Attachment-1_SPC-HWX-II_SPEC_A00004_03-24-2025.pdf

Department of Homeland Security (DHS)

United States Coast Guard (USCG)

Special Purpose Craft – Heavy Weather

Second Generation

(SPC-HWX II)

Request for Proposal

(RFP)

SPECIFICATION

(SPEC)

24 MAR 2025

Revision A00004

A 0 0 0 0 4

USCG Special Purpose Craft – Heavy Weather Second Generation (SPC-HWX II) Request for Proposal (RFP)

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Specification Table of Contents

Section – 0 000-099 – GENERAL SPECIFICATION ADMINISTRATION

Section – 1 100-199 – HULL STRUCTURE

Section – 2 200-299 – PROPULSION

Section – 3 300-399 – ELECTRICAL

Section – 4 400-499 – ELECTRONICS

Section – 5 500-599 – AUXILIARY SYSTEMS

Section – 6 600-699 – OUTFITTING

Section – 7 700-799 – WEAPON SYSTEMS

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RECORD OF CONTRACT CHANGES

Version Date Purpose

Orig 12/05/2024 Initial Release

A00003 02/21/2025

Section 079-5.1 was updated to add a self-righting time to the intact stability self-righting requirement.

Section 200-4.1.2 was updated to allow for degraded performance of propulsion equipment that does not impact the availability of full propulsion following a rollover or capsize event.

Section 259-1.6 was updated to prevent the backflow of water or exhaust into a secured engine.

A00004 03/24/2025

Section 200-4.1 and 233-2.1 was updated based on industry feedback to allow a wider range of propulsion and genset systems solutions.

Section 200-4.1.1 was updated to clarify that the genset(s) is included in the inversion requirements. In addition, the “… or increase of wear” has been removed.

Section 200-4.1.2 was updated to remove 1) “The propulsion system shall not sustain damage in a rollover or capsize event”, as his is addressed in 200-4.1.1, and 2) “Full power shall be immediately available once self-righted” because of changes to the engine power output requirement in Section 200-4.1.3.

Section 200-4.1.3 was updated to clarify when the tilt sensor triggers for the systems by removing “…during an inversion event. The tilt sensor shall be triggered…”. In addition, a heel angle range was added to allow reduction of engine power output within the heel angle range.

Section 233-2.1 was updated in its entirety to 1) require proposed engines to have EPA certificate of compliance, and 2) allow previously certified engines that are modified to meet the unique SPC-HWX II performance requirements to be compliant with the specification if it can re-obtain an EPA certificate of compliance.

SPECIFICATION

(SPEC)

Section 0: General Specification

Administration

000-099

21 FEB 2025

Revision A00003

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Table of Contents

Section - 0 [ORIG] GENERAL SPECIFICATION ADMINISTRATION ................................. 0-1

042 [ORIG] GENERAL ADMINISTRATIVE REQUIREMENTS ........................................ 0-1

042-1 [Orig] Definitions ............................................................................................. 0-1

042-2 [Orig] Referenced Documents ......................................................................... 0-3

044 [ORIG] CONCEPT OF OPERATIONS ..................................................................... 0-4

044-1 [Orig] General ................................................................................................. 0-4

044-2 [Orig] Search and Rescue (SAR) .................................................................... 0-4

044-3 [Orig] Marine Safety ........................................................................................ 0-6

044-4 [Orig] Law Enforcement (LE) ........................................................................... 0-6

044-5 [Orig] Ports, Waterways, and Coastal Security (PWCS) .................................. 0-7

044-6 [Orig] Marine Environmental Protection (MEP) ................................................ 0-7

044-7 [Orig] Other Missions ...................................................................................... 0-7

044-8 [Orig] SPC-HWX II Primary Crew .................................................................... 0-7

044-9 [Orig] SPC-HWX II Relief Crew ....................................................................... 0-8

051 [ORIG] SPC-HWX II SYSTEM REQUIREMENTS .................................................... 0-9

051-1 [Orig] Speed and Range ................................................................................. 0-9

051-2 [Orig] Operating Environment.......................................................................... 0-9

051-3 [Orig] Mission Profiles ..................................................................................... 0-9

051-4 [Orig] Maneuvering ....................................................................................... 0-10

051-5 [Orig] Motion and Acceleration Limits ............................................................ 0-10

051-6 [Orig] Towing ................................................................................................ 0-11

051-7 [Orig] Damage Control and Survivability ....................................................... 0-11

051-8 [Orig] Service Life and Annual Hours of Operation ........................................ 0-11

051-9 [Orig] Parent Craft Requirements .................................................................. 0-11

070 [ORIG] GENERAL REQUIREMENT FOR DESIGN AND CONSTRUCTION .......... 0-13

070-1 [Orig] General ............................................................................................... 0-13

070-2 [Orig] Physical Constraints ............................................................................ 0-13

070-3 [Orig] General Arrangements ........................................................................ 0-13

070-4 [Orig] Exterior Decks ..................................................................................... 0-13

070-5 [Orig] Open Bridge ........................................................................................ 0-15

070-6 [Orig] Enclosed Bridge .................................................................................. 0-15

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070-7 [Orig] Relief Crew Seating ............................................................................. 0-16

070-8 [Orig] Medical Assistance Area ..................................................................... 0-16

070-9 Orig] Mast and Mast Platform........................................................................ 0-16

070-10 [Orig] Habitability ........................................................................................... 0-16

070-11 [Orig] Head and Shower ................................................................................ 0-17

071 [ORIG] ACCESS .................................................................................................... 0-18

071-1 [Orig] General ............................................................................................... 0-18

071-2 [Orig] Console Design ................................................................................... 0-19

073 [ORIG] NOISE AND VIBRATION ........................................................................... 0-20

073-1 [Orig] General .............................................................................................. 0-20

074 [ORIG] WELDING .................................................................................................. 0-21

074-1 [Orig] General ............................................................................................... 0-21

074-2 [Orig] Code ................................................................................................... 0-21

074-3 [Orig] Non-Destructive Inspection ................................................................. 0-21

074-4 [Orig] Restrictions ......................................................................................... 0-22

075 [ORIG] MECHANICAL FASTENERS ..................................................................... 0-23

075-1 [Orig] General ............................................................................................... 0-23

076 [ORIG] RELIABILITY AND MAINTAINABILITY ...................................................... 0-24

076-1 [Orig] General ............................................................................................... 0-24

076-2 [Orig] Equipment Specific Values .................................................................. 0-24

077 [ORIG] SAFETY ..................................................................................................... 0-25

077-1 [Orig] Spray Shields and Protective Covers .................................................. 0-25

077-2 [Orig] Protection of Equipment, Piping, and Cabling from Damage ............... 0-25

078 [ORIG] MATERIALS .............................................................................................. 0-26

078-1 [Orig] General .............................................................................................. 0-26

078-2 [Orig] Aluminum ........................................................................................... 0-26

078-3 [Orig] Stainless Steel .................................................................................... 0-26

078-4 [Orig] Flotation Material ................................................................................ 0-27

078-5 [Orig] Miscellaneous Requirements............................................................... 0-27

078-6 [Orig] Electrolytically Dissimilar Metals and Corrosion Protection .................. 0-27

078-7 [Orig] Adhesives and Coating Systems ......................................................... 0-28

078-8 [Orig] Mercury Exclusion ............................................................................... 0-28

079 [ORIG] SEAWORTHINESS ................................................................................... 0-29

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079-1 [Orig] General ............................................................................................... 0-29

079-2 [Orig] Intact Stability ...................................................................................... 0-29

079-3 [Orig] Damaged Stability ............................................................................... 0-29

079-4 [Orig] Towing Stability ................................................................................... 0-29

079-5 [Orig] Self-Righting Capabilities .................................................................... 0-31

079-6 [Orig] Control Surfaces and Maneuverability ................................................. 0-31

088 [ORIG] HUMAN SYSTEMS INTEGRATION (HSI) ................................................. 0-32

088-1 [Orig] General ............................................................................................... 0-32

088-2 [Orig] Human Factors Engineering ................................................................ 0-32

096 [ORIG] WEIGHT CONDITIONS ............................................................................. 0-34

096-1 [Orig] Loading Conditions .............................................................................. 0-34

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SECTION - 0 [ORIG] GENERAL SPECIFICATION ADMINISTRATION

042 [ORIG] GENERAL ADMINISTRATIVE REQUIREMENTS

042-1 [Orig] Definitions

042-1.1 [Orig] Butt Weld – Transverse oriented joint between two plates.

042-1.2 [Orig] Calm Condition – Seas less than 1 foot with wind speed of not more than 10 knots.

042-1.3 [Orig] Configuration Item (CI) – An essential support component of the boat that is treated as a self-contained unit for the purposes of identification and change control. Typically, the Configuration Item (CI) will be a system (e.g., propulsion engine) or an individual item piece-part (e.g., bilge pump) where the CI will be visible on the list of materials within a drawing. Otherwise, the CI may be a significant part or component of a system that comprises a higher-level CI (e.g., an alternator on the propulsion engine). Information within the drawing and the Master Equipment Configuration List (MECL) shall be consistent.

042-1.4 [Orig] Communication Boundary – System of systems for internal and external communications that contains associated equipment, control systems, and signals. In the case of the SPC-HWX II, this includes the VHF and UHF radios and antennas, the HF radio and antenna, the crew communication system, the loud hailer/siren, and the horn.

042-1.5 [Orig] Dry Circle – A dry circle is an area at a particular longitudinal location that remains above the waterline at all times during a roll from 0 through 360 degrees.

[Orig] Figure 042-1 - Example of Dry Circle

042-1.6 [Orig] Extended Ship Work Breakdown Structure (ESWBS) – Provided as Government Furnished Information (GFI), the Extended Ship Work

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Breakdown Structure (ESWBS) is a method to integrate design, configuration, and logistics through a standard coding of the work breakdown structure for boat systems. This contract will limit the ESWBS to the first three numerals.

042-1.7 [Orig] Faying Surfaces – Contact surfaces or faces of two similar or dissimilar materials placed in tight contact to form a joint that may collect moisture.

042-1.1 [Orig] Genset – System of systems that creates primary electrical power. In the case of the SPC-HWX II, this includes the diesel engine(s), engine-driven generator(s), and the shafting.

042-1.8 [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 SPC-HWX II, 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 suppression systems and alarms, the stability control systems, and any other equipment that is not considered part of the navigation or communication boundaries.

042-1.9 [Orig] Human Factors Engineering (HFE) – The engineering discipline concerned with applying known information about a human's physical and mental capabilities and limitations to the design of the boat, boat systems, and individual equipment to ensure that they can be efficiently operated and maintained by the boat's crew. Human Factors Engineering (HFE) minimizes the factors that degrade human performance or that increase the chance of error. As applied to the SPC-HWX II, HFE influences the arrangement, construction, and testing of the total platform, systems, and individual equipment to ensure that they can be effectively and safely operated and maintained by the crew and support personnel.

042-1.10 [Orig] Human Systems Integration (HSI) – The discipline of incorporating the human element into the design process to ensure that the hardware design supports humans in executing required functions to meet mission requirements. Also, Human Systems Integration (HSI) helps ensure the crew will be of adequate number and skill to perform expected duties in a safe environment that supports a high quality of life. HSI includes the following disciplines: HFE, Manpower, Personnel, Human Performance Support & Training, Personnel Survivability, Habitability, System Safety, and Occupational Health.

042-1.11 [Orig] Idle Speed – Observed speed of the SPC-HWX II in calm water when the engines are running at the minimum RPM producing forward or astern thrust.

042-1.12 [Orig] Mean Time Between Overhaul (MTBO) – The manufacturer’s recommended number of operating/running hours before the manufacturer’s equipment requires overhaul.

042-1.13 [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 SPC-HWX II, this includes the Scalable Integrated Navigation System

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

042-1.14 [Orig] Open Stowage – A non-watertight enclosure within which stored items may be exposed to the elements.

042-1.15 [Orig] Operate – The ability of the SPC-HWX II to transit and maneuver in the operating environment:

042-1.15.1 [Orig] Without damage to the boat;

042-1.15.2 [Orig] Without harming the crew; and

042-1.15.3 [Orig] Without loss of equipment or system functionality.

042-1.16 [Orig] Self-Righting – Having positive righting arms at all angles of heel (excluding the upright and inverted points of equilibrium).

042-1.17 [Orig] SPC-HWX II and "the boat" – Refers to the U.S. Coast Guard (USCG) Special Purpose Craft – Heavy Weather II (SPC-HWX II), as defined in this Specification.

042-1.18 [Orig] Propulsion System – System of systems that creates the force to move the SPC-HWX II. This includes the exhaust system and exhaust aftertreatment system if provided.

042-1.19 [Orig] Readily Accessible – Capable of being reached quickly, without difficulty, with minimal interference, and without hand tools.

042-1.20 [Orig] Readily Viewable – Viewable without moving objects or components and without requiring awkward twisting or bending.

042-1.21 [Orig] Seam Weld – Longitudinally oriented joint between two plates.

042-1.22 [Orig] Watertightness Degree 1 – Shall be in accordance with ISO 12216 section 3.8.2 Table 2, “Constructed to withstand continuous immersion.”

042-1.23 [Orig] Watertightness Degree 2 – Shall be in accordance with ISO 12216 section 3.8.2 Table 2, “Constructed to prevent ingress of water when tested according to D.2”.

042-1.24 [Orig] Watertightness Degree 3 – Shall be in accordance with ISO 12216 section 3.8.2 Table 2, “Constructed to minimize seepage when tested according to D.2.2.1”.

042-1.25 [Orig] Watertight Enclosure – An enclosure that meets the IP 67 requirements of IEC standard 60529.

042-1.26 [Orig] Watertight Stowage – Stowage space that prevents stowed items from becoming wet.

042-1.27 [Orig] Working Deck – Exterior decks including the aft deck, side decks, foredeck, open bridge deck, and recovery well decks.

042-2 [Orig] Referenced Documents

042-2.1 [Orig] Where USCG drawings are referenced, the drawings are guidance.

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044 [ORIG] CONCEPT OF OPERATIONS

044-1 [Orig] General

044-1.1 [Orig] Intent of the SPC-HWX II’s concept of operations is to inform and to provide context for the Contractor on the USCG’s use of the boat.

044-1.2 [Orig] The primary mission of the SPC-HWX II is Search and Rescue (SAR), particularly in extreme sea conditions. It also serves as a multi-mission asset to conduct a wide range of other missions including: Marine Safety;

Law Enforcement (LE); Ports, Waterways, and Coastal Security (PWCS);

and Marine Environmental Protection (MEP).

044-2 [Orig] Search and Rescue (SAR)

044-2.1 [Orig] The SPC-HWX II will be deployed to Coast Guard stations in the Pacific Northwest to allow the Coast Guard to respond to Search and Rescue (SAR) missions in conditions that exceed the capabilities of the 47-foot Motor Lifeboat (47 MLB), particularly regarding surf and sea heights, towing capability, range, and endurance. SAR missions are not planned and can occur at any time of year day or night. However, the predominate need for the SPC-HWX II capability is during the late fall to early spring seasons when the likelihood of severe sea and wind conditions is the greatest. These conditions also put fishing and other vessels that operate offshore at the greatest risk, increasing the chances that SAR will be required.

044-2.2 [Orig] Once the decision is made to deploy an SPC-HWX II, the Station personnel respond as quickly as possible to get underway. The crews are highly trained and the boats are kept in a ready status, allowing for a rapid response.

044-2.3 [Orig] Throughout a SAR mission, the SPC-HWX II crew will maintain communications with the Sector. Communications are typically by VHF radio when close to shore. The crew will then transition to HF radio or satellite communications as they get out of VHF range. UHF communications may be used when working with other government agencies.

044-2.4 [Orig] In heavy weather, the transit to the vessel in distress can be extremely dangerous. It typically starts by crossing a breaking bar, where the helmsman must carefully negotiate each breaking wave to safely make it to open waters without capsizing. A back-up 47 MLB is normally deployed for assistance if an SPC-HWX II capsizes or suffers a mechanical failure.

Once offshore, the helmsman must constantly adjust speed and direction to avoid crashing the SPC-HWX II down on the back side of a wave, while maintaining the highest possible speed.

044-2.5 [Orig] A number of actions can happen once on the scene, including transferring crews and equipment (including a dewatering pump) to and from the vessel in distress, recovering people and equipment from the water, and towing a vessel back to port. All these actions are challenging in extreme seas and winds. If rapid medical attention is required, the SPC-HWX II can serve as a platform for transferring personnel to a helicopter. In rare

0-5 instances, the SPC-HWX II can also be used to suppress fires to allow for personnel recovery.

044-2.6 [Orig] Transfers of Personnel and Equipment – The SPC-HWX II will transfer crewmembers, other personnel, and equipment to and from another vessel to help provide damage control or medical assistance. Typical transfers include providing a crewmember for onboard assistance, providing the Coast Guard a P-6 dewatering pump, or moving an injured person in a Stokes litter. Transfers will normally be conducted directly by coming alongside the other vessel or, when necessary, equipment will be transferred via water using tending lines. In the case of a water transfer, a line is attached to the piece of equipment (typically a dewatering pump in a watertight container) and the line is passed to the disabled vessel. The equipment is then lowered into the water, in some cases using a davit, and hauled to the other vessel. An additional line will lead back to the SPC-HWX II to help guide and recover the piece of equipment. A similar method is also occasionally employed for passing a salvage pump down the towline to another vessel.

044-2.7 [Orig] Recovery from the Water – The SPC-HWX II will retrieve people (able-bodied, unconscious, or deceased) or material from the water. Typical operations involve the SPC-HWX II maneuvering into the prevailing wind or creating a lee where the rescue is to take place at the recovery wells. No more than two crewmembers will be available to conduct the recovery operations. A davit may be used to recover heavier people or objects or to move them from the recovery well to the aft deck once recovered. In the case of a man overboard where one or more Coast Guard crew ends up in the water, it is important that they be able to get themselves back onboard unassisted.

044-2.8 [Orig] Towing – The SPC-HWX II will tow disabled vessels astern and alongside.

044-2.8.1 [Orig] Tows will typically be conducted astern until the SPC-HWX II reaches restricted waters or is maneuvering into a slip or alongside a dock. Aft tows can be connected directly to the end of the towline or by using a bridle or pendant when the vessel being towed is not suitable for an easy towline connection. The towing line is passed to the disabled vessel by first passing a heaving line and then using the heaving line to pull the towline to the disabled vessel. Good communication between crew and helmsman during the towing operation is critical to success, particularly when high winds and seas are present. Retrieving or shortening the towline will be done using a capstan to bring the slack towline to the aft deck and then a powered towline reel to stow the line.

044-2.8.2 [Orig] Once in the harbor, the SPC-HWX II will typically transition the incapacitated vessel to a side tow to allow for improved control when mooring. In these situations, the bow thruster may be used.

044-2.9 [Orig] Helicopter Operations – The SPC-HWX II crew will be transferring people and equipment to and from Coast Guard helicopters. Personnel transfers are done using a rescue device (a rescue strop, a rescue basket, or a Stokes litter). Equipment transfers are similar except the equipment may be directly connected to the hoist cable. Typical operations will require

0-6 the SPC-HWX II to maintain a steady course, with the wind off of the port bow, while the helicopter is maneuvered off of the port stern quarter.

Transfers are either done directly or using a trail line. The helicopter trail line is a light line with a 5-pound weighted bag on the end that is lowered to the boat. The other end is attached to the rescue device via a weak link. The SPC-HWX II crewmember will be required to retrieve the trail line and use it to guide the rescue device to the deck. To discharge the static electricity that may build up in the helicopter and rescue device, the rescue device is grounded using a grounding wand or by having the device touch the water or hull. Once the rescue device is loaded, the crewmembers help to guide it off the deck and tend to the trail line (if used) until it is clear of the boat. It is imperative that items that might snag the hoist cable or trail line are minimized.

044-2.10 [Orig] Medical Assistance – The SPC-HWX II needs sufficient space to provide medical assistance to rescued persons. First aid is typically provided at the First Responder level; however, more advanced first aid may be conducted depending on the capabilities of the rescue personnel.

044-2.11 [Orig] Fire Fighting and Rescue Assistance – The SPC-HWX II’s role in fighting fires on other vessels is to save lives, not property, and to protect the SPC-HWX II in a hazardous environment. In this role, the SPC-HWX II will come alongside another vessel to retrieve persons in danger. Limited fire suppression may be provided using portable fire extinguishers or by rigging the dewatering pump with a fire hose and nozzle to provide a protective spray of water.

044-3 [Orig] Marine Safety

044-3.1 [Orig] The SPC-HWX II must be capable of conducting Marine Safety missions. Typical tasks include patrolling to monitor boating safety and conducting boardings to inspect vessels for compliance with federal laws and regulations.

044-4 [Orig] Law Enforcement (LE)

044-4.1 [Orig] The SPC-HWX II will conduct Law Enforcement (LE) missions.

Missions include protecting living marine resources (fisheries), preventing illegal drug trafficking, interdicting undocumented migrants at sea, and enforcing a wide range of federal laws and treaties. In performing these missions, the SPC-HWX II will conduct patrols; monitor illegal activity; come alongside other vessels for boardings; interdict potentially hostile vessels;

detain suspects or migrants onboard for transport to shore or to another vessel; and recover undocumented migrants or contraband from the sea.

Electronic communication with other Coast Guard and law enforcement assets, as well as the vessels under investigation, is vital to the mission. In addition, the SPC-HWX II needs an effective projection of force to compel compliance with laws and treaties, to deter illegal activity, and to disable hostile or evasive targets. This projection of force may be provided by hand-held small arms as well as a mounted light machine gun. During these operations, the crewmembers on deck must be able to maintain communication with the helmsman.

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044-5 [Orig] Ports, Waterways, and Coastal Security (PWCS)

044-5.1 [Orig] The SPC-HWX II will conduct Ports, Waterways, and Coastal Security (PWCS) missions. The PWCS missions primarily involve maintaining the safety of ports through preventing accidental damage to vessels and port facilities and preventing the intentional destruction, loss, or damage to port assets and vessels as a result of terrorism or sabotage. In conducting these missions, the SPC-HWX II will conduct routine patrols, enforce security zones including escorting other vessels, come alongside other vessels including large ships for boardings, monitor illegal activity, detain suspects, and interdict potentially hostile vessels. Similar to the LE mission, the ability to communicate with other assets and to project effective force are vital to the PWCS mission.

044-6 [Orig] Marine Environmental Protection (MEP)

044-6.1 [Orig] The SPC-HWX II will support Marine Environmental Protection (MEP) missions. In many cases, the SPC-HWX II may provide the first line of defense in the MEP program by being the first to respond to a reported incident and coordinating the subsequent actions. The SPC-HWX II may be tasked with conducting routine MEP patrols, towing oil containment booms, and transferring specialized personnel and equipment to the incident scene.

Transfers are typically conducted in manners similar to those used in a SAR mission. The SPC-HWX II may also be the on-scene command vessel coordinating the actions of others or be required to enforce safety zones around an environmental incident.

044-7 [Orig] Other Missions

044-7.1 [Orig] As a multi-mission capable asset, the SPC-HWX II may be required to conduct a wide range of other missions. These may include transporting specialized aids-to-navigation teams to verify aid locations, transferring specialized personnel to other vessels and structures, and serving as a platform for public relations activities.

044-8 [Orig] SPC-HWX II Primary Crew

044-8.1 [Orig] The SPC-HWX II will operate with a minimum complement of four qualified crew members: a coxswain, an engineer, and two crewmembers.

Additional crewmembers may be onboard for training to supplement crews for special missions and to provide relief (relief crew) to the primary crew for long duration missions.

044-8.2 [Orig] The coxswain is the person responsible for the primary operation of the SPC-HWX II. The coxswain’s duties include steering, propulsion controls, course keeping, and overall command of the SPC-HWX II. While the coxswain may be the one who drives the SPC-HWX II, the coxswain may also delegate this duty to one of the other crewmembers. The Statement of Work and Specification will refer to the person driving the SPC-HWX II as the helmsman.

044-8.3 [Orig] The engineer is the person responsible for monitoring the condition of the propulsion and auxiliary machinery. The engineer makes routine inspections of machinery spaces while the boat is underway.

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044-8.4 [Orig] The two additional crewmembers will assist the coxswain in safe navigation, in operating the radios and electronic navigation equipment, and in conducting all mission related activities.

044-9 [Orig] SPC-HWX II Relief Crew

044-9.1 [Orig] Missions lasting longer than 10 hours in calm seas and 6 hours in extreme seas require special consideration for crew fatigue. For this reason, the SPC-HWX II shall have the capacity to accommodate relief crew crewmembers.

044-9.2 [Orig] The primary crew coxswain will be responsible for determining the crew rotations and assigning responsibilities.

044-9.3 [Orig] The off-duty crew will attempt to rest. In severe conditions, this will happen in shock mitigating seats. When conditions are less severe, such as during low-speed towing operations, the crew may rest in berths.

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051 [ORIG] SPC-HWX II SYSTEM REQUIREMENTS

051-1 [Orig] Speed and Range

051-1.1 [Orig] The SPC-HWX II shall be capable of operating and attaining the following speeds in the performance weight condition:

051-1.1.1 [Orig] Full Speed: 20 knots in calm condition.

051-1.1.2 [Orig] Cruise Speed: 16 knots in calm condition.

051-1.2 [Orig] The SPC-HWX II shall be capable of operating continuously at speeds of 5 knots or less for towing and idling operations.

051-1.3 [Orig] The SPC-HWX II shall be capable of transiting at least 500 nautical miles (NM) at cruising speed in calm condition starting at the performance weight condition. At the end of the transit, the SPC-HWX II shall have a 10 percent fuel reserve.

051-2 [Orig] Operating Environment

051-2.1 [Orig] The SPC-HWX II shall be capable of safely and effectively operating under the following conditions at any hour of the day or night:

051-2.1.1 [Orig] Heavy weather – Seas up to 35 feet and wind speeds up to 60 knots.

051-2.1.2 [Orig] Surf – Breaking waves up to 25 feet and wind speeds up to 60 knots.

051-2.2 [Orig] Reduced visibility – The SPC-HWX II shall be capable of operating in fog, snow, or heavy rain.

051-2.3 [Orig] Water temperatures – The SPC-HWX II shall be capable of operating continuously in water temperatures ranging from 28 to 85°F.

051-2.4 [Orig] Air temperatures – The SPC-HWX II shall be capable of being stored pier-side or operated continuously in air temperatures ranging from 0 to 95°F (dry bulb), 0 – 82°F (wet bulb). The boat shall not require any special procedures to prevent freezing of water system or damage to other components prior to being pier-side after operation in sub-freezing conditions.

051-3 [Orig] Mission Profiles

051-3.1 [Orig] Individual sorties may have considerably different percentages depending on the mission conducted. The SPC-HWX II mission profile is an average breakdown and shall be used to establish the propulsion system duty rating.

[Orig] Table 051-1: Mission Profile

Percentage of Mission Speed Condition

15% Towing

25% Idle Speed

45% Cruise Speed

15% Top Speed

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051-4 [Orig] Maneuvering

051-4.1 [Orig] The SPC-HWX II shall be dynamically stable in all loading conditions and speeds. It shall not exhibit any oscillatory or non-oscillatory instabilities such as porpoising, chine walking, high speed rolling, tripping, or bow steering.

051-4.2 [Orig] The SPC-HWX II shall be safe and controllable in the operating environment.

051-4.3 [Orig] The SPC-HWX II shall maintain a steady turn rate without skidding, sliding, or tripping. The inboard heel shall be maintained throughout turns in calm condition and at speeds of more than 12 knots. In exiting a turn, the boat shall respond to the steering command without the need for excessive force.

051-4.4 [Orig] The SPC-HWX II shall operate and perform unique USCG operating maneuverers without damage to equipment or stalling of any propulsion system:

051-4.4.1 [Orig] Heavy Weather Turns: The SPC-HWX II shall be capable of conducting a heavy weather turn at any speed. This is accomplished by placing a propulsion system in full reverse with the other in full ahead followed by a full helm deflection.

051-4.4.2 [Orig] Station Keeping in Breaking Surf: The SPC-HWX II shall be capable of rapidly shifting from forward to reverse in order to maintain station in the optimal position on the waves.

051-4.4.3 [Orig] Crash Stop: The SPC-HWX II shall be capable of conducting crash stops at any speed where the coxswain rapidly shifts propulsion from full ahead to full astern.

051-4.5 [Orig] The SPC-HWX II shall be provided with a means to adjust trim angle and heel angle when operated at or above cruising speed.

051-5 [Orig] Motion and Acceleration Limits

051-5.1 [Orig] Foundations and supports, equipment, machinery, and outfit shall be operable in and not be damaged by motions and accelerations resulting from operation in all sea states and operating speeds.

051-5.2 [Orig] Unless otherwise stated, the foundations and supports, equipment, machinery, and outfit shall be designed to sustain the following motions and accelerations without mechanical or structural failure, to include maintaining satisfactory lubrication and minimizing loss of fluids from machinery.

051-5.2.1 [Orig] Motions

051-5.2.1.1 [Orig] Roll: 360 degrees

051-5.2.1.2 [Orig] Pitch: 360 degrees

051-5.2.1.3 [Orig] Rollover duration: 30 seconds

051-5.2.2 [Orig] Accelerations (steady state)

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051-5.2.2.1 [Orig] Maximum vertical – 6G at the bow, 4G midship, and aft.

Locations between the bow and midship shall use a linear interpolation (unless otherwise stated).

051-5.2.2.2 [Orig] Maximum lateral and longitudinal – 4G (unless otherwise stated).

051-6 [Orig] Towing

051-6.1 [Orig] The SPC-HWX II shall be capable of towing a variety of vessels both astern and alongside.

051-6.2 [Orig] The SPC-HWX II shall be capable of being towed by another vessel.

051-6.3 [Orig] Tows require the SPC-HWX II to have appropriately sized fittings to secure the tow forward, alongside, and aft.

051-6.4 [Orig] The SPC-HWX II shall produce a bollard pull (at zero boat speed) of 18,000 pounds or greater.

051-7 [Orig] Damage Control and Survivability

051-7.1 [Orig] As a multi-mission USCG asset with an emphasis on surf and heavy weather operations, the SPC-HWX II shall be capable of performing in a wide range of conditions. While every effort will be made to ensure that the SPC-HWX II operates within its designated operational limits, there will be times when the SPC-HWX II will be forced outside these limits due to the unpredictability of weather, sea conditions, the hostile intent of others, system or component failures, or human error. It is imperative that the SPC- HWX II maintains the level of survivability to ensure the safety of the crew.

The following aspects of survivability shall be considered in the final design and development of the SPC-HWX II.

051-7.2 [Orig] Flooding and damage control – The SPC-HWX II shall have survival systems including an alarm system to sense flooding and alerting the crew, a bilge system to remove water, and sufficient access to make temporary repairs to the hull or system. Flooding may be caused by component failure, hull damage, or hostile fire.

051-7.3 [Orig] Fire – The SPC-HWX II shall have the capability to detect and suppress onboard fires.

051-8 [Orig] Service Life and Annual Hours of Operation

051-8.1 [Orig] The SPC-HWX II shall be designed to operate at a planned 600 hours per year.

051-8.2 [Orig] The SPC-HWX II hull shall be designed for a minimum service life of 25 years.

051-9 [Orig] Parent Craft Requirements

051-9.1 [Orig] The SPC-HWX II shall be based on a parent craft with a mature, proven design. The design in terms of the hull-form shall be directly traceable to one boat of the same design or same family of designs with a minimum of 2 years of service and be between 40 and 85 feet in overall

0-12 length. A parent craft design may be modified in material, arrangements, or dimensions to satisfy the requirements of this Specification.

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070 [ORIG] GENERAL REQUIREMENT FOR DESIGN AND CONSTRUCTION

070-1 [Orig] General

070-1.1 [Orig] The Contractor shall construct the SPC-HWX II in accordance with the approved configuration baselines and in compliance with the contract requirements. The configuration of all SPC-HWX IIs shall be identical with the exception of the changes approved by the USCG.

070-1.2 [Orig] All equipment, machinery, and materials shall be suitable for extended exposed stowage and reliable operation in the marine environment.

070-1.3 [Orig] The Contractor shall comply with all Original Equipment Manufacturers (OEM) installation instructions and recommendation of components unless there is a conflict with the SPC-HWX II contract requirements, in which case the USCG will adjudicate the conflict.

070-1.4 [Orig] Unless otherwise provided for in the contract requirements, all supplies, including material, components, outfit, and machinery installed in the SPC-HWX II, shall be composed of previously unused components and procured specifically for the SPC-HWX II.

070-2 [Orig] Physical Constraints

070-2.1 [Orig] The SPC-HWX II shall meet the following principal characteristics:

070-2.1.1 [Orig] Length (overall) – Not to exceed 64 feet. Overall length is measured from the forward-most extremity to the aft-most extremity, including fixed fendering.

070-2.1.2 [Orig] Beam (overall) – Not to exceed 22 feet. Overall beam is measured from the outer-most extremities including fixed fendering.

070-2.1.3 [Orig] Draft – Not to exceed 7 feet. Draft is measured from the bottom-most extremity including propeller(s), appendages, and hull in the full load condition.

070-3 [Orig] General Arrangements

070-3.1 [Orig] The general arrangement of the SPC-HWX II shall allow for performance of the intended missions as described in Concept of Operations.

070-3.2 [Orig] Specification Section 070 intends to describe the major features required in the SPC-HWX II in general terms for each area of the boat.

Specific information on components, systems, and equipment is provided in other sections of the Specification.

070-4 [Orig] Exterior Decks

070-4.1 [Orig] General: The SPC-HWX II shall have sufficient deck space to conduct missions, including transferring personnel to other vessels during boarding operations, helicopter recovery of a Stokes litter, law enforcement and defense operations, transferring portable mission equipment such as the P-6 salvage pump, and handling persons recovered from the water. Deck space

0-14 shall be sufficient to allow easy passage around the SPC-HWX II, including passage alongside the deckhouse when alongside a ship or bulkhead, and passage while carrying the Stokes litter or P-6 pump.

070-4.2 [Orig] Foredeck: The primary features of the foredeck shall include:

arrangements to conduct alongside boarding operations; the ability to stow, rapidly deploy, and retrieve an anchor; a prominent bitt and forward “bullnose” chock to allow the SPC-HWX II to be safely towed by another vessel; a mount for an automatic weapon; and stowage lockers incorporated into the forward portion of the deckhouse structure for portable fenders, mooring lines, and other outfit.

070-4.3 [Orig] Side Decks and Recovery Wells: The SPC-HWX II shall have port and starboard recovery wells that provide the crew with the capability to reach down into the water and retrieve a person or object with no more than two crew required for the retrieval operation.

070-4.3.1 [Orig] Stairs, a stair ladder, or a ladder shall be provided at the aft end of the recovery wells to access to and from the aft portions of the side and working deck. Stairs, a stair ladder, or a ladder shall be provided at the forward end of the recovery well to access the forward side decks and foredeck. Outboard handrails are not required for the recovery wells’ stairs, stair ladder, or ladder.

070-4.3.2 [Orig] Hinged gratings shall be provided to cover the recovery wells when not in use to allow the crew to move rapidly around the perimeter of the SPC-HWX II.

070-4.3.3 [Orig] Davit(s) shall be provided on the side deck adjacent to the recovery wells to assist in the recovery of incapacitated person(s) and the deployment and recovery of the P-6 dewatering pumps. Davit(s) shall be located so the load can be transferred from the water at the recovery well to working deck level aft of the recovery well.

070-4.4 [Orig] Aft Deck: The aft deck shall be configured for efficient operations.

Primary among these operations are towing, helicopter operations, and dewatering and fire suppression using the portable pump. The aft deck also provides a gathering place for boarding operations.

070-4.4.1 [Orig] Stowage lockers shall be provided on the aft deck for mooring and towing equipment including mooring lines, portable fenders, and towing bridles.

070-4.4.2 [Orig] Potable/Freshwater shower head/hose.

070-4.4.3 [Orig] Towing Arrangements: The aft deck shall be configured with a prominent tow bitt, a towline capstan, two powered towline reels, and a taffrail.

070-4.4.3.1 [Orig] The tow bitt shall be located so a single crew member can work the towline while forward of the bitt. The crew member will then be out of the sweep of the towline when it is under tension.

070-4.4.3.2 [Orig] The tow bitt shall be located at least 10% of the length overall forward of the rudder stocks.

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070-4.4.3.3 [Orig] The capstan shall be arranged to facilitate retrieval of towlines when shortening the tow or when a tow is complete.

070-4.4.3.4 [Orig] The towline reels shall be located forward of the tow bitt.

070-4.4.3.5 [Orig] The taffrail shall allow the towline to lead from the tow bitt over the stern and sides of the SPC-HWX II when connected to another vessel. The forward ends of the taffrail shall have a “horn” or other means to keep the line from going forward of the taffrail.

070-4.4.4 [Orig] Dewatering and Fire Suppression: The aft deck shall be provided with secure, readily accessible stowage for two Coast Guard P-6 pumps and the associated gear.

070-5 [Orig] Open Bridge

070-5.1 [Orig] General: The Open Bridge will be used as the primary boat operating location when operating in the surf, setting up tows of other vessels, conducting the recovery of persons or objects from the water, conducting boarding operations, and when coming alongside other vessels or structures.

070-5.1.1 [Orig] Seating: At least five forward-facing shock-mitigating seats shall be provided. At least one of the aft seats shall be capable of rotating to face aft, or a sixth aft-facing shock mitigating seat shall be provided to allow one crew member to monitor vessels under tow.

070-5.1.2 [Orig] Primary Helm: The primary Open Bridge helm shall be on the starboard forward side of the Open Bridge with visibility of the starboard recovery well when looking over the handrails.

070-5.1.3 [Orig] Secondary Helm: The secondary Open Bridge helm shall be on the port forward side of the open bridge with visibility of the port recovery well when looking over the handrails. When not being used as a helm position, the position will primarily be used by the engineer.

070-5.1.4 [Orig] Windscreen: The open bridge consoles and helm positions shall be protected by a windscreen designed to deflect wind, spray, and green water during operations.

070-5.1.5 [Orig] Access: Direct access to the open bridge shall be provided from the aft deck and from the enclosed bridge.

070-6 [Orig] Enclosed Bridge

070-6.1 [Orig] General: The Enclosed Bridge will be used as the primary boat operating location when conducting longer transits.

070-6.1.1 [Orig] Seating: At least four forward-facing shock-mitigating seats shall be provided.

070-6.1.2 [Orig] Primary Helm: The primary Enclosed Bridge helm shall be on the starboard forward side of the Enclosed Bridge.

070-6.1.3 [Orig] Secondary Helm: The secondary Enclosed Bridge helm shall be on the port forward side of the Enclosed Bridge. When not being used as a helm position, the position will primarily be used by the navigator.

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070-6.1.4 [Orig] Navigation Station: A console or table shall be provided for the navigator that allows for working charts or doing paperwork.

070-6.1.5 [Orig] Windows: The Enclosed Bridge windows and arrangement shall maximize lines of sight to enable the helmsman and crew to operate the SPC-HWX II from the enclosed bridge.

070-6.1.6 [Orig] Access: Direct access to the Enclosed Bridge shall be provided from the Open Bridge. Access shall also be provided from the Enclosed Bridge to the aft deck and below-deck spaces.

070-7 [Orig] Relief Crew Seating

070-7.1 [Orig] General: An additional four shock-mitigating seats shall be provided for the relief crew located in an interior compartment. These may be in the Enclosed Bridge or in a separate compartment.

070-7.2 [Orig] Windows: The compartment containing Relief Crew Seating shall have windows to port and starboard for situational and motion awareness with seated crew visibility to the horizon.

070-8 [Orig] Medical Assistance Area

070-8.1 [Orig] General: A designated Medical Assistance Area shall be provided in an interior compartment.

070-8.2 [Orig] Sufficient deck space shall be provided for a Stokes litter to allow treatment of a survivor while underway.

070-8.3 [Orig] Tie down points shall be provided to secure the litter.

070-8.4 [Orig] Stowage space shall be provided for medical supplies in the same compartment as the Medical Assistance Area.

070-9 [Orig] Mast and Mast Platform

070-9.1 [Orig] The SPC-HWX II shall have a mast and/or mast platform for the navigation lights, radio, and radar antennas. A mast platform may be buoyant and used to contribute to self-righting.

070-9.2 [Orig] Access: Access shall be provided for maintenance and repair with dedicated steps and harness attachment points.

070-10 [Orig] Habitability

070-10.1 [Orig] The SPC-HWX II shall have interior spaces to accommodate basic food storage and preparation, rest for off-duty crew, and seating for survivors or passengers.

070-10.1.1 [Orig] Galley: A galley area shall be provided for food storage and preparation. The galley shall include a sink, microwave, hot water, refrigerated storage, storage for food and supplies, and an area for retention of trash.

070-10.1.2 [Orig] Berth: Berths shall be provided for four crew members.

070-10.1.3 [Orig] Seating: Seating with restraints shall be provided for five passengers/survivors.

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070-11 [Orig] Head and Shower

070-11.1 [Orig] A head compartment shall be provided that includes a toilet and hand washing facilities.

070-11.2 [Orig] A shower compartment with showerhead and drainage shall be provided.

070-11.3 [Orig] The head and shower compartments and washing facilities may be combined.

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071 [ORIG] ACCESS

071-1 [Orig] General

071-1.1 [Orig] The design and arrangement of the SPC-HWX II shall, under all operational conditions, provide for safe and convenient access to all boat spaces, and for safe and convenient service, maintenance, and operation of all controls, systems, machinery, and components.

071-1.1.1 [Orig] All internal spaces that are not void(s), tank(s), or storage/stowage spaces shall have at least two means of egress.

Primary and secondary egress routes from spaces with fire suppression systems shall be equipped with access that open outward to allow emergency egress.

071-1.1.2 [Orig] Ingress and egress of all internal spaces shall be free of trip or snag hazards that may impede the safe evacuation of the space.

071-1.1.3 [Orig] The working deck area used to traverse the boat forward and aft on both sides of the deckhouse shall have a width of at least 32 inches on each side.

071-1.1.4 [Orig] Seats that are arranged side-by-side shall have a minimum of 3 inches clearance between the outermost part of each seat.

071-1.2 [Orig] The SPC-HWX II shall have access to support routine maintenance and inspections.

071-1.2.1 [Orig] Access to compartments containing equipment, machinery, or spare parts shall be provided to facilitate their maintenance and removal with hand tools and…