C-1 RB-S III Specification_A00004.pdf

Department of Homeland Security (DHS)

United States Coast Guard (USCG)

Response Boat - Small Third Generation

(RB-S III)

Section C – Attachment 1

SPECIFICATION

22 OCT 2026

Amendment Four (A00004)

Section C Attachment 1 Specification A00004

Attachment 1 i SPECIFICATION

Table of Contents [Orig] GENERAL ADMINISTRATIVE REQUIREMENTS ----------------------------------------------------------------- 1 [Orig] RB-S III OPERATIONS ---------------------------------------------------------------------------------------------------------- 4 [Orig] RB-S III PERFORMANCE REQUIREMENTS ------------------------------------------------------------------------- 4 [Orig] GENERAL REQUIREMENTS FOR DESIGN AND CONSTRUCTION -------------------------------------- 5 [Orig] ACCESS -------------------------------------------------------------------------------------------------------------------------------- 7 [Orig] NOISE AND VIBRATION ------------------------------------------------------------------------------------------------------ 8 [Orig] ADDITIONAL WELDING REQUIREMENTS-------------------------------------------------------------------------- 8 [Orig] MECHANICAL FASTENERS ------------------------------------------------------------------------------------------------- 9 [Orig] SAFETY ------------------------------------------------------------------------------------------------------------------------------- 10 [Orig] MATERIALS ------------------------------------------------------------------------------------------------------------------------ 10 [Orig] STABILITY AND BUOYANCY --------------------------------------------------------------------------------------------- 12 [Orig] HUMAN SYSTEMS INTEGRATION (HSI) ----------------------------------------------------------------------------- 12

100 [Orig] STRUCTURE ----------------------------------------------------------------------------------------------------------------------- 13 103 [Orig] TIGHTNESS ------------------------------------------------------------------------------------------------------------------------ 14 114 [Orig] FENDERING SYSTEM --------------------------------------------------------------------------------------------------------- 14 131 [Orig] DECKS -------------------------------------------------------------------------------------------------------------------------------- 15 150 [Orig] CABIN --------------------------------------------------------------------------------------------------------------------------------- 15 167 [Orig] DOORS AND HATCHES ------------------------------------------------------------------------------------------------------- 15 170 [Orig] MASTS AND ARCHES --------------------------------------------------------------------------------------------------------- 16 191 [Orig] FLOTATION MATERIAL INSTALLATION -------------------------------------------------------------------------- 16 200 [Orig] PROPULSION PLANT ---------------------------------------------------------------------------------------------------------- 17 233 [Orig] PROPULSION GASOLINE ENGINES ------------------------------------------------------------------------------------ 17 252 [Orig] PROPULSION CONTROL AND MONITORING SYSTEMS ---------------------------------------------------- 17 261 [Orig] FUEL SYSTEM -------------------------------------------------------------------------------------------------------------------- 18 300 [Orig] ELECTRICAL POWER GENERATION AND DISTRIBUTION SYSTEM --------------------------------- 19 301 [Orig] WIRING AND ELECTRIC CABLE ---------------------------------------------------------------------------------------- 19 302 [Orig] ELECTRICAL DESIGNATION AND MARKING ------------------------------------------------------------------- 20 310 [Orig] DC ELECTRIC GENERATING SOURCES ---------------------------------------------------------------------------- 20 313 [Orig] BATTERIES AND BATTERY CHARGING ---------------------------------------------------------------------------- 20 320 [Orig] ELECTRIC POWER DISTRIBUTION SYSTEM --------------------------------------------------------------------- 22 332 [Orig] LIGHTING AND ILLUMINATION ---------------------------------------------------------------------------------------- 23 400 [Orig] COMMAND, CONTROL, AND COMMUNICATION -------------------------------------------------------------- 24 401 [Orig] RADIO FREQUENCY TRANSMISSION LINES AND CABLES ----------------------------------------------- 24 402 [Orig] SECURITY REQUIREMENTS ---------------------------------------------------------------------------------------------- 25 403 [Orig] GROUNDING AND BONDING ---------------------------------------------------------------------------------------------- 27 405 [Orig] ANTENNA REQUIREMENTS ----------------------------------------------------------------------------------------------- 27 407 [Orig] EMI AND RADIO FREQUENCY INTERFERENCE (RFI) REDUCTION ---------------------------------- 27 410 [Orig] REQUIREMENTS FOR CONTROL STATIONS AND DATA DISPLAY SYSTEMS ------------------- 27 424 [Orig] ELECTRONIC NAVIGATION SYSTEM -------------------------------------------------------------------------------- 31 436 [Orig] ELECTRICAL ALARM, SAFETY, AND WARNING SYSTEM ------------------------------------------------ 31 441 [Orig] COMMUNICATION SYSTEMS --------------------------------------------------------------------------------------------- 32 443 [Orig] VISUAL AND AUDIBLE COMMUNICATION SYSTEMS ------------------------------------------------------- 34 444 [Orig] AUTOMATIC IDENTIFICATION SYSTEM (AIS) ------------------------------------------------------------------ 35 505 [Orig] PIPING, HOSE, AND VALVE REQUIREMENTS-------------------------------------------------------------------- 35 512 [Orig] HEATING ---------------------------------------------------------------------------------------------------------------------------- 36 513 [Orig] VENTILATION -------------------------------------------------------------------------------------------------------------------- 36 526 [Orig] SCUPPER AND DECK DRAINAGE --------------------------------------------------------------------------------------- 37 529 [Orig] BILGE DRAINAGE AND PUMPS ------------------------------------------------------------------------------------------ 37 555 [Orig] FIRE EXTINGUISHING SYSTEM ----------------------------------------------------------------------------------------- 37 561 [Orig] STEERING AND CONTROL SYSTEM ---------------------------------------------------------------------------------- 38 565 [Orig] TRIM CONTROL SYSTEM -------------------------------------------------------------------------------------------------- 38

Attachment 1 ii SPECIFICATION

581 [Orig] ANCHOR AND HANDLING SYSTEMS --------------------------------------------------------------------------------- 38 582 [Orig] MOORING, TOWING, AND TIE DOWN -------------------------------------------------------------------------------- 39 600 [Orig] GENERAL OUTFIT -------------------------------------------------------------------------------------------------------------- 41 602 [Orig] HULL, MECHANICAL DESIGNATION, AND MARKING ------------------------------------------------------ 43 612 [Orig] HANDHOLDS ---------------------------------------------------------------------------------------------------------------------- 43 613 [Orig] CANVAS AND COVERS ------------------------------------------------------------------------------------------------------- 44 625 [Orig] WINDOWS --------------------------------------------------------------------------------------------------------------------------- 44 631 [Orig] COLORS, COATINGS, AND FINISH ------------------------------------------------------------------------------------- 46 633 [Orig] CATHODIC PROTECTION -------------------------------------------------------------------------------------------------- 47 634 [Orig] DECK COVERING --------------------------------------------------------------------------------------------------------------- 47 635 [A00004] HULL INSULATION AND DAMPING -------------------------------------------------------------------------------- 47 660 [Orig] SEATING ----------------------------------------------------------------------------------------------------------------------------- 48 670 [Orig] STOWAGE--------------------------------------------------------------------------------------------------------------------------- 48 703 [Orig] WEAPON AND AMMUNITION STORAGE --------------------------------------------------------------------------- 50 910 [Orig] TRAILER ----------------------------------------------------------------------------------------------------------------------------- 52

Attachment 1 iii SPECIFICATION

RECORD OF CONTRACT CHANGES

70Z02326R93250001

Version Date Purpose

Orig. 09/30/2026 Request for Proposal (RFP)

A00004 10/22/2026

The following sections were updated based on questions received:

1) Sections 042-1.16 through 042-1.19, 070-2.5, 079-2.2, 526-

1.3, and 625-1.2 were updated for consistency in referencing weight conditions.

2) Section 042-1.21 was added to provide a definition for

“Void”.

3) Section 071-1.4 was added to require inspection access for voids.

4) Section 073-1.3, its subparagraphs, and 073-1.4 were moved to 635

5) Previous Section 073-1.3.1, now 635-1.1.1 was revised to allow adhesive attachment for sound-attenuating and other insulation materials provided they are sealed.

6) Section 103-1.4 was reserved and inaccessible void language has been removed from the specification.

7) Section 114-2.1 was updated to include the use of handheld power tools for removal and replacement of the fender.

8) In Section 191 term “flotation bag” was changed to “bag”.

9) Section 191-1.1 was revised to allow unbagged foam in voids; the other allowance (i.e., other interior spaces) for unbagged foam has been removed.

10) Section 191-1.2 through 4 was revised to make the flotation material requirement consistent and require voids to have openings to be able to remove both bagged and block flotation material.

11) Section 252-2.1.9 the “via physical sending unit” requirement for the fuel tank(s) level indicator(s) was revised and moved to section 261-1.7.

12) Section 261-1.3 was revised to require API-STD-607 fire-safe shutoff ball valve.

13) Section 261-1.7 was revised to require a mechanical sending unit with a dedicated gauge.

14) Section 300-1.1 the IP67 and watertight enclosure requirement was clarified and an exception was added for battery connections.

15) Section 301-1.2 was updated to remove “… without removing equipment.”.

Attachment 1 iv SPECIFICATION

70Z02326R93250001

Version Date Purpose

16) Section 332-3.2 was updated to change the navigation lights single toggle switch to allow a multi-selector switch and a separate towing light switch.

17) Section 410-1.3 was revised from “… non-polarized” to

“…viewable by crew members wearing polarized glasses”.

18) Section 441-1.4 was revised to exempt internal speaker that cannot be cut-off from having a cut-off switch.

19) Section 441-4.3 was updated to add a requirement for simultaneous transmit and receive over the intercom and one other selected voice circuit for each BCCS station.

20) Table 600-1, items numbers 36 and 37 were revised from electric pump to OEM recommended pump.

21) Section 631-1.1 was revised to allow the cabin roof to be painted/coated.

22) Section 631-3 was added to provide surface preparation, coating system, and coloring for the painted/coated cabin roof, if provided.

23) Section 635 was added to consolidate insulation (thermal, acoustic, other) requirements.

Section C Attachment 1 Specification

Section C Attachment 1 1 SPECIFICATION

[Orig] GENERAL ADMINISTRATIVE REQUIREMENTS

042-1 [Orig] Definitions

042-1.1 [Orig] Calm Condition – One-foot or less seas with wind speed up to 8 knots.

042-1.2 [Orig] Communication Boundary – System of systems for internal and external communications that contains associated equipment, control systems, and signals. In the case of the RB-S III, this includes the VHF and UHF radios and antennas, the crew communication system, the loud hailer/siren, and the horn.

042-1.3 [Orig] Faying Surfaces – Contact surfaces of two materials forming a joint that may collect moisture.

042-1.4 [Orig] Human Factors Engineering (HFE) – Design discipline ensuring boat systems and equipment can be efficiently operated and maintained by the crew.

042-1.5 [Orig] Human Systems Integration (HSI) – Design discipline ensuring hardware supports human functions, safe operations, and crew quality of life.

042-1.6 [Orig] Hull, Mechanical, and Electrical (HM&E) Boundary – System of systems incorporating equipment, control systems, and signals associated with vessel power (mechanical and electrical), stability, and operation. For the RB-S III, this includes the engine control modules, steering control modules, electrical power generation control module, electrical power storage control module, the bilge pumps and alarms, the fire alarms, and any other equipment that is not considered part of the navigation or communication boundaries.

042-1.7 [Orig] Idle Speed – Speed in calm water at minimum engine RPM.

042-1.8 [Orig] Navigation Boundary – System of systems incorporating the equipment, control system, and signals used to accurately ascertain position and for planning/following a route from one place to another. In the case of the RB-S III, this includes the Scalable Integrated Navigation

System (SINS), the Automatic Identification System (AIS), and the global positioning systems

(GPS).

042-1.9 [Orig] Operate – Ability to transit and maneuver without structural or equipment damage or harm to the crew.

042-1.10 [Orig] RB-S III and "the boat" – Refers to the U.S. Coast Guard Response Boat Small (RB-S)

Third Generation (III) as defined in this Specification.

042-1.11 [Orig] Propulsion System – System that provides movement, including outboard engines, fuel delivery, speed and directional controls, steering, and performance sensors / displays.

042-1.12 [Orig] Watertightness Degree 1 – As defined in ISO 12216, section 3.8.2, “Constructed to withstand continuous immersion.”

042-1.13 [Orig] Watertightness Degree 2 – As defined in ISO 12216, section3.8.2, “Constructed to prevent ingress of water when tested according to D.2.”

042-1.14 [Orig] Watertightness Degree 3 – As defined in ISO 12216, section 3.8.2, “Constructed to minimize seepage when tested according to D.2.2.1.”

042-1.15 [Orig] Watertight Enclosure – An enclosure that meets the IP 67 requirements of IEC standard

60529.

042-1.16 [A00004] Lightship Weight Condition – The weight of the boat with outfit, and operating liquids at normal operating levels. Lightship weight condition does not include fuel or personnel.

Section C Attachment 1 2 SPECIFICATION

042-1.17 [A00004] Performance Weight Condition – Lightship weight condition plus four crewmembers

(220 lbs each, seated in the shock mitigating seats), full fuel, 150 lbs of cargo, two weapons (30 lbs each), and four ammunition/containers (20 lbs each).

042-1.18 [A00004] Full-Load Weight Condition – Performance weight condition plus eight additional passengers (220 lbs each, located in designated location(s)).

042-1.19 [A00004] Trailered Weight Condition – Lightship weight condition plus full fuel, and trailer.

042-1.20 [Orig] Working Deck – Exterior decks including the aft deck, side decks, and forward deck.

042-1.21 [A00004] Void – An unmanned compartment that is: less than 10% of the hull volume, unventilated, sealed-requiring removal of a semi-permanently installed closure (e.g. bolted and gasketed) to access, and does not require access to conduct operations.

042-2 [Orig] Reference Standards

042-2.1 [Orig] The latest version indicated by Record Of Contract Changes’s “Orig” date of the following standards shall be abided by for the design and construction of the RB-S III:

042-2.1.1 [Orig] General and Testing: American Boat and Yacht Council (ABYC) Standards and

Technical Information Reports for Small Craft

042-2.1.1.1 [Orig] ABYC A-4: Fire Fighting Equipment.

042-2.1.1.2 [Orig] ABYC A-6: Refrigeration and Air Conditioning Equipment (if installed).

042-2.1.1.3 [Orig] ABYC A-7: Liquid and Solid Fueled Boat Heating Systems (if a diesel heater is installed, gasoline heater is prohibited).

042-2.1.1.4 [Orig] ABYC A-16: Installation of Electric Navigation Lights.

042-2.1.1.5 [Orig] ABYC A-24: Carbon Monoxide Detection Systems.

042-2.1.1.6 [Orig] ABYC A-31: Battery Chargers and Inverters (if installed).

042-2.1.1.7 [Orig] ABYC A-33: Emergency Engine/Propulsion Cutoff Device (physical removable lanyard required).

042-2.1.1.8 [Orig] ABYC E-2: Cathodic Protection.

042-2.1.1.9 [Orig] ABYC E-10: Storage Batteries.

042-2.1.1.10 [Orig] ABYC E-11: AC and DC Electrical Systems on Boats.

042-2.1.1.11 [Orig] ABYC E-13: Lithium Ion Batteries.

042-2.1.1.12 [Orig] ABYC H-1: Field of Vision from the Helm Position.

042-2.1.1.13 [Orig] ABYC H-2: Ventilation of Boats Using Gasoline.

042-2.1.1.14 [Orig] ABYC H-22: Electric Bilge Pump Systems.

042-2.1.1.15 [Orig] ABYC H-24: Gasoline Fuel Systems.

042-2.1.1.16 [Orig] ABYC H-27: Seacocks, Thru-Hull Fittings, and Drain Plugs.

042-2.1.1.17 [Orig] ABYC H-40: Anchoring, Mooring, and Strong Points.

042-2.1.1.18 [Orig] ABYC H-41: Reboarding Means, Ladders, Handholds, Rails, and Lifelines.

042-2.1.1.19 [Orig] ABYC P-14: Mechanical Propulsion Control Systems.

042-2.1.1.20 [Orig] ABYC P-22: Steering Wheels.

Section C Attachment 1 3 SPECIFICATION

042-2.1.1.21 [Orig] ABYC T-5: Safety Signs and Labels.

042-2.1.1.22 [Orig] ABYC TY-28: Boat Lifting and Storage.

042-2.1.1.23 [Orig] ABYC A-14: Gasoline and Propane Gas Detection Systems (gasoline fume detection system is required).

042-2.1.1.24 [Orig] ABYC A-27: Alternating Current (AC) Generator Sets (if an AC generator is installed).

042-2.1.1.25 [Orig] ABYC A-32: AC Power Conversion Equipment and Systems (if shore power or other AC conversion equipment is installed).

042-2.1.1.26 [Orig] ABYC H-30: Hydraulic Systems (if hydraulic steering or other hydraulic systems are installed).

042-2.1.1.27 [Orig] ABYC H-32: Ventilation of Boats Using Diesel Fuel (if a diesel fuel system is installed and only allowed for diesel heater).

042-2.1.1.28 [Orig] ABYC H-33: Diesel Fuel Systems (if a diesel heater is installed).

042-2.1.1.29 [Orig] ABYC P-17: Mechanical Steering Systems (if this steering arrangement is used

042-2.1.1.30 [Orig] ABYC P-21: Manual Hydraulic Steering Systems (if this steering arrangement is used).

042-2.1.1.31 [Orig] ABYC P-28: Electric/Electronic Systems for Propulsion and Steering (if this steering arrangement is used ).

042-2.1.2 [Orig] Stability: International Organization for Standardization (ISO) Std 12217-1: Small

Craft Stability and Buoyancy

042-2.1.3 [Orig] Hull Structure: ISO Std 12215: Small Craft – Hull Construction and Scantlings (parts

5 and 6)

042-2.1.4 [Orig] Aluminum Welding:

042-2.1.4.1 [Orig] AWS D3.7: Guide for Aluminum hull welding

042-2.1.4.2 [Orig] AWS D1.2: Structural welding code – Aluminum

042-2.1.5 [Orig] Cockpit Drainage: ISO Std 11812: Small Craft – Watertight or Quick-Draining

Recesses and Cockpits

042-2.1.6 [Orig] Windows, Hatches, Watertightness: ISO Std 12216: Small craft – windows, portlights, hatches, deadlights and doors – strength and watertightness requirements

042-2.1.7 [Orig] Navigation Lights and Horn: USCG Navigation Rules International-Inland

(NAVRULS) COMDTINST M16672.2

042-2.1.8 [Orig] Weapons Mounts: Small Craft Crew Served Weapons Integration Guidance and

Certification Process (NSWCCD-23-TM-2009/63)

042-2.2 [Orig] Equipment shall be installed per Original Equipment Manufacturer (OEM) recommendations for intended service.

Section C Attachment 1 4 SPECIFICATION

[Orig] RB-S III OPERATIONS

044-1 [Orig] General

044-1.1 [Orig] Mission Requirements: Used by USCG Stations and Maritime Safety and Security

Teams (MSST) as a multi-mission asset to conduct following primary missions:

044-1.1.1 [Orig] Search and Rescue (SAR): Conduct searches; tow other vessels aft; tow vessels alongside in calm conditions; transfer able and incapacitated persons and SAR equipment to/from other vessels; recover persons in water (PIW); deploy dewatering pump

044-1.1.2 [Orig] Maritime Law Enforcement: Conduct routine and high-risk boardings (e.g., recreational boating safety, commercial fisheries) utilize tactical communications, lights, sirens, and loudhailers to establish authority; requires a highly stable platform for alongside boarding operations, and precise maneuverability for close-quarters vessel interactions

044-1.1.3 [Orig] Ports, Waterways and Coastal Security (PWCS): Conduct patrols; enforce security zones; interdict and board vessels; requires speed, acceleration and agility to outmaneuver hostile vessels and use of force to compel compliance to disable hostile or evasive targets, trailerable for long distance deployment to other operating areas

044-1.1.4 [Orig] Drug Interdiction (DI) and Migrant Interdiction (MI): Conduct patrols; pursue, interdict, and board vessels; requires speed, acceleration, and agility to outmaneuver hostile vessels and use of force to compel compliance to disable hostile or evasive targets; recovery of contraband and detain suspects

[Orig] RB-S III PERFORMANCE REQUIREMENTS

051-1 [Orig] Speed and Range

051-1.1 [Orig] Speed – The RB-S III shall have a full speed of not less than 45 knots in Calm Condition at Performance Weight Condition.

051-1.2 [Orig] Range – The RB-S III shall have a range of at least 150 nautical miles (NM) at a cruising speed of 25 knots in Calm Condition at Performance Weight Condition, with a 10% fuel reserve remaining.

051-2 [Orig] Operating Environment

051-2.1 [Orig] Operate and Survive – The RB-S III shall operate safely day and night in seas up to six feet, transiting in any heading relative to seas and wind at speeds up to 25 knots. The RB-S III shall survive in eight-foot seas.

051-2.2 [Orig] Water Temperatures – The RB-S III shall be able to be moored and operated continuously in water temperatures from 28°F to 95°F.

051-2.3 [Orig] Air Temperatures – The RB-S III shall be able to be trailered, moored and operated continuously in air temperatures from 0°F to 120°F, without special procedures to prevent freezing or damage after subfreezing operations.

051-3 [Orig] Maneuvering and Seakeeping

051-3.1 [Orig] The RB-S III shall remain dynamically stable under all loading conditions and speeds, without instabilities such as porpoising, chine walking, high-speed roll, or bow steering or outboard torque-steer.

Section C Attachment 1 5 SPECIFICATION

051-3.2 [Orig] The RB-S III shall maintain steady turn rates at all speeds and loading conditions without skidding. It shall exit turns smoothly without requiring excessive steering force.

051-3.3 [Orig] The RB-S III shall maneuver straight in reverse and perform backing turns to port and starboard without deck or cockpit flooding. Steering shall operate fully from hard port to hard starboard without damage or excessive force.

051-4 [Orig] Motion and Acceleration Limits

051-4.1 [Orig] The structure, equipment, machinery, and outfit shall remain operable and undamaged under motions and accelerations from all sea states and operating speeds.

051-5 [Orig] Towing

051-5.1 [Orig] The towing arrangement and supporting structure shall be configured to allow towing astern and alongside.

051-6 [Orig] Annual Hours of Operation

051-6.1 [Orig] The RB-S III shall be designed to operate 600 hours per year for 15 years.

051-7 [Orig] Weight Limitation

051-7.1 [Orig] The RB-S III trailered weight condition shall not exceed 12,000 pounds.

[Orig] GENERAL REQUIREMENTS FOR DESIGN AND CONSTRUCTION

070-1 [Orig] RB-S III Construction

070-1.1 [Orig] Equipment, machinery, and materials shall be suitable to support extended exposure and reliable operation in a marine environment.

070-1.2 [Orig] Unless otherwise specified in the contract, all installed materials, components, and equipment shall be new.

070-1.3 [Orig] The RB-S III shall be free of spaces where water from rain or sea spray can accumulate and be trapped.

070-2 [Orig] Principal Characteristics

070-2.1 [Orig] The RB-S III shall meet the following principal characteristics:

070-2.2 [Orig] Length (overall) – Shall not exceed 37 feet on the trailer and 32 feet 6 inches in water, measured from the forward-most extremity to the aft-most extremity, including fully deployed fendering, lowered engines, and taffrail in place.

070-2.3 [Orig] Beam (overall) – Measured from the outermost extremities without removing any components, the beam:

070-2.3.1 [Orig] Shall not exceed 8 feet 6 inches while trailered. If an air bladder is used as part of the fendering system, this measurement may be taken in the deflated condition.

070-2.3.2 [Orig] Shall not exceed 8 feet 10 inches while in the water with fully inflated air bladder, if used.

070-2.4 [Orig] Height – Shall not exceed 11 feet 6 inches to the highest fixed point in the trailered configuration.

Section C Attachment 1 6 SPECIFICATION

070-2.5 [A00004] Draft – Shall not exceed 3 feet 3 inches with the engine lowered at full-load weight condition.

070-3 [Orig] General Arrangements

070-3.1 [Orig] The RB-S III shall have a cabin.

070-3.2 [Orig] The RB-S III shall be operable with 12 persons onboard: a four-person crew and eight passengers. Seating shall include:

070-3.2.1 [Orig] Four full isolation, shock-mitigating seats in a two-by-two forward-facing configuration within the cabin.

070-3.2.2 [Orig] An exterior fold-down seat facing aft, mounted on the cabin’s aft bulkhead, with a clear sightline to the aft tow post.

070-3.3 [Orig] The RB-S III cabin seating and deck arrangements shall provide firing arcs as indicated in Figure 070-1. The firing arcs do not need to be unimpeded. Stanchions or passenger overhead protection supports may be within the firing arcs, provided they do not prevent sighting a shoulder fired weapon in the intended firing arc.

[Orig] Figure 070-1: Firing Arcs

070-3.3.1 [Orig] The cabin shall be fitted with “spotter windows” in the cabin overhead to provide lateral and forward visibility for the coxswain and forward crewmember when the RB‑S III is maneuvering in sharp turns. Spotter windows shall be tinted to minimize solar heat gain and glare.

070-3.3.2 [Orig] The aft port seat shall feature a designated workspace equipped with a stowable table.

The table mechanism shall be capable of being locked in both the deployed and stowed positions without the use of tools.

Section C Attachment 1 7 SPECIFICATION

070-3.3.3 [Orig] The aft seats shall be elevated three inches higher than the forward seating positions to allow the aft crewmembers to have a forward line of sight through the cabin forward‑facing windows.

070-3.3.4 [Orig] The cabin arrangement shall incorporate dedicated receptacles (e.g., fabric, webbing, or non-rigid cup holders) at each of the four crewmember seats to accommodate the secure stowage of personal water containers. The receptacles may be integrated into the seating structure or mounted to adjacent cabin structures, provided they are accessible to the crewmembers while seated.

070-3.4 [Orig] The RB-S III working deck space shall allow adequate passage around the boat without obstacles, tripping hazards, or snag hazards.

070-3.4.1 [Orig] There shall be forward and aft working decks, each accommodating weapon mounts for M240B light machine guns (LMG).

070-3.4.2 [Orig] The forward working deck shall be recessed to provide a protected area for crewmembers operating forward of the cabin.

070-3.4.3 [Orig] The aft working deck shall have the following features:

070-3.4.3.1 [Orig] A minimum of 40 square feet of clear deck space.

070-3.4.3.2 [Orig] Four tie-down points capable of securing a 36-inch wide × 36-inch deep x 36-inch high, 150 lb container.

070-3.4.4 [Orig] The deck area on both sides of the cabin shall have a minimum clear width of six inches, measured from the most outboard structure of the cabin to most outboard deck structure. The deck structure may partially cover the fender system, provided it maintains radiused edges and sufficient clearance to prevent chafing, puncturing, or otherwise degrade the fender’s ability to absorb boat impacts.

070-4 [Orig] Crew Habitability

070-4.1 [Orig] The cabin shall be designed and configured to minimize the negative effects on personnel of operating in hot and humid climates without an air conditioning system.

070-4.2 [Orig] The cabin shall incorporate features to minimize heat transmission such as thermal insulation, heat reflective coatings, window coatings, easily deployed or retracted durable interior window covers, or other features.

070-4.3 [Orig] The cabin shall incorporate features to support interior airflow and air exchange such as window or vent openings, scoops, ducting, forced ventilation, supply and exhaust fans or other features.

[Orig] ACCESS

071-1 [Orig] General

071-1.1 [Orig] The RB-S III shall have sufficient access points to perform routine maintenance and damage-control inspections while underway, without the use of tools, and while crew are wearing personal protective equipment and law enforcement gear.

071-1.2 [Orig] Access shall be provided to bilge areas, and bilge access points shall allow maintenance, inspection for water content, complete dewatering, and cleaning of residue at the lowest point of the bilge.

Section C Attachment 1 8 SPECIFICATION

071-1.3 [Orig] Access to fuel tanks, fuel hoses, and fittings shall be provided for repair and maintenance without removing any permanent structural components.

071-1.4 [A00004] Access shall be provided for voids to allow for inspection.

071-2 [Orig] Cabin Access and Egress

071-2.1 [Orig] The forward and aft faces of the cabin shall have a door or hatch for access to the respective working deck.

071-2.2 [Orig] Cabin window location, design, and configuration shall provide emergency egress routes for cabin occupants in the event cabin doors or hatches become unusable.

071-3 [Orig] Console Design

071-3.1 [Orig] The console design shall allow modular replacement of components to mitigate expected obsolescence, particularly for electronics; features may include console faceplates, equipment racks, or bolt-on subassemblies.

071-3.2 [Orig] The console shall be designed to facilitate efficient maintenance and replacement of components. Equipment shall be arranged to minimize the need to remove other components for access, and commonly serviced items shall be prioritized for accessibility.

[Orig] NOISE AND VIBRATION

073-1 [Orig] General

073-1.1 [Orig] Onboard A-weighted noise levels from idle to full speed, in calm condition, shall be less than 86 dBA at head level at each of the four shock-mitigating seats with the cabin doors and windows closed.

073-1.2 [Orig] The boat and all components, including outfit items, shall be free of vibrations that could damage the structure, machinery, or systems, endanger personnel, or interfere with operation or maintenance. No structural component or equipment shall have a natural frequency that causes damaging or unsafe resonance under operating conditions.

073-1.3 [A00004] Reserved – Moved to Section 635

073-1.3.1 [A00004] Reserved – Moved to Section 635

073-1.3.2 [A00004] Reserved – Moved to Section 635

073-1.3.3 [A00004] Reserved – Moved to Section 635

073-1.3.4 [A00004] Reserved – Moved to Section 635

073-1.4 [A00004] Reserved – Moved to Section 635

[Orig] ADDITIONAL WELDING REQUIREMENTS

074-1 [Orig] General

074-1.1 [Orig] In addition to AWS D1.2/D3.7 and ISO 12215, all structural aluminum welding shall comply with the following requirements:

074-1.1.1 [Orig] Penetration: Full penetration welds are required for all shell plating butts/seams (keel, bottom, side, transom, and deck) and the webs and flanges of all primary longitudinals, girders, and engine foundations.

Section C Attachment 1 9 SPECIFICATION

074-1.1.2 [Orig] Double Continuous: Required for all highly loaded areas, including engine foundations, ride control, lifting devices, and tow bitts.

074-1.1.3 [Orig] Joint Staggering: 4-way weld intersections (butts crossing seams) are prohibited.

Shell plating butts shall be staggered a minimum of 18 inches. Longitudinal member butts shall be at least 6 inches from plating joints and staggered 12 inches from adjacent member joints.

074-1.1.4 [Orig] Stress Relief: Scallops/weld reliefs shall be utilized where seamed flanged members cross a shell seam. Welds at structural corners or changes in direction shall wrap around continuously and extend at least one flange-width past the corner.

074-1.1.5 [Orig] ISO Calculation Fix: For ISO 12215-6 Table C.2 calculations, an aluminum weld factor of 0.14 shall be used for connections between girders/transverses/stringers and flanges.

074-1.1.6 [Orig] All recommendations and information in AWS D3.7 (series) Guide for Aluminum

Hull Welding shall be followed. AWS recommendations shall supersede those of ISO 12215 in case of conflict.

074-2 [Orig] Welding Documentation

074-2.1 [Orig] The Contractor shall complete and maintain all welding documentation (including WPS, PQR, welder certifications, and continuity logs) in accordance with AWS D1.2. Upon USCG request, the Contractor shall provide all the records in a single, consolidated welding documentation package.

[Orig] MECHANICAL FASTENERS

075-1 [Orig] General

075-1.1 [Orig] Mechanical fasteners shall be made of 316 series stainless steel unless otherwise specified. Fasteners shall be installed in accordance with best marine practices and the applicable ABYC standards to ensure retention and prevent galvanic corrosion. Contractor installed through-bolts shall extend past the nut by a minimum of one full thread, but no more than one diameter of the bolt.

075-1.2 [Orig] Bolted connections shall have 316-series stainless steel nylon-insert lock nuts (Nyloc type), mechanical locking washers, or an approved marine-grade thread-locking compound.

075-1.3 [Orig] Direct threading into aluminum is prohibited without the use of stainless steel or equivalent inserts.

075-1.4 [Orig] Rivets are restricted to non-structural, non-removable applications.

075-1.5 [Orig] Rivnuts may be made of aluminum.

075-1.6 [Orig] [Orig] Dissimilar metal fasteners shall be dielectrically isolated from the aluminum structure across all contact points (head, shank, and threads). The isolation method shall withstand installation torque, resist marine washout, and maintain lifelong galvanic protection without compromising joint strength.

Section C Attachment 1 10 SPECIFICATION

[Orig] SAFETY

077-1 [Orig] Protection of Equipment, Piping and Cabling from Damage

077-1.1 [Orig] Piping, tubing, hoses, and cables that are not enclosed or inherently protected by the boat’s permanent structure shall be fitted with protective covers or sheathing to safeguard against mechanical and physical damage during operations, inspections, and maintenance.

[Orig] MATERIALS

078-1 [Orig] General

078-1.1 [Orig] The RB-S III shall be constructed of materials suitable for a marine environment, with attention to strength, fatigue resistance, impact resistance, UV light resistance, corrosion resistance, consequences of material failure, and reparability.

078-1.2 [Orig] When materials are referred to without further identification, they shall conform to applicable standards. Material certifications shall be maintained by the Contractor and made available to the KO upon request.

078-2 [Orig] Aluminum

078-2.1 [Orig] Pipe or Tube: ASTM B221 (Extruded) 5086-H111 or 5083-H112, ASTM B210 (Drawn)

5086-H32

078-2.2 [Orig] Plate or Sheet: ASTM B928 Alloy 5086- H116 or H321 or Alloy 5456-H116 or H321 or

5083-H116 or H321

078-2.3 [Orig] Bar or Shapes: ASTM B221 (Extruded) Alloy 5086-H111 or H112 or 5083-H111 or

H112 or Alloy 5456-H111 or H112

078-2.4 [Orig] Alloy 5052 of SAE AMS-QQ-A-250/8 may be used for non-welded sheathing, expanded aluminum, and trim with thickness less than 1/8 in.

078-2.5 [Orig] ASTM B241 Alloy 6061-T6 may be used as structural components, as long as the allowable stresses are based on the zero temper (annealed) condition, for the following applications:

078-2.5.1 [Orig] Any location: Pipes

078-2.5.2 [Orig] Within the cabin: Pipes, tubing, gutter, and angle shapes

078-2.6 [Orig] Non-structural items of trim and outfit, such as castings and hardware, may be Alloy

6063 or Alloy 6061 of ASTM B221, or Alloy 356.1, 356.2, or A356.2 of ASTM B179.

078-3 [Orig] Stainless Steel

078-3.1 [Orig] Wrought: AISI 316, AISI 316L, AISI 302, or AISI 304

078-3.2 [Orig] Pipe or Tubing: ASTM A312 or ASTM A269, Grade 316L, 321 or 347

078-3.3 [Orig] Bars or Shapes: ASTM A276/A276M Grade 316L

078-3.4 [Orig] The following shall be applicable wherever stainless steel is used:

078-3.4.1 [Orig] For welded fittings, couplings, and similar items, unless stated otherwise in this contract, stainless steel 316L shall be used.

078-3.4.2 [Orig] For non-welded applications where contact with sea water or spray is possible, stainless steel 316 shall be used.

Section C Attachment 1 11 SPECIFICATION

078-3.4.3 [Orig] For interior, non-welded applications where exposure to seawater is not anticipated, including the inside of hatches, stainless steel 302 or 304 may be used.

078-3.5 [Orig] For underwater appendages, if an application requires high strength, ASTM

A240/A240M S32205 duplex stainless steel may be used.

078-4 [Orig] Flotation Material

078-4.1 [Orig] Flotation material shall be closed-cell resilient foam compliant with 33 CFR 183.114 and flammability requirements of 49 CFR 571.302. Polystyrene and blown-in-place polyurethane foams are prohibited. Foam may be either expanded and consolidated bead type or continuous type per Commercial Item Description A-A-59135 Class 1 or 2, or Commercial Item Description

ID A-A-59136 Class 1 or 2, Grade A and C Type I.

078-5 [Orig] Miscellaneous Requirements

078-5.1 [Orig] Wood in any form shall not be used unless otherwise specified.

078-5.2 [Orig] Materials containing asbestos or refractory fibers (ceramic fiber/aluminum-silica material) shall not be used.

078-5.3 [Orig] Valves, fittings, and components containing copper alloys shall not be used, except for electrical wiring or items enclosed within OEM equipment.

078-5.4 [Orig] Waterproof adhesive bonds shall use polyurethane compounds.

078-5.5 [Orig] If carbon fiber is used in any equipment or outfitting, care shall be taken to isolate the fibers from raw aluminum.

078-5.6 [Orig] No lubricants used in construction are to be composed of graphite. Graphite (lead) pencils shall not be used to mark uncoated aluminum. Grease pencils and other possible sources of hydrogen contamination shall not be used on aluminum prior to welding.

078-6 [Orig] Electrolytically Dissimilar Metals and Corrosion Protection

078-6.1 [Orig] Direct contact of electrolytically dissimilar metals is prohibited; suitable insulation or barriers shall be provided to prevent electrolytic corrosion.

078-6.2 [Orig] Direct contact between aluminum alloys and porous materials, pockets, crevices, or joints that retain moisture is prohibited. Aluminum surfaces intended for contact with porous materials shall be coated as faying surfaces.

078-7 [Orig] Adhesives and Coating Systems

078-7.1 [Orig] Materials that emit noxious fumes below 203°F after curing or drying shall not be used.

078-7.2 [Orig] One-part polyurethane coating systems, caulking, and adhesive materials (moisture-cured or heat-cured) may be used.

078-7.3 [Orig] Two-part systems may be used for UV protection, abrasion resistance, coatings, insulation, and adhesives. They shall not contain isocyanate compounds, including TDI, HDI, or

MDI.

078-7.4 [Orig] Marine-grade pressure-sensitive adhesives (PSA) and acrylic adhesives may be used for the installation of deck coverings, non-skid treads, labels, and non-structural mounting hardware

(e.g., wire-routing stand-offs and insulation hangers). The selected adhesive shall provide continuous adhesion under constant exposure to saltwater, ultraviolet (UV) light, and temperature extremes from 0°F to 120°F without delamination or edge-lifting. PSAs and

Section C Attachment 1 12 SPECIFICATION adhesive tapes shall not be used to secure equipment foundations, seating, weapons mounts, or any load-bearing structural components.

078-8 [Orig] Mercury Exclusion

078-8.1 [Orig] Equipment containing mercury shall not be installed on the boat.

[Orig] STABILITY AND BUOYANCY

079-1 [Orig] General

079-1.1 [Orig] The RB-S III shall meet the stability and buoyancy requirements of ISO 12217-1, Small craft – Stability and buoyancy assessment and categorization, Category C, Option 4.

079-1.1.1 [Orig] Only low-density materials shall be used to meet the flotation elements in accordance with ISO 12217-1, paragraph 6.8, Annex F, and Annex G.

079-1.1.2 [Orig] The ISO 6185-3 standard shall not be used to satisfy flotation requirements for the

RB-S III.

079-1.2 [Orig] The weight of crew and passengers shall be 220 pounds (100 kg) per person for all ISO requirements. Within ISO 12217-1, the test weights of 6CL in paragraph F.3.1 and 60 + 15CL in paragraph F.4.1 shall be increased by the ratio of 100 kg / 75 kg (resulting in 8CL and 80 +

20CL, respectively).

079-1.3 [Orig] No surface of the boat, except over the fender, shall be excluded from the crew area for the purposes of compliance with ISO 12217-1.

079-2 [Orig] Trim, List, and Heel Limits

079-2.1 [Orig] The RB-S III shall not trim by the bow or list more than one degree in the static condition at full-load or performance weight condition. Ballast shall not be used to meet this requirement.

079-2.2 [A00004] The RB-S III shall not heel more than two degrees at any speed when running straight ahead in calm conditions at performance weight condition. If equipped, trim control devices shall be fully retracted or set equally port and starboard when measuring heel.

[Orig] HUMAN SYSTEMS INTEGRATION (HSI)

088-1 [Orig] General

088-1.1 [Orig] The RB-S III, its integrated subsystems, and user/maintainer interfaces shall incorporate relevant HSI design principles, processes, tools, and techniques in accordance with ASTM

F1166 and shall address issues identified in the High Speed Craft Human Factors Engineering

Design Guide (ABCD-TR-08-01v1.0), Part 2, and Supplement (ABCD-TR-15-001)

088-2 [Orig] Human Factors Engineering (HFE)

088-2.1 [Orig] The RB-S III shall be arranged to accommodate from the 5th percentile female to the

95th percentile male, with the following measurements adjusted for USCG PPE and law enforcement equipment:

088-2.1.1 [Orig] 95th Percentile Male Chest Depth – 15 inches;

088-2.1.2 [Orig] 95th Percentile Male Shoulder Breadth – 24 inches; and

088-2.1.3 [Orig] 95th Percentile Male Hip/Knee Breadth (seated) – 26 inches.

Section C Attachment 1 13 SPECIFICATION

088-2.2 [Orig] Controls and displays shall be positioned to allow the crew to perform all mission-essential tasks from a seated and belted position during all operating conditions.

088-2.3 [Orig] Equipment or components requiring heavy lifting (over 30 pounds) and needing two or more crewmembers for safe handling shall be identified. The Contractor shall ensure adequate space and handles are available or shall provide mechanical aids to complete the task.

088-2.4 [Orig] Visibility for the coxswain shall be a modification of ABYC H-1, Field of Vision from the Helm Position: sections 1.7.1.2 (mirrors) and 1.7.1.3 (other means) shall not be used.

100 [Orig] STRUCTURE

100-1 [Orig] General

100-1.1 [Orig] The structure shall comply with ISO 12215, Small Craft – Hull Construction and

Scantlings. The hull structure material shall be aluminum, and the ISO 12215 design category shall be Category B.

100-2 [Orig] Details of Construction

100-2.1 [Orig] Construction details shall comply with ISO 12215. Practices described in ISO 12215 as

“good practice” are mandatory, except where they conflict with this Specification.

100-2.2 [Orig] The boat shall be considered a “craft with large deck openings” in accordance with ISO

12215-6, 6.2. The gunwales, upper topsides, and other hull structures above the neutral axis of the hull girder shall meet the longitudinal strength requirements of Annex D.

100-2.3 [Orig] Exposed plate edges and corners of structural components shall be dressed, ground, or radiused to prevent personnel injury. Sharp edges and corners that present personnel hazards or potential equipment damage shall be protected or rounded.

100-2.4 [Orig] Stiffeners such as longitudinals shall be perpendicular to the shell plating as nearly as is practical. Where hull geometry requires stiffeners to be installed non-perpendicular to the shell plating, the structural design calculations shall apply the angular correction mandate defined in

SOW to ensure adequate strength.

100-2.5 [Orig] Structural Continuity and Alignment

100-2.5.1 [Orig] Keels, keelsons, girders, any propulsion foundations, bottom longitudinals, and side longitudinals shall be continuous through transverse structures.

100-2.5.2 [Orig] Where intercostal members are used, misalignment shall not exceed one-half the thickness of the intercostal web.

100-2.5.3 [Orig] The webs of all longitudinal stiffeners shall be welded directly to transverse members.

100-2.6 [Orig] Terminations and Transitions

100-2.6.1 [Orig] Stiffener ends shall not terminate abruptly on shell, deck, or bulkhead plating; all terminations shall be gradually tapered (sniped), continued, or kneed.

100-2.6.2 [Orig] Stiffener height and flange width transitions shall be gradual, maintaining a minimum 3:1 slope.

100-2.6.3 [Orig] The use of bent plate structure in lieu of extruded or welded flanges is prohibited for hull structure below, and including, deck without prior Contracting Officer (KO) approval.

Inside bend radii shall not be less than the applicable minimum values in the AWS D3.7

Table 9. Formed bends shall be free of cracking, crazing, and detrimental tooling marks.

Section C Attachment 1 14 SPECIFICATION

100-2.7 [Orig] Inserts: Plating reinforcements shall be insert plates; the use of doubler plates is prohibited. An exception to the prohibition is beaching plate, if proposed.

100-2.8 [Orig] Flanges of structural members shall not be drilled for fasteners unless the members were sized with due consideration for such drilling. Brackets, margin plates, or special framing may be attached to the structure and used for mounting components without restrictions.

103 [Orig] TIGHTNESS

103-1 [Orig] General

103-1.1 [Orig] The hull, decks, and watertight bulkheads shall be watertightness degree 1.

103-1.2 [Orig] The cabin, doors, hatches, windows, and console shall be at least watertightness degree 2.

103-1.3 [Orig] Penetrations shall maintain the same watertightness degree as the surfaces in which they are installed.

103-1.4 [A00004] Reserved

114 [Orig] FENDERING SYSTEM

114-1 [Orig] General

114-1.1 [Orig] The RB-S III shall be equipped with a fixed fendering system capable of absorbing impact at any point and angle; coverage of the stern is optional.

114-1.2 [Orig] The fendering system shall consist of a solid foam or a hybrid (foam and air-bladder) design. If an air bladder is provided:

114-1.2.1 [Orig] It shall not be used as a flotation element;

114-1.2.2 [Orig] It shall be internal to the fendering system; and

114-1.2.3 [Orig] A pressure gauge shall be installed adjacent to each fill fitting. The gauge(s) shall clearly indicate high, normal, and low pressure zones.

114-1.3 [Orig] The fendering system shall designed to minimize damage, marring, or otherwise affecting the craft being boarded.

114-1.4 [Orig] The fendering system shall include a heavy-duty black rub strake on the outboard side to protect the fender from abrasion; it shall be resistant to puncture, impact, tearing, and sunlight degradation, and suitable for stepping on during repeated embarking and disembarking by boat crews.

114-1.5 [Orig] The fendering color shall be International Orange SAE AMS-STD-595 ID #12197.

114-1.6 [Orig] Fasteners shall be recessed to prevent damage to the fastener or to a vessel being boarded.

114-1.7 [Orig] Glue-on-type fendering and through-hull securing attachments are not acceptable.

114-1.8 [Orig] The portion of the hull in contact with the fendering system shall be treated as a faying surface.

114-1.9 [Orig] Flexible exterior lifelines (e.g., rope, wire, or cable-based systems) shall not be installed on the fender collar or the boat’s exterior structure.

Section C Attachment 1 15 SPECIFICATION

114-2 [Orig] Removal and Replacement

114-2.1 [A00004] The fendering system shall be attached in a manner that allows removal and replacement by four personnel, using common hand or handheld power tools, in less than eight hours.

114-3 [Orig] Taffrail

114-3.1 [Orig] The taffrail shall be provided to prevent the towline from contacting the engines at all towing angles.

114-3.2 [Orig] The taffrail shall be smooth to prevent line chafing and shall not restrict the engines' full trim and tilt range.

114-3.3 [Orig] The taffrail shall be removable or adjustable so as not to interfere with outboard engine removal and replacement.

131 [Orig] DECKS

131-1 [Orig] General

131-1.1 [Orig] Deck openings shall have well-rounded corners and be reinforced with an insert plate or coamings. Covers shall be stiffened near the perimeter to prevent distortion, buckling, or difficulty in sealing.

131-1.2 [Orig] Fittings and fasteners on the working deck shall be flush to prevent tripping hazards.

131-1.3 [Orig] Covers on openings at the gunwale periphery, transom deck, or bow deck that could admit water into the hull interior when uncovered shall meet watertightness degree 1.

150 [Orig] CABIN

150-1 [Orig] General

150-1.1 [Orig] The RB-S III shall have an cabin that provides protection from wind, sea spray, sun exposure, and precipitation for the crew and all equipment located inside the cabin.

150-1.2 [Orig] The lower ends of vertical cabin stiffeners shall be either continuous with hull or deck framing or shall be provided with suitable reinforcement structure on the hull or deck.

150-2 [Orig] Side Impact Protection and Rail

150-2.1 [Orig] A rigid,…