water air conditioning system suitable for operations in the South Pacific. Cooling shall be provided to all occupied spaces of the vessel. The heating and air conditioning systems shall be sized to maintain air temperatures in occupied spaces between 68°F and 80°F in ambient temperatures as low as 30°F and as high as 110°F

3.11.2. Compressed Air. The vessel shall be equipped with air compressors and reservoirs IAW ABS and CFR requirements. Compressed air connections shall be provided throughout the machinery spaces and on the main deck.

3.11.3. Marine Sanitation Device. The vessel shall be equipped with a marine sanitation device capable of processing not less than 350 gallons of sewage per day.

3.11.4. Bilge Water. The vessel shall be equipped with an oily-water separator designed to reduce oil content of effluent to less than 15 parts per million without dilution. The vessel shall be equipped with bilge pumps and associated equipment as required by the Environmental Protection Agency regulation EPA 800-R-11-007, the International Convention for the Prevention of Pollution from Ships (MARPOL), and all subsequent references. The vessel’s oily-water separator shall be tested and approved IAW CFR requirements.

3.12. Corrosion Protection

3.12.1. Painting. The vessel shall be painted in accordance with the paint schedule, provided separately. All coatings shall be applied IAW manufacturer recommendations for that coating, to include appropriate surface preparation, cleaning, environmental conditions, and other restrictions as noted by the coating manufacturer. Coatings shall be as specified in the paint schedule (by brand and product) or equal. The salient characteristics of an equal substitute paint schedule are corrosion resistance, compatibility between coats, film thickness, and color. Due to the service location of the vessel, special emphasis should be paid to corrosion resistance. Deviation from the paint schedule, including deviation from stated brand names, shall be by Government approval only.

3.12.2. Cathodic Protection. The vessel shall be equipped with a cathodic protection system comprised of galvanic anode cathodic protection or a combination of galvanic anode and impressed current cathodic protection. The cathodic protection system shall be designed so that there is complete control over any galvanic coupling. ABS Guidance Notes on Cathodic Protection Systems may be used as a guide.

3.12.3. Piping. Piping materials and coatings shall be selected to minimize corrosion. Black iron piping shall not be used. Piping systems shall have corrosion performance approximately equal to copper-nickel piping.

3.12.4. Pumps. Internal components of pumps, including impellers, in contact with seawater shall be constructed of non-corrosive materials.

3.13. Fire and Safety

3.13.1. Fire and safety equipment. Fire and safety equipment shall be IAW ABS requirements. No less than two fire axes shall be provided. The vessel shall be delivered with all safety equipment needed to meet United States Coast Guard requirements, to include life jackets, life rings, signal flags, signal flares, and first aid kits.

3.13.2. Life Raft. The vessel shall be equipped with two cradles suitable for a standard Navy 25-man life raft. One cradle shall be located on each side of the vessel.

3.13.3. Work Boat. The vessel shall be equipped with a work boat. The vessel shall be equipped with a suitable davit and other fixtures for launching and retrieving the work boat while underway.

3.13.4. Davit. The vessel shall be equipped with suitable davits for handling equipment, located to ensure safe handling of any equipment for which it is intended to be employed (eg: the anchor, if a separate windlass is not provided). The work boat davit described above may be used to fulfill this requirement if it is located and sized appropriately.

3.13.5. Firefighting. Vessel fire extinguishing and firefighting systems and equipment shall be IAW ABS and CFR requirements for ships above 150 gross tons. The vessel shall be equipped with fire monitors meeting ABS MRV 5D-4-1/3.5 TABLE 1 requirements for FFV 1 vessels, with fire pumps, sea chests, mains, and other equipment sized and arranged accordingly. FFV certification is not required for the vessel.

4. Verification

4.1. ABS Survey and Certification. Verification of conformance to requirements in this purchase description shall be IAW ABS requirements for certifications required by this Purchase Description, including surveys during construction. Vessel and equipment shall be built to the satisfaction of ABS, including ABS Surveyors.

4.2. Acceptance Test. Vessel shall undergo an acceptance test prior to delivery, conducted by the builder and witnessed by the Government. Acceptance testing shall be conducted IAW contractor procedures, approved by the Government, to address all tests required by American Bureau of Shipping (ABS) and other requirements of this Purchase Description or of the contract.

5. Packaging. (Not Applicable)

6. Notes (Not Applicable)