Section J-01 HSC-L System Specification ORIG.pdf

Table of Contents

SECTION 000

SECTION 042 GENERAL ADMINISTRATIVE REQUIREMENTS ........................................................ 000-1

SECTION 070 GENERAL REQUIREMENTS FOR DESIGN AND CONSTRUCTION .......................... 000-5

SECTION 071 ACCESS .................................................................................................................................... 000-8

SECTION 073 NOISE, VIBRATION AND RESILIENT MOUNTS ........................................................... 000-9

SECTION 074 WELDING AND FABRICATION ....................................................................................... 000-11

SECTION 075 MECHANICAL FASTENERS ............................................................................................. 000-12

SECTION 076 RELIABILITY, MAINTAINABILITY AND AVAILABILITY (RM&A) ...................... 000-13

SECTION 077 SYSTEM SAFETY ................................................................................................................ 000-14

SECTION 078 MATERIALS ........................................................................................................................ 000-15

SECTION 079 STABILITY AND BUOYANCY .......................................................................................... 000-16

SECTION 088 HUMAN SYSTEMS INTEGRATION ................................................................................. 000-17

SECTION 096 MASS PROPERTIES ............................................................................................................ 000-18

SECTION 100

SECTION 100 GENERAL REQUIREMENTS FOR HULL STRUCTURE .............................................. 100-1

SECTION 114 HULL APPENDAGES ........................................................................................................... 100-2

SECTION 160 SEACHEST .............................................................................................................................. 100-2

SECTION 167 HULL STRUCTURAL CLOSURES .................................................................................... 100-2

SECTION 170 MASTS ...................................................................................................................................... 100-3

SECTION 180 FOUNDATIONS ..................................................................................................................... 100-3

SECTION 200

SECTION 200 GENERAL REQUIREMENTS FOR PROPULSION PLANT ........................................... 200-1

SECTION 202 MACHINERY CONTOLS AND MONITORING SYSTEM .............................................. 200-1

SECTION 233 DIESEL ENGINES ................................................................................................................. 200-3

SECTION 241 PROPULSION REDUCTION GEARS ................................................................................ 200-3

SECTION 242 MAIN PROPULSION COUPLINGS AND CLUTCHES .................................................... 200-4

SECTION 243 MAIN PROPULSION SHAFT .............................................................................................. 200-4

SECTION 244 MAIN PROPULSION SHAFT BEARINGS AND SEALS ................................................. 200-5

SECTION 256 MACHINERY COOLING SYSTEMS ................................................................................ 200-6

SECTION 257 JACKET WATER HEATING SYSTEM ............................................................................ 200-7

SECTION 259 EXHAUST SYSTEM ............................................................................................................... 200-7

SECTION 300

SECTION 300 ELECTRICAL PLANT, GENERAL ..................................................................................... 300-1

SECTION 302 ELECTRIC MOTORS AND ASSOCIATED EQUIPMENT .............................................. 300-2

SECTION 303 PROTECTIVE DEVICES FOR ELECTRICAL CIRCUITS.............................................. 300-2

SECTION 304 ELECTRIC CABLES .............................................................................................................. 300-2

SECTION 305 ELECTRICAL AND ELECTRONICS DESIGNATING AND MARKING SYSTEMS

................................................................................................................................................... 300-3

SECTION 310 SHIP SERVICE GENERATORS ........................................................................................... 300-4

SECTION 313 STORAGE BATTERIES ........................................................................................................ 300-5

SECTION 314 POWER CONVERSION EQUIPMENT ............................................................................... 300-5

SECTION 324 SWITCHBOARDS & POWER PANELS .............................................................................. 300-6

SECTION 330 LIGHTING SYSTEMS ........................................................................................................... 300-7

SECTION 400

SECTION 402 CYBERSECURITY REQUIREMENTS ............................................................................... 400-1

SECTION 404 RADIO FREQUENCY, TRANSMISSION LINES, AND CABLES .................................. 400-1

SECTION 405 ANTENNAS .............................................................................................................................. 400-2

SECTION 407 GROUNDING, BONDING, AND ELECTROMAGNETIC ENVIRONMENT ................ 400-2

SECTION 410 COMMAND AND CONTROL SYSTEMS ........................................................................... 400-2

SECTION 421 NON-ELECTRONIC NAVIGATION SYSTEM .................................................................. 400-4

SECTION 422 ELECTRICAL NAVIGATION AIDS .................................................................................. 400-5

SECTION 423 ELECTRONIC NAVIGATION SYSTEMS .......................................................................... 400-5

SECTION 425 AUTOPILOT ............................................................................................................................ 400-7

SECTION 436 ALARMS ................................................................................................................................. 400-7

SECTION 439 CCTV MONITORING CAMERA SYSTEM ....................................................................... 400-8

SECTION 441 EXTERIOR COMMUNICATIONS SYSTEM ..................................................................... 400-9

SECTION 443 LOUD HAILER/ INTERCCOM .......................................................................................... 400-10

SECTION 455 AUTOMATIC IDENTIFICATION SYSTEMS .................................................................. 400-10

SECTION 457 ELECTRO-OPTICAL AND INFRARED SURVEILLANCE SYSTEM ......................... 400-11

SECTION 500

SECTION 505 GENERAL REQUIREMENTS FOR PIPING SYSTEMS .................................................. 500-1

SECTION 506 OVERFLOW, VENTS, AND SOUNDING ........................................................................... 500-4

SECTION 507 MACHINERY AND PIPING DESIGNATION AND MARKING ..................................... 500-5

SECTION 512 HEATING, VENTILATION AND AIR CONDITIONING ................................................ 500-7

SECTION 514 HVAC CHILLED AND HOT WATER SYSTEMS ........................................................... 500-10

SECTION 516 REFRIGERATION SYSTEMS ............................................................................................ 500-11

SECTION 517 FIRED HEATERS AND OTHER HEAT SOURCES ........................................................ 500-12

SECTION 521 SEAWATER SERVICES ...................................................................................................... 500-13

SECTION 528 PLUMBING AND DECK DRAINS .................................................................................... 500-14

SECTION 529 BILGE AND BALLASTING SYSTEMS ............................................................................ 500-15

SECTION 530 AUXILIARY FRESHWATER COOLING ......................................................................... 500-16

SECTION 533 POTABLE WATER SYSTEMS ........................................................................................... 500-17

SECTION 541 FUEL SYSTEMS .................................................................................................................. 500-18

SECTION 555 FIRE EXTINGUISHING SYSTEM ..................................................................................... 500-18

SECTION 556 HYDRAULIC OIL SYSTEMS ............................................................................................ 500-19

SECTION 561 STEERING SYSTEMS ......................................................................................................... 500-22

SECTION 568 BOW THRUSTER [RESERVED] ........................................................................................ 500-23

SECTION 573 CROSS DECK WINCHES AND TIE DOWN FITTINGS ................................................ 500-23

SECTION 581 ANCHOR ................................................................................................................................ 500-23

SECTION 582 MOORING AND TOWING ................................................................................................ 500-24

SECTION 583 LIFE SAVING APPLIANCES ............................................................................................ 500-25

SECTION 589 CRANES ................................................................................................................................ 500-25

SECTION 600

SECTION 600 OUTFITTING ......................................................................................................................... 600-1

SECTION 602 HULL, MECHANICAL DESIGNATION, AND MARKING ............................................. 600-1

SECTION 604 LOCKS, KEYS, AND TAGS ................................................................................................. 600-1

SECTION 612 RAILS, STANCHIONS AND LIFELINES .......................................................................... 600-2

SECTION 613 CANVAS AND COVERS ........................................................................................................ 600-2

SECTION 621 NONSTRUCTURAL BULKHEAD ....................................................................................... 600-3

SECTION 622 FLOOR PLATES ..................................................................................................................... 600-4

SECTION 623 LADDERS & HANDRAILS ................................................................................................... 600-4

SECTION 625 FIXED PORTLIGHTS AND WINDOWS ............................................................................ 600-5

SECTION 631 PAINTING................................................................................................................................ 600-5

SECTION 633 CATHODIC PROTECTION .................................................................................................. 600-6

SECTION 634 DECK COVERING ................................................................................................................. 600-6

SECTION 635 THERMAL, ACOUSTIC AND FIRE PROTECTION INSULATION ............................. 600-7

SECTION 640 LIVING SPACES ..................................................................................................................... 600-8

SECTION 644 SANITARY SPACES AND FIXTURES .............................................................................. 600-10

SECTION 660 SEATS .................................................................................................................................... 600-11

SECTION 665 WORKSHOP .......................................................................................................................... 600-12

SECTION 670 STOWAGE ............................................................................................................................ 600-13

Homeland Security Cutter – Light (HSC-L) Request for Proposal (RFP)

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DISTRIBUTION STATEMENT A - Distribution Unlimited

SECTION 042 GENERAL ADMINISTRATIVE REQUIREMENTS

042.1 TERMS AND DEFINITIONS

042.1.1 The term "these specifications" refers to the document entitled, "Homeland Security Cutter – Light (HSC- L) Specification".

042.1.2 The term "section" refers to a part of these specifications designated by a single 3-digit number.

Reference to sections of these specifications is made by calling out the appropriate 3-digit Expanded Ship Work Breakdown Structure (ESWBS) number.

042.1.3 The term "herein" shall mean within this entire specification and the Statement of Work.

042.1.4 The term “as shown on the drawings” shall mean that there is additional information on the contract drawings, contract informational drawings and the project peculiar documents.

042.1.5 The “Contractor” is the firm holding a prime contract with the Government for design or construction of the HSC-L.

042.1.6 The phrase “be approved” or “for approval” used herein shall be interpreted to mean approval from the Government Contracting Officer or Contracting Officer’s Representative (COR) in accordance with the terms and conditions of this contract.

042.1.7 The term "days" shall mean calendar days unless otherwise specified herein.

042.1.8 "Exterior location", "Weather location" and other similar terms shall mean exposed to the elements and left unprotected by the vessel’s interior environment.

042.1.9 FCC is the Federal Communications Communication.

042.1.10 GFP means Government Furnished Property- It includes both Government Furnished Equipment and Government Furnished Information - Items and information in the possession of, or acquired by the Government and delivered to, or otherwise made available to, the Contractor. These items are included in Schedule A and Schedule C of the contract.

042.1.11 "Interior location" and other similar terms shall mean protected by the vessel's interior environment.

042.1.12 Standards Bodies are entities that establish standards for the industry such as IEEE, ASTM, ABYC, NFPA, ISA, etc.

042.1.13 USCG is the United States Coast Guard.

042.1.14 The term "approved waiver request" shall mean: Any non-conformance, found to depart from specified requirements during or after manufacture, which is considered usable as is or after rework by an approved method.

042.2 GENERAL

042.2.1 These specifications describe the requirements for a Homeland Security Cutter- Light including the general features, functions, performance, and arrangements, but not necessarily the details of the design.

Together with the contract drawings and contract informational drawings, hereafter referred to as “the drawings,” and other referenced documents, they define the vessel as to principal dimensions, arrangement, and power.

042.2.2 Material and equipment under these specifications shall be new and unused. Equipment shall be current production models with existing equipment and repair parts support. Materials or equipment referred to by trade or brand name or manufacturer's model or by Federal/National Stock Number represent, to the best knowledge of the Government, current production models on 5 January 2026.

042.2.3 Where a commercial manufacturer's type, model, or other designation is referenced herein, together with the term "or equal", such identification is intended to be descriptive, but not restrictive, and is used to indicate the applicable characteristics as they existed on 5 January 2026.

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042.2.3.1 If the term "or equal" does not appear after the requirement of a commercial manufacturer's type, model, or other designation, it shall be read as only the specific commercial manufacturer's type, model, or other designated material or equipment will suffice.

042.2.4 Approval shall be obtained from the Contracting Officer prior to the use of other than referenced document(s) in lieu of the requirements of the primary reference cited. This includes superseding documents if applicable. Later versions of product specifications may be used upon notifying the Contracting Officer and are approved unless specifically rejected within 45 days. Proposals for substitutions for primary and the above sub-tier references shall be made by letter from the Contractor to the Contracting Officer. To ensure that sufficient information is available to permit evaluation of alternatives, the Contractor shall furnish descriptive information necessary to substantiate that the alternative offered is cost effective and meets the performance, life, safety, interchangeability, maintainability, and reliability of that prescribed by the referenced document(s).

042.2.4.1 Equivalent equipment - Where equipment is specified herein by a reference document, the Contractor may propose equivalents to these references.

042.2.4.1.1 In order for the proposed item to be acceptable, an equipment equivalency certificate shall be prepared and approved.

042.2.4.1.2 The equivalency certificate shall include, and approval will be based on, the following equipment attributes:

042.2.4.1.2.1 Meet or exceed the performance requirements specified herein, and possess similar:

042.2.4.1.2.1.1 Dimensions.

042.2.4.1.2.1.2 Weight.

042.2.4.1.2.1.3 Power, HVAC, cooling water, and other support services.

042.2.4.1.2.1.4 Suitability for marine service.

042.2.4.1.2.1.5 Material.

042.2.4.1.2.1.6 Reliability and Maintenance features.

042.2.4.1.2.1.7 Vendor furnished training.

042.2.4.1.2.1.8 Vendor furnished service.

042.2.4.1.2.1.9 Data requirements.

042.2.4.1.2.1.10 Maintenance and support costs, expected life, and crew workload.

042.2.4.1.2.1.11 Environmental and Safety characteristics including airborne noise and vibration.

042.2.4.2 To the extent that the above similarities are not met, the Contractor shall explain why they are not essential to the proper functioning and support of the equipment.

042.2.4.3 The equivalency certificate shall identify support, auxiliary, or subsystem equipment or material that would be changed or modified as a result of acceptance of the equivalent equipment.

042.2.4.4 The equivalency certificate shall identify discrepancies with the requirements of these specifications that would result from the acceptance of the equivalent equipment.

042.2.4.5 Unless otherwise specified, measurements, calculations, and mathematical data shall be presented in U.S. Customary units of measure. In addition, written data produced in support of this effort or required as a deliverable, shall be in the English language.

042.2.4.6 If the Contractor proposes to modify a product to make it conform to the specified requirements, they shall include in their proposal a clear description of such proposed modifications and clearly mark any descriptive material accordingly. The Contracting Officer will be the final judge of the suitability of the item submitted.

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042.3 REFERENCED DOCUMENTS

042.3.1 Definitions

042.3.1.1 "Contract drawings" are drawings which delineate design features of the vessel. No departure from a contract drawing shall be made without approval of the Government.

042.3.1.2 "Informational drawings" are drawings identified as "Informational Drawing" which illustrate design features of the vessel. An Informational drawing does not necessarily depict, nor is it intended that it depicts, features and details of the systems and structures to which it relates. It serves the purpose of providing information which, when utilized in conjunction with applicable specification requirements, contract drawings, project-peculiar drawings, and other information, will result in an acceptable design. Departure from specific details may be made without approval, provided an acceptable design results. Informational Drawings will not necessarily be updated or revised to reflect future modifications or changes to these specifications.

042.3.1.3 "Expanded Ship Work Breakdown Structure" (ESWBS) is a method of ship weight and system classification defined by NAVSEA 0900-LP-039-9010. Reference to ESWBS or SWBS in these specifications shall mean the Expanded Ship Work Breakdown Structure.

042.3.1.4 "Industry standards" are documents promulgated by recognized non-Government organizations (such as ANSI or ASTM) that establish engineering and technical limitations and applications for items, materials, processes, methods, design, and engineering practices.

042.3.1.5 "Primary references" and "sub tier references": Any referenced document which is directly cited for use or application by an identifying number or name in these specifications or in any contract drawing, is a primary reference for each particular use or application for which it is so cited. Any document which is cited in a primary reference, or in a document referenced therein, is a subtier reference. A document which is a subtier reference in one application may be a primary reference in another application when it is cited directly

042.3.1.6 Where any primary or sub-tier reference uses language such as: “recommends, should, or similar,” this shall be interpreted as a “shall” requirement in the reference document itself.

042.3.2 In the event that the Contractor discovers any error or inapplicability in the identification of reference documents, the Contractor shall notify the Contracting Officer within 5 days of that discovery.

042.4 EFFECTIVE ISSUE

042.4.1 The effective issue of a reference document refers to that issue of a reference document which forms a part of these specifications. Whenever first tier references are identified within these specifications by revision or amendment, that issue shall be the effective issue for the particular use or application cited.

These specifications do not prescribe effective issue requirements for sub-tier references. Sub-tier references shall be those in effect on the date of the first tier referenced document version used. The effective issue of references not specifically identified by issue or amendment shall be that in effect on 5 January 2026 unless otherwise specified. The effective issue of contract drawings, informational drawings and project peculiar documents is the revision listed in Table I. Where no revision is indicated, the original issue is intended.

042.5 ORDER OF PRECEDENCE

042.5.1 Order of Precedence of requirements within the Expanded Ship Work Breakdown Structure Sections of the Homeland Security Cutter- Light (HSC-L) Specification is as follows:

042.5.1.1 Requirements within a SWBS Section applicable to the entire HSC-L (for example, SWBS Section 070 - General Requirements for Design and Construction) state the broadest requirements and apply to systems and equipment, unless otherwise specified in the more detailed SWBS Sections, in which case the detailed SWBS Section requirements apply.

042.5.1.2 Specific requirements within a lead, 1-digit SWBS Section (for example, a SWBS Section which includes the general or common requirements for a number of similar systems, such as SWBS Section 500 - Auxiliary Systems, General) are the next broadest category of requirements, and shall

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apply to systems and equipment in its grouping as well as other ship systems where applicable, unless otherwise specified in detail system SWBS Sections.

042.5.1.3 Specific requirements within a 2-digit SWBS Section (for example, a SWBS Section which includes the details of a particular system such as SWBS 530, Fresh Water Systems) are the next broadest category of requirements and shall apply to systems and equipment in its grouping, unless otherwise specified in detail system SWBS Sections.

042.5.1.4 Specific requirements within a detailed, 3-digit SWBS Section (for example, a SWBS Section which includes the details of a particular system such as SWBS 533, Potable Water Systems) are the most detailed requirements. Requirements in these detailed system SWBS Sections apply for the system covered in the detailed SWBS Section.

042.5.1.5 The omission in one SWBS Section of details covered in another SWBS Section shall not be considered a conflict.

042.5.1.6 In the event that two or more requirements of equal precedence are found to apparently conflict, the Contractor shall formally identify the conflict to the Government for clarification, or correction of the specifications, as appropriate.

042.5.2 Order of Precedence of Documents

042.5.2.1 In case of conflict between the Specification and referenced documents, the following order of precedence applies:

042.5.2.1.1 Contract Drawings.

042.5.2.1.2 HSC-L System Specification

042.5.2.1.3 Primary references

042.5.2.1.4 Sub-tier references.

042.5.2.1.5 Informational Drawings.

042.5.2.2 The order of precedence only applies in the event there is a conflict between requirements.

042.5.2.3 In the event that requirements are found to apparently conflict, the Contractor shall formally identify the conflict to the Government for clarification, or correction of the specifications, as appropriate.

042.5.3 The following drawings form a part of these specifications to the extent specified herein.

042.5.3.1 Contract Drawings

Drawing Number Title Revision

085 HULL LINES & OFFSETS

101 SECTIONS AND BULKHEADS

110 SHELL PLATE ARRANGEMENT

114 SKEG DRAWING

130 DECKS & PLATFORMS

150 DECKHOUSE STRUCTURE

167 STRUCTURAL & NONSTRUCTURAL CLOSURES

256 MACHINERY COOLING SYSTEM

259 DIESEL EXHAUST DIAGRAM

301 ENGINE START SYSTEM DIAGRAM

420 NAVIGATION SYSTEM BLOCK DIAGRAM

506 VENTS, SOUNDS, FILLS & OVERFLOWS

512 HVAC DIAGRAM

514 CHILLED & HOT WATER DIAGRAM

521 SEAWATER SYSTEM DIAGRAM

528 PLUMBING DRAINS & SEWAGE VACUUM/TRANSFER DIAGRAM

529 BILGE SYSTEM DIAGRAM

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042.5.3.2 Informational Drawings

Drawing Number Title Revision

079 STABILITY ANALYSIS

083 MASTER EQUIPMENT LIST (MEL)

096 WEIGHT ESTIMATE

180 STRUCTURAL FOUNDATIONS

201 MACHINERY ARRANGEMENT

300 ELECTRICAL LOAD ANALYSIS (EPLA)

301 ELECTRICAL ONE-LINE DIAGRAM

401 TOPSIDE ARRANGEMENT & DETAILS

512 HVAC HCLC

640 SPACE ARRANGEMENT

N/A PLACEMAT

SECTION 070 GENERAL REQUIREMENTS FOR DESIGN AND CONSTRUCTION

070.1 GENERAL

070.1.1 This section contains general technical requirements for the design and construction of a Homeland Security Cutter - Light. The information contained in this section sets forth general requirements for design, workmanship, and installation unless otherwise specified herein. The cutter shall incorporate proven technology.

070.1.2 Equipment, machinery, and materials shall be suitable for extended exposed stowage and reliable operation in the marine environment.

070.1.3 The Contractor shall comply with Original Equipment Manufacturers (OEM) installation instructions and recommendation of components unless there is a conflict with the contract requirements, in which case the USCG will adjudicate the conflict.

070.2 PRINCIPAL DESIGN FEATURES

070.2.1 Physical Constraints

070.2.1.1 Draft – Not to exceed 7 feet at Full Load ATON end of service life condition. Draft is measured from the bottom- most extremity including propeller(s), appendages, and hull in the full load condition.

070.2.1.2 Air Draft – Fixed height not to exceed 20 feet above the Minimum Operating Condition waterline.

070.2.2 Propulsion Plant Architecture

070.2.2.1 The vessel shall have 2 main propulsors.

070.2.2.2 The vessel and its systems shall operate on the following fuels:

070.2.2.2.1 NATO F-76 fuel in accordance with MIL-DTL-16884;

532 AUXILIARY FRESHWATER COOLING DIAGRAM

533 POTABLE WATER SYSTEM DIAGRAM

541 FUEL SYSTEM

555 FIXED FIREFIGHTING DIAGRAM

561 STEERING SYSTEM

562 RUDDER DRAWING

573 WORKING DECK ARRANGEMENT

582 MOORING, TOWING & ANCHORING ARRANGEMENT

601 GENERAL ARRANGEMENTS

625 WINDOW SCHEDULE

635 INSULATION SCHEDULE

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070.2.2.2.2 Marine Gas Oil conforming to ISO 8217 Grade DMA with a maximum sulfur content of 0.5 mass % and a maximum Fatty Acid Methyl Esters content of 0.5 vol. %; and

070.2.2.2.3 ASTM D975 Grade Number 2 Ultra Low Sulfur Diesel with a maximum sulfur content of 15 ppm.

070.2.3 Speed, Range and Endurance

070.2.3.1 Speed: The vessel will be capable of maintaining speed of at least 10 knots in seas with significant wave height of less than one foot, while outfitted for Full Load ATON.

070.2.3.2 Range: The vessel will be able to travel 720 nautical miles (nm) in seas with significant wave height of less than one foot, at 10 knots with a ten percent (10%) fuel reserve.

070.2.3.3 Endurance: The boat will be capable of conducting unreplenished icebreaking for at least three days to include: fuel, potable water, waste water, food, and solid waste.

070.2.4 Seakeeping, Dynamic Stability and Maneuverability

070.2.4.1 At speeds and loading conditions in significant wave height of one foot, the vessel shall be able to maintain a straight course ahead.

070.2.4.2 The vessel, while using no more than 1/3 of the engine’s available power, shall be capable of maneuvering astern in a straight course and perform backing turns.

070.2.4.3 The vessel will be capable of surviving in seas with a significant wave height of six feet, while outfitted for Full Load ATON.

070.2.4.4 The vessel will be capable of transiting in seas with a significant wave height of three feet, while outfitted for Full Load ATON.

070.2.4.5 The vessel will be capable of anchoring in 40 knot winds, in a depth of water that is at least five times its draft.

070.2.4.6 The vessel will enable the operator to maintain station, utilizing propulsion and steering, for the purpose of servicing floating ATON, in seas with a significant wave height of three feet.

070.2.4.7 The vessel will be capable of completing a 180 degree turn in waterways as narrow as 140 feet without using ground tackle.

070.2.5 Service Life and Annual Hours of Operation

070.2.5.1 The vessel shall be designed to operate at a planned 700 hours per year.

070.2.5.2 The vessel shall be designed for a minimum service life of 30 years.

070.2.6 Accommodations

070.2.6.1 Accommodation shall be provided as shown in the contract drawings.

070.2.7 Mission Profiles

070.2.7.1 Individual sorties may have considerably different percentages depending on the mission conducted, per Table 070-1.

Table 070-1: Mission Profile

Percentage of Mission Speed Condition 33% Transit 17% Icebreaking Full Power 17% Icebreaking Half Power 33% Anchored

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070.2.8 Towing

070.2.8.1 The vessel shall be capable of towing a vessel of at least equivalent displacement astern, while outfitted for Full Load ATON.

070.2.8.2 The vessel shall be capable of being towed by another vessel while outfitted for Full Load ATON.

070.2.9 Ice Breaking

070.2.9.1 In level ice with a flexural strength of 110 lb/in2, the HSC-L will be capable of:

070.2.9.1.1 Breaking ice of 12 inches thickness at a continuous speed of 3 knots ahead.

070.2.9.1.2 Turning 180 degrees in level ice of eight inches thickness by conducting a star maneuver.

070.3 LOADING CONDITIONS

070.3.1 DEFINTIONS: Loading condition definitions shall be in accordance with the Society of Allied Weight Engineers Recommended Practice No. 12C, modified as follows:

070.3.1.1 “Full Load ATON Condition” (or “Maximum Operating Condition”): The vessel is complete and ready for service in every respect equivalent to a departure condition for ATON work. Including:

light ship condition, plus full fuel, fresh water, lube oil, crew and effects, stores and maximum ATON cargo load (16,340 lbs), including two 5x11 buoys, sinkers and associated equipment.

(SAWE Condition A).

070.3.1.2 “Full Load Icebreaking Condition”: The vessel is complete and ready for service in every respect, equivalent to a departure condition for icebreaking work. It is light ship condition, plus full fuel, fresh water, lube oil, crew and effects, stores, with Zero ATON load or ballast.

070.3.1.3 “Minimum Operating Condition” (Min Op): The vessel is complete and ready for service in every respect with the assumed loading that may occur at the end of normal operations and arrival back to port. It is light ship condition, plus 10% fuel, 10% fresh water with the 90% weight of water moved to the black/grey water tank location, lube oil, crew and effects, and no ATON load or associated equipment. (SAWE Condition F)

070.3.1.4 “Full Load End of Service Life (EOSL) Condition”: shall include the full load condition (SAWE Condition A) plus service life weight and KG allowances.

070.3.1.5 “Minimum Operating EOSL Condition”: shall include the Min Op condition (SAWE Condition F) plus service life weight and KG allowances.

070.3.2 Loading Condition Limits:

070.3.2.1 Absolute trim limits shall be no more than 0.5 ft down by the bow and 1.0 ft down by the stern in any operating condition.

070.3.2.2 Absolute list limits shall be no more than 1/2-degree port and 1/2-degree starboard for any loading condition. ATON loads shall be assumed to have net zero transverse center of gravity and shall not be shifted to correct lightship list angle.

070.4 OPERATING ENVIRONMENT

070.4.1 The vessel shall be capable of operating in fog, heavy snow, heavy rain, and topside icing conditions.

070.4.2 The vessel’s equipment and systems shall be designed to operate without degradation for the following temperatures:

070.4.2.1 Minimum Ambient Air Temperature of –20°F dry bulb

070.4.2.2 Maximum Ambient Air Temperature of 95°F, dry bulb

070.4.2.3 Ambient seawater temperature between 28°F and 85°F, wet bulb

070.4.2.4 Ambient freshwater temperature between 32°F and 85°F, wet bulb

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070.4.2.5 Equipment and machinery shall operate with dynamic roll of as much as 22.5° and dynamic pitch of as much as 10° (both single amplitude)

070.4.2.6 Equipment and machinery in exposed locations shall not be installed in areas where it would operate outside its specified limits

070.4.3 The following values shall be used for design of the vessel, per Table 070-2:

Table 070-2: Design Accelerations

Location Height (m, ABL)

Design Lateral Acceleration (g)

Design Vertical Acceleration (g)

Design Longitudinal

Acceleration (g)

Hull and Buoy Deck 1.3-1.8 m 0.4 1.9 (down), 0.1

(up) 0.2

Pilot House 2.7m 0.2 2.0 (down), 1.0

(up) 0.15

Mast/ Pilot House Top 9.4m 1.5 1.4 (down), 0.6

(up) 0.35

070.5 WORKMANSHIP

070.5.1 All cuts shall be neatly and accurately made with edges cleaned for welding.

070.5.2 All sharp edges exposed to personnel or equipment shall be dressed or ground to avoid injury to operating or maintenance personnel or damage to equipment.

070.5.2.1 Internal corners shall be filleted and external corners shall be rounded off.

070.5.2.2 Ragged edges or sharp projections which are hazardous to operating personnel, or detract from the finished appearance shall be removed.

070.5.3 All finished welds are to be uniform and free from defects such as slag inclusions, porosity, incomplete penetration or undercutting.

070.6 LIFTING POINTS AND EQUIPMENT REMOVAL

070.6.1 Padeyes of rated capacity shall be installed to permit removal of machinery components from the vessel.

070.6.2 Lifting points shall be fitted so that parts may be lifted and moved with the minimum disconnection of piping, cables, ventilation ducts, and other installed equipment.

070.7 SPECIAL TOOLS

070.7.1 Special tools necessary for maintenance shall be provided.

SECTION 071 ACCESS

071.1 GENERAL

071.1.1 The design and arrangement of the vessel shall, under operational conditions, provide for safe and convenient access to all spaces, and for safe and convenient service, maintenance, and operation of controls, systems, machinery, and components. Access shall be provided to pockets, through swash bulkheads and non-tight structures within tanks and elsewhere to permit inspection, care and preservation of the structure.

071.1.2 Primary and secondary egress routes from spaces with fixed fire suppression systems shall be equipped with access that opens outward.

SPECS 000-099 000-9

071.1.3 Unless otherwise specified clear headroom shall not be less than 6 feet 6 inches. Machinery, piping, lighting fixtures, wireways, ducts, operating rods, brackets, tracks and other items shall be kept clear of normal routes of access. For exceptions, which shall be subject to approval, suitable guards or padding shall be installed.

071.1.4 Ingress and egress of internal spaces shall be free of trip or snag hazards that may impede the safe evacuation of the space.

071.1.5 The vessel shall have access to support routine maintenance and inspections.

071.1.5.1 Access shall be arranged to be clear of piping, wire ways, ducts, and other obstructions.

071.1.5.2 Equipment accessed for routine maintenance completed daily or underway, such as dipsticks and strainers, shall be located so they are readily accessible.

071.1.5.3 Equipment shall be arranged so that each component shall be accessible and removable independent of another component.

071.1.5.4 Access shall allow compartment inspection while underway without the use of tools.

071.1.6 Access shall be provided to allow any diesel engine to be moved to a location for removal by vertical lift without:

071.1.6.1 Disassembly of the engine, except engine-driven accessories;

071.1.6.2 Removal or disassembly of other major equipment; and

071.1.6.3 Cutting of shell structure.

071.1.7 Access shall be provided to bilge areas. Bilge access points shall provide access to the lowest point of the bilge to ensure it can be reached for maintenance, checked for water content, completely dewatered, and wiped clean of any residue.

071.1.8 Access to fuel tanks, fuel hoses, and fittings shall be provided for repair and maintenance without removing any permanent structural component.

071.1.9 Access shall be provided to tanks, cofferdam, and voids (not including Skeg), through watertight closures and fasteners that can be opened and re-secured with non-powered hand tools. Such openings shall be sized and placed to allow visual inspection of the interior of the space.

071.1.10 The diesel engines shall be arranged such that the maintenance access needed to perform required annual (or more frequent) routine service is present without removing the engines or removing or disassembling any other equipment, machinery, or structure.

071.2 CONSOLE DESIGN

071.2.1 Console design shall provide for replacement of components to mitigate impacts of expected obsolescence, particularly of electronics. This may include incorporation of features such as hinged or bolted console faceplates, equipment racks, or bolt-on sub-assemblies

071.2.2 Equipment within the console shall be arranged so any equipment can be removed without removing any other equipment.

SECTION 073 NOISE, VIBRATION AND RESILIENT MOUNTS

073.1 DEFINITIONS

073.1.1 “A-Weighted Sound Level (dB(A))”: The frequency weighted sound pressure level obtained with the sound level meter set to A-weighting.

073.1.2 “Hazardous Noise”: Hazardous noise is any sound that exceeds 84 dB(A).

073.1.3 “Speech Interference Level (SIL)”: Speech Interference Level is the arithmetic average of the sound levels measured in the 500, 1000, and 2000 Hz octave band center frequencies.

SPECS 000-099 000-10

073.1.4 “Transit”: The propulsion plant maintaining sustained speed, normal ship service equipment and lighting, HVAC fans at maximum setting, buoy handling machinery secured, steering equipment in operation.

073.1.5 “ATON”: The propulsion plant idling, normal ship service equipment and lighting operational, HVAC fans at maximum setting, buoy handling machinery in operation, steering and bow thruster equipment in operation.

073.2 AIRBORNE NOISE

073.2.1 Steady state airborne noise acceptance levels for each category of spaces are as shown in Table 073-1.

Airborne noise category assignments for spaces are specified in Table 073-2. Spaces not listed in Table 073-2 shall have the same airborne noise category as a listed space that supports similar functions.

073.2.2 Acceptance levels shall not be exceeded at any measurement location with machinery and equipment operating simultaneously.

073.2.3 Transit and ATON operating conditions shall be assessed separately.

073.2.4 Compartments and deck areas with hazardous noise levels (i.e., any area 84 dB(A) or above) shall have a warning sign at each entrance indicating the presence of a noise hazard with indication of the appropriate hearing protection required in accordance with ASTM F1166.

073.2.5 Areas that exceed 96 dB(A) shall be labeled “DANGER, NOISE HAZARD AREA – DOUBLE HEARING PROTECTION MUST BE WORN” at each entrance. Labeling shall comply with ASTM F1166.

073.2.6 Airborne sound insulation properties for acoustic insulation within the accommodation area shall be in accordance with ABS Guide for Crew Habitability on Workboats, Section 5.2.

Table 073-1: Maximum Steady State Airborne Noise Acceptance Levels for Boat Spaces (dB)

Airborne Noise Category Octave Band Center Frequencies (Hz) (Note 1)

32 63 125 250 500 1000 2000 4000 8000

A-12 77 71 65 62 (SIL LEVEL 54) 53 52

B 87 81 75 72 69 66 65 63 62 D 99 94 89 84 79 79 79 79 79

F 110 105 100 95 (SIL LEVEL 65) 80 80

G (Notes 2-4) 115dB(A)

NOTES:

(1) A 2 dB excess is allowed in any one octave band except where SIL levels apply. A-weighted noise level measurements are measured for information only.

(2) Noise limit applies underway.

(3) Double hearing protection required in spaces that exceed 96 dB(A).

(4) Maximum allowable dockside noise level in Category G spaces, with diesel engines, propulsion system, and thrusters secured is 84 dB(A).

Table 073-2 Typical Airborne Noise Categories for Boat Spaces and Topside Location

Category Compartment

A-12 Pilothouse

B

Crew Berthing Water closet Water closet and shower

SPECS 000-099 000-11

D

Galley Space (Note 1) Passageways Workshop (Note 1)

F Buoy Deck, Working Deck (Note 2)

G Main Machinery Room, Auxiliary Machinery Room.

NOTES:

(1) Measured when installed equipment is in operation.

(2) Measured under conditions that are representative of the mission performed at that location.

073.3 MECHANICAL VIBRATION

073.3.1 The propulsion system vibration acceptability levels for torsional and lateral vibration of conventional shaft line systems shall be in accordance with the following:

073.3.1.1 The lateral natural frequencies of the propeller-shafting system shall be at least 115% of the design shaft rotational frequency.

073.3.1.2 The requirements of ANSI S2.27 Annex A for hard turns to port and starboard at sustained speed shall apply

073.3.1.3 Torsional stress limits for diesel engine crankshafts shall be determined in accordance with ABS Marine Vessel Rules.

073.4 HULL STRUCTURAL AND MAST VIBRATION

073.4.1 The vessel and all vessel components, including outfit items, shall be free of vibration that could damage the vessel structure, machinery, or systems; endanger vessel personnel; or interfere with operation or maintenance of vessel machinery and systems. No structural component or equipment shall exhibit a natural frequency between 70 and 140 percent of driving vibrations of the propulsion system and genset including, but not limited to, engine firing rate or propeller blade rate.

073.4.2 Vibrations outside the limits allowed in this section resulting from the excitation of a resonant frequency local to any equipment and machinery by the propeller or other exciting force shall be corrected by local stiffening of structure, installation of suitable mountings, modification of components, or other effective means.

073.4.3 Mast Vibration

073.4.3.1 Masts shall be free of global or local resonances that would be excited during normal operations.

073.4.3.2 As a minimum, the following resonance avoidance bands shall be used as mast vibration design criteria:

073.4.3.2.1 A frequency band defined by the propeller blade rate up to 115% maximum shaft rpm

073.4.3.2.2 For rigidly mounted variable speed engines, a frequency band defined by the largest diesel engine first and second order excitation frequency from 85% engine idle speed to 115% rated engine speed.

073.4.3.3 Mast vibration shall not exceed a broadband RMS velocity of 0.6 in/sec.

SECTION 074 WELDING AND FABRICATION

074.1 GENERAL

074.1.1 Workmanship and quality of construction shall meet the limits as outlined in IACS Recommendation No. 47 Shipbuilding and Repair Quality Standard.

074.1.2 Welds in structures attached to side shell, such as transverse bulkheads, decks, frames, web frames and side shell stringers, shall be of double continuous welds.

SPECS 000-099 000-12

074.1.3 Welding, brazing, and soldering shall be performed by certified personnel using approved procedures.

074.1.4 Gas Metal Arc Welding (GMAW) that applies short circuiting arc transfer technique shall not be used unless the process and application are specifically approved by the USCG.

074.1.5 Low hydrogen electrodes shall be used for shielded metal arc welding (SMAW).

074.2 WATER AND OIL STOPS

074.2.1 Water and oil stops shall be welded type and shall be used for all tight structures to prevent fluids and gases from travelling along faying surfaces of plate and stiffeners.

074.2.2 Snipes/holes shall be provided on both sides of tight boundaries approximately 6 inches from intersections but shall not be located directly under a structural supporting member.

074.2.3 Snipe/holes of limited height and length with restricted welding access shall have single V-groove welds.

074.2.4 The height of snipe/holes shall be no less than 3/16 inch.

074.3 NON-DESTRUCTIVE EVALUATION

074.3.1 Non-destructive evaluation shall be performed by certified inspectors using approved procedures

074.3.1.1 Visual testing (VT) shall be performed on 100% of welds including the root side wherever possible.

074.3.1.2 Dye penetrant testing (PT) or magnetic particle testing (MT) shall be performed on 100% of shell and deck plating butt welds, and 50% of all shell and deck plating longitudinal seam welds.

074.3.1.3 Radiologic testing (RT) or ultrasonic testing (UT) shall be performed on 100% of butt welds in sheer strakes, bilge strakes, keel strake, and deck stringer strakes within +/- 20 feet of amidships.

074.3.1.4 Radiologic testing (RT) or ultrasonic testing (UT) shall be performed on 100% of vertical keel web and flange and 10% of bottom and deck girder webs and flanges within +/- 20 feet of amidships.

074.3.1.5 Radiographic testing (RT) or ultrasonic testing (UT) shall be performed on pipe butt weld joints as shown in Table 074-1. ABS MVR 4-6-1/5 Table 1 shall be used to determine pipe class.

074.3.1.6 Dye penetrant testing (PT) or magnetic particle testing (MT) shall be performed on 100% of fillets welds on class I pipe.

Table 074-1 Extent of Pipe Examination

Pipe Class

Nominal size, D wall thickness, t

Extent

I D > 2.5 in (65 mm) t > 3/8 in (9.5 mm)

100%

II D > 3.5 in (90 mm) 10%

III All None

SECTION 075 MECHANICAL FASTENERS

075.1 GENERAL

075.1.1 Mechanical fasteners shall be made of 316 series stainless.

075.1.2 Exhaust fasteners shall be ASTM A193 Gr B16 (bolts) and ASTM A194 Gr B7 (nuts).

075.1.3 Where fitted bolts for machinery foundations, couplings, etc. must be stronger than 316 series stainless steel, 4140 meeting the material, processing, and mechanical requirements of ASTM A193 Gr B7 may be used.

075.1.4 In the absence of manufacturer or vendor requirements, SAE J2270 and SAE J2280 ASME B31.1, and ASME Boiler and Pressure vessel code as applicable, shall be used for selection, inspection, test, and installation for fasteners.

SPECS 000-099 000-13

075.1.5 SAE J429 Grade 8, AISI grade 4340, ASTM A574 alloy steel fasteners, and other high strength fasteners over 34 HRC (Rockwell Hardness C) shall not be zinc coated since this coating can cause hydrogen embrittlement.

075.1.6 Cadmium plated fasteners of any type shall not be used.

075.1.7 K-Monel (Alloy UNS N05500) shall not be used in seawater in applications where it will be in contact with alloy 625 (Alloy UNS N06625) because this couple is susceptible to galvanic corrosion.

075.1.8 Where nuts will become inaccessible after assembly, nuts shall be installed and secured in a manner that allows re-assembly and prevents loosening of fasteners due to shock and vibration.

075.1.9 Contractor supplied nuts shall be self-locking and of the plastic insert type or all-metal-locking nuts of the distorted type to prevent loosening of fasteners due to shock and vibration, except for blind applications.

Plastic insert type nuts shall not be used in high temperature applications. Alternate locking methods such as a double nut or mechanical locking device may be substituted. Locking methods shall prevent unacceptable losses in preload for the designed life of the application. Any maintenance required to maintain appropriate fastener preloads must be specified.

075.1.9.1 Through bolts used in propulsion machinery foundations and shaft couplings shall utilize a double nut installed with the thin (jam) nut on the inside of a full-size nut. Alternately these fasteners shall be positively retained using locking tabs or by drilling and pinning. Joints shall not be slip-critical;

fasteners loaded in shear or for alignment of equipment or shaft flange centering shall be fitted.

075.1.10 Contractor installed mechanical fasteners with nuts shall extend past the nut by one thread at a minimum but no more than one diameter of the fastener. Antisieze or a suitable thread lubricant as specified by the equipment OEM shall be used on all fasteners except those that are required to use a thread locking compound.

075.1.11 Mechanical fasteners in working deck traffic areas shall be flush or countersunk to eliminate tripping hazards.

075.1.12 Welding or similar thermal processes shall not be performed within 12 inches of fasteners which are heat treated.

075.1.13 Rivets shall be limited to when part of OEM supplied equipment.

SECTION 076 RELIABILITY, MAINTAINABILITY AND AVAILABILITY (RM&A)

076.1 GENERAL

076.1.1 The Contractor shall select and install commercial systems and equipment having reliable service life histories and meeting industry standards recognized by the Regulatory Bodies for the vessel.

076.1.2 In the absence of definitive Regulatory Body requirements, systems and equipment that have…