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Government Responses to Industry Questions Amendment 00002 July 9, 2021
*Note: Highlighted cells denote new or updated responses from Amendment 00001.
| ID# |
| Section |
| Clause |
| Industry Question/Comment |
| Government Response |
| 1 |
| L |
| L.10.(e) |
| The Final RFP combines Factors 1, 2, and 3 into a single Volume I. RFP Section L.10.(e) states that all volumes shall include the front matter such as Cover Page, Title Page, List of Illustrations, Tables and Glossary. RFP Sections L.11 and L.12, pages 9 and 16 indicate the front matter is required for each Factor. Would it be permissible to include only one "master" front matter for Volume I? |
| Yes. One master front matter for Volume I is acceptable. |
| 2 |
| L |
| L.14.(b) |
| Past Performance Narratives - Considering the amount of information required for the narratives and the space for a 3x5 image, would the government consider increasing the page allocation from 2 pages to 5 for each Past Performance Narrative? |
| No, the Government appreciates the question and suggestion however will not be extending the page count at this time. |
| 3 |
| L |
| L.7(5) |
| For purposes of the bid, can the offeror provide a single drawing for drawings that are common to both vessels with notation that it is common to both vessels? Can a single drawings with shared elements (such as a GA with common aft arrangements be supplied with notations as to differences)? |
| Yes. As part of the proposal, a single drawing may be submitted with appropriate annotation only if the drawing is identical for both variants. |
| 4 |
| J-1 |
| 551.3.12.1 |
| Does the River Buoy Tender Variant require a jetting station as well? If not, is the large fire pump size suitable for jetting needed for the River Buoy Tender Variant as well? If not, are the compressors for the River Buoy Tender able to be smaller? (no air starting of engines is required) |
| Yes. The River Buoy Tender variant requires a jetting connection. The WCC System Specification (Attachment J-1) Section 521.6.13 is revised to delete "(Construction Variant)" and will state, "Jetting Station. A dual purpose fire station shall be installed forward of the crane pedestal to serve as a forward firefighting hose station as well as a jetting connection." |
| 5 |
| J-1 |
| 400 |
| Is any GMDSS equipment such as Navtex, or SART required? |
| No. GMDSS equipment is not required. |
| 6 |
| J-1 |
| 622.3.2.12.1 |
| If the deckhouse is aluminum, can the exterior vertical ladders attached to the deckhouse be aluminum as well? |
| Yes. The WCC System Specification (Attachment J-1), Section 622.3.2.12.1 is deleted. |
| 7 |
| J-1 |
| 633.2.2.1.1 |
| 633.2.2.1.1 [Anode] Placement shall be such to minimize damage from impact and not affect the cutter’s overall draft.” “070.3.5.1.7 The hull draft at midship, inclusive of appendages but exclusive of anodes”. These requirements appear to be in conflict with each other. |
| The WCC System Specification (Attachment J-1) Section 633.2.2.1.1 is revised to delete "and not affect the cutter’s overall draft" and will state "Placement shall be such to minimize damage from impact." |
| 8 |
| J-1 |
| 580.11.4 |
| Our vessel design has a maximum bollard pull of about 37,000 lbs in the ahead direction and significantly less sideways and astern. Could the capstan static load be rated more appropriately to the maximum force the vessel can generate, say ~40,000 lbs? (This would be the SWL for the capstan and supporting structure. Actual load applied during design analysis is 2x SWL. |
| The USCG has clarified that the requirement is structural regarding the capstan and its foundation, but will not reduce the strength requirement. WCC System Specification (Attachment J-1) Section 580.11.4 is revised to state "The capstan and foundation shall be capable of withstanding a static (bollard) pull not less than 100,000 lbs." |
| ID# |
| Section |
| Clause |
| Industry Question/Comment |
| Government Response |
| 9 |
| J-1 |
| 589.2.2 |
| Could a box beam type boom crane be proposed? Production lattice beams are generally considerably larger and may not be able to fulfill the proven similar operational experience requirement. Many existing USCG cutters do have box boom cranes for these type of buoy operations. Solid box beam cranes may also be more tolerant of off-axis loading than lattice boom crane. |
| No, a box beam type boom crane will not be considered acceptable for the Construction Variant. The USCG appreciates the question and suggestion however will not be making a change at this time. |
| 10 |
| J-1 |
| 582.4.3 |
| No closed chocks seem to be shown on the working deck drawings |
| The working deck drawings, Attachments J-1B & J-1C, has been revised to reflect the location of the horned chocks required by WCC System Specification (Attachment J-1), Section 582.4.3 and will be provided. |
| 11 |
| J-1 |
| 589.2.14 |
| We assume that if a central hydraulic system has failed, deck winches will not be available for moving a crane boom, and crane’s own hydraulic motors and cylinders may not be available due to failure of a hose, cylinder or other hydraulic system. Is a secondary source of hydraulic power suitable? Can bidders assume there are no failures of crane cylinders or slewing motors and the loss of hydraulics/power is only the central hydraulic power unit itself? Is a hand pump or accumulator a suitable source of power to secure the crane? |
| A secondary source of hydraulic power is acceptable to secure the crane in stowed position. A hand pump or an accumulator is an acceptable source of power. Offerors should consider a single point of failure of any component on the crane in addition to the loss of hydraulics/power for the central hydraulic power unit. WCC System Specification (Attachment J-1) Sections 589.2.14 and 589.3.8 are revised to clarify the requirements as follows: |
589.2.14 The crane shall be capable of being returned in the stowed position when there is a single point of failure due to loss of electrical or hydraulic power or a component on the crane.
589.2.14.1 Any deck equipment used to return the crane in the stowed position shall ensure the forces do not exceed the equipment rating.
589.3.8 The crane shall be capable of being returned in the stowed position when there is a single point of failure due to loss of electrical or hydraulic power or a component on the crane.
589.3.8.1 Any deck equipment used to return the crane in the stowed position shall ensure the forces do not exceed the equipment rating.
| 12 |
| J-1 |
| 580.10.1 |
| TANDEMLOC AJ12A00-DS110” tie downs” are very large (~12” diameter cup) and have a 66,000 vertical load rating. Considering the weight of typical deck cargo to be restrained, and limited motions for this sort of vessel (only rated for small waves) perhaps a smaller fitting should be considered. |
| This specific fitting is standard in the fleet for ATON cutters and must be used. The WCC System Specification (Attachment J-1), Section 580.10.3 is updated to state, "Tie-down fittings shall be fabricated and installed in accordance with USCG Drawing FL-573-001. The support structure for each fitting shall be sufficient to achieve a minimum SWL of 6,000 lbs." |
| ID# |
| Section |
| Clause |
| Industry Question/Comment |
| Government Response |
| 13 |
| J-1 |
| 580.10.1 |
| “The deck fittings shall be arranged in a grid pattern spaced 40 inches to 56 inches …Tie downs shall be located on deck stiffeners and/or transverse frames.” |
This tiedown spacing (inadvertently) forces the Proponent to a structural arrangement defined by this grid spacing. e.g. long’l stiffeners at 24” spacing, stiffeners would have be to modified from 2 stiffeners @ 24” = 48” spacing to suit the tie downs. Unless there are strong reasons to impose this particular grid size, perhaps the approximate number of tiedowns should be specified for the working deck area, and the proponent should adjust the spacing in a reasonable rectangular grid to suit their structural arrangement?
The USCG concurs. The last sentence of WCC System Specification (Attachment J-1) Section 580.10.1 is updated to state "Tie downs shall be located on deck stiffeners and/or transverse frames or shall be backed up by local headers between stiffeners if located off primary deck structure."
| 14 |
| J-1 |
| 100.2.4 |
| Please confirm if pipes used for structural pillars/foundations need to be AH 36 steel or can be typical pipe specifications such as ASTM A106 or similar |
| The USCG confirms that structural pipes and tubes may be of a material other than AH36 steel as allowed by WCC System Specification (Attachment J-1) Section 078 and ABS. See response to Question ID# 15 for further clarification of Section 100.2.4. |
| 15 |
| J-1 |
| 100.2.4 |
| Please confirm if AH 36 is to be used for internal structure as well as shell plate. |
| The USCG confirms. WCC System Specification (Attachment J-1) Section 100.2.4 will be revised to state, "The material for hull and the deckhouse (if steel), shall be higher strength steel of ABS Grade AH 36 or better. Such structure shall include shell, deck, and side plating, longitudinal and transverse stiffeners, girders, keels and keelsons, bulkheads, and transverse frames." |
| 16 |
| J-1 |
| 079.2 |
| The NAVSEA icing condition (T9070-AF-DPC-010/079-1, Chapter 6), is not typical of mostly inland river vessels, and more suited for ships operating in winter in the North Pacific or North Atlantic. We expect that the icing as defined by the standard has not been a concern with the current fleet. The icing load is required to be added very far forward, because a warship type superstructure is envisioned, and this produces an adverse trim far exceeding the zero” bow down trim limits. Can consideration be given to (a) eliminating the ice loading condition (b) reducing the amount of icing likely to be present (c) allowing a relaxation of trim limits due to icing? Currently we find this standard impossible to satisfy. |
| The trim limits in WCC System Specification (Attachment J-1), Section 070 are not required to be met with icing. |
| 17 |
| J-1 |
| 243.2.1 |
| Instead of a cardan shaft, could a straight line floating shaft with flexible elements be used instead? Such a configuration would reduce maintenance requirements (no bearings) and weight. |
| No. A cardan shaft is required per WCC System Specification (Attachment J-1) Section 243.2.1 and will remain unchanged. |
| ID# |
| Section |
| Clause |
| Industry Question/Comment |
| Government Response |
| 18 |
| J-1 |
| 076.3 |
| What are the “Other Heavy Lift Systems”? |
| "Other Heavy Lift Systems" is for the working deck machinery (e.g. winches for each variant). WCC System Specification (Attachment J-1), Table 076.3-1 is revised to change "Other Heavy Lift Systems" to "Working Deck Machinery." |
| 19 |
| J-1 |
| 506.2.10 |
| If a fresh water tank extends to the main deck and is well forward (such that there is no deckhouse nearby), how is this requirement be met? Should the vent pipe be enclosed with a larger size pipe with its own vent? |
| WCC System Specification (Attachment J-1) Section 532.5.2.3 is revised to clarify when the potable water tank top may extend to the main deck. |
See response to Question ID# 57 for the proposed specification changes.
| 20 |
| J-1 |
| 532.7.2.3 |
| Are marine grade instantaneous water heaters available? What makes a water heater marine grade? |
| Yes. Instantaneous water heaters built for marine use, i.e. for use in sea water environment, are commercially available. |
| 21 |
| J-1 |
| 233.4.6.3 |
| This relief valve starves the engine of fuel and stops it when a fuel filter is dirty. A vacuum or pressure alarm that sounds to allow crew to change to the 2nd duplex filter would be safer than starving the engine of fuel and shutting it down without warning. |
| The USCG concurs. The WCC System Specification (Attachment J-1) Section 233.4.6.3 is updated to state the following, "233.4.6.3 Filters shall be duplex type and equipped with a differential pressure gauge. A relief valve shall be provided external to the filter casing to bypass oil around the filter to the fuel return line when the pressure drop across the filter housing exceeds manufacturer specified limits. |
233.4.6.3.1 Alternatively, filters and strainers may be fitted with a relief valve to bypass fuel directly to the engine provided that the following requirements are met.
233.4.6.3.1.1 The PCS shall continuously monitor the differential pressure across the filter or strainer.
233.4.6.3.1.2 The PCS shall provide an alarm prior to opening the relief valve to indicate the filter or strainer needs changed. The alarm shall activate when the differential pressure is 75% of the value when the relief valve is set to open.
233.4.6.3.1.3 The PCS shall provide a separate alarm indicating the relief valve has opened."
| 22 |
| J-1 |
| 589.2 |
| Do the cranes need sufficient strength capacity to remove spuds in Sea State 2? |
| Yes. The design criteria given in the WCC System Specification (Attachment J-1) Section 589.1.3 applies to all lifts for each crane, including the spuds. |
| 23 |
| J-1 |
| 589.2 |
| Do the cranes need a sufficient height and reach to vertically remove spuds from the spud wells for the FULL LENGTH of a spud using a hoisting point on the top of the spud? (We assume the intent is to be able to remove a damaged spud or if the hoisting rope has broken) |
| The crane needs to be capable of removing the full length of the spuds from the spud wells as specified in WCC System Specification (Attachment J-1) Section 589.2.6 and 589.3.4. |
| ID# |
| Section |
| Clause |
| Industry Question/Comment |
| Government Response |
| 24 |
| J-1 |
| 070.3.5.1.3 |
| The 45’ requirement does not seem possible based on our assumptions: 5’ freeboard light load at delivery/8.5’ deck heights x 3 decks = 25.5’/Railings +searchlights + radar on top of pilothouse = 4’/ “Restricted in Ability to Maneuver” lights spaced at 2m [6.56’] apart, total = 13.12’/ Anchor light must be above the RIAM lights 0.5’ /Total vertical height from waterline = 5+25.5+4+13.12 = 47.62’ |
| Offerors can assume a reduced separation of navigation lights to meet the air draft requirements. The limited air draft will require a certificate of alternative compliance for navigation light separation. |
| 25 |
| J-1 |
| 071.4.6.1 |
| Please confirm if access includes the emergency generator. Can the emergency generator radiator fan be closer to an exterior bulkhead than 45” with a duct as per typical practice? |
| The USCG concurs. WCC System Specification (Attachment J-1) Section 071.4.6.1 is updated to state "071.4.6.1 A minimum maintenance envelope of 45 inches shall be provided around sides and free ends of the propulsion engines and ship service generators sets." |
| 26 |
| J-1 |
| 512.5.4 |
| Does the main engine room and auxiliary machinery room require air filters on intake air vents? |
| In accordance with WCC System Specification (Attachment J-1) Section 512.5.4.1, air filters are not required in inlet air vents for spaces that are only ventilated and not conditioned. Machinery and auxiliary spaces fall in this category. |
| 27 |
| J-1 |
| 512.5.2 |
| Does the main engine and auxiliary machinery room require duct heaters as this would be unusual |
| See Attachment J-1G (PPD-512-001 WCC HVAC Design Criteria Manual), Design Criteria Sheet No.2 Special Requirements 8.(d). |
| 28 |
| J-1G |
| J-1G HVAC DCM |
| Please confirm number of air changes for engineer log/control room |
| The Engineering Log Office is categorized as an office. Attachment J-1G (PPD-512-001 WCC HVAC Design Criteria Manual), Design Criteria Sheet No. 6B provides the detail requirements. |
| 29 |
| J-1 |
| 180.1.9 |
| These are extremely large loads (848 tons at bottom shell, if loads for 4 spuds are added together). It would be expected that the spuds would yield/fail long before such loads are achieved. How were these loads derived? ABS Rules for liftboats/jackup rigs do not give such guidance to our knowledge on forces on side wells |
| The USCG concurs. The spud well reaction loads are revised. The WCC System Specification (Attachment J-1) Section 180.1.9.1 will be revised to the following, "Each spud well shall be designed to withstand simultaneous horizontal reaction loads of 96 kip and 54 kip respectively where the well connects to the bottom shell plating and deck plating, applied in opposite directions. This couple shall be independently considered longitudinally and transversely. Hydrostatic loads shall be considered concurrently." |
| 30 |
| J-1 |
| 233.2.5 |
| Our resistance calculations indicate the required engine power is >599 kW to obtain 11 knots at 85% MCR. EPA Tier 4 engines are required to be fitted for engines >599 kW. Can EPA Tier 4 engines, with associated SCR exhaust after treatment be fitted or will USCG obtain an exemption from EPA to allow fitment of Tier 3 engines for >599 kW engine power? |
| The USCG does not intend to obtain an EPA Tier 4 engine emission exemption for the WCC program. EPA Tier 4 engines with ABS approved emission abatement systems can be installed in the WCCs. The WCC System Specification (Attachment J-1) will be revised to state the following: |
“233.2.5 Diesel engines shall comply with 40 CFR Part 1042 emission standards.
233.2.5.1 If exhaust emission abatement systems are required to achieve 40 CFR Part 1042 emissions then the systems shall be in accordance with ABS Guide For Exhaust Emission Abatement.”
“070.3.2.6 EGC-SOx, if fitted with SOx scrubbing system.
070.3.2.7 EGC-SCR, if fitted with Selective Catalytic Reduction system.
070.3.2.8 EGC-EGR, if fitted with Exhaust Gas Recirculation system.
070.3.2.9 EEMS, if any EGC notation is provided.”
| ID# |
| Section |
| Clause |
| Industry Question/Comment |
| Government Response |
| 31 |
| J-1 |
| 259.2.6 |
| As exhaust gas systems are very low pressure systems, it is common commercial practice to use thinner plate flanges than minimum 150# flanges. Could thinner plate flanges but with ASME B16.5 bolt patterns be used? |
| WCC System Specification (Attachment J-1) Section 259.2.6 is revised to state "Flanges shall be ASME B16.5 or other approved flange standard." |
| 32 |
| J-1 |
| 532.7.2.4 |
| Using instantaneous water heaters in this manner creates large electrical demands on the power plant. Can a storage heater provide most of the heating for hot water, at low electrical load, with instant heaters providing only the final top up to desired temperatures, thus reducing electrical fluctuating large loads? Could a recirculating hot water loop system be used, to ensure constant hot water availability? |
| Attachment J-4 CDRL 300-005 provides the required load factors for instantaneous hot water heaters. WCC System Specification (Attachment J-1) Section 532.7.2.4 will remain unchanged. |
| 33 |
| J-1 |
| 556.6.1.1 |
| What does rated for marine service mean? Does it require Class approval? |
| "Marine Service" is defined by a national or international standard, an example is SAE J1776-2014. The HPU shall meet the specified requirements and the cutter shall be designed and classed in accordance with the WCC System Specifications (Attachment J-1). |
| 34 |
| J-1 |
| 580.5 |
| Please confirm that the River Buoy Tender has 4 x Spud winches + 1 Bow windlass/warping head winch + capstan but no additional deck winches? |
| The USCG confirms. See WCC System Specification (Attachment J-1) Sections 580.6.1, 580.8.1, 580.11.1, and Attachment J-1B, WCC-SK-580-001 for details. |
| 35 |
| J-1 |
| 581.1.3.1 |
| Stowing an anchor below decks is contrary to typical CFR/Class rules and good marine practice. In case of loss of propulsion, it could cause a grounding or collision since the anchor cannot be deployed quickly. Could the anchor be stowed on deck for ease of deployment with the chain and synthetic line stowed below in a typical chain locker arrangement with a spurling pipe leading below? |
| No. The anchor, anchor chain, and synthetic line shall be stowed below deck within reach of the crane. WCC System Specification (Attachment J-1) Section 581.1.3.1 will remain unchanged. |
| 36 |
| J-1 |
| 611.7.2 |
| This significant change reduces overall allowable hull beam by 5.56” because fendering is included in the 35.0 ft maximum beam (070.3.5.1.8). Hull displacement reduces by about 1.5%, a very significant reduction. In our experience split pipe fender is damaged or fractured quickly, leading to extensive internal rusting and costly removal and replacement of fender and hull plate. We suggest a 1/2” x 12” shear strake plate would be more robust and provide better protection than a split pipe fender without losing as much displacement. This is very common practice on US Great Lakes freighters which go through locks, barges on the West Coast, etc. |
| The requirement for half-pipe fendering as specified in Attachment J-1 Section 611.7.2. will remain unchanged. |
| ID# |
| Section |
| Clause |
| Industry Question/Comment |
| Government Response |
| 37 |
| J-1 |
| 621.5.3 |
| We assume expanded metal bulkheads should not apply to ATON store, as the adjacent ATON workshop is air conditioned and the store is not. In this case could a joiner bulkhead be provided? |
| Joiner bulkhead will be acceptable. WCC System Specification (Attachment J-1) Section 621.5.3, which specifies use of expanded metal bulkheads in storerooms, is overridden by the need for an HVAC boundary, for which a joiner bulkhead is acceptable. Bulkheads, if provided, inside the storeroom should be expanded metal or lightweight plate per the requirement. |
| 38 |
| J-1 |
| 644.2.2 |
| Could a single restroom with dual doors (exterior fwd. bulkhead and interior door near or in the mess) serve both the exterior deck and the mess/mudroom area? |
| No. A single restroom cannot serve both functions. |
| 39 |
| J-1 |
| 512.3.9 |
| Should the "28F for Ship tanks, voids, cofferdams and similar spaces below the EOSL full load waterline with any boundary exposed to the sea" be changed to 32F, to match the HVAC design manual? |
| The Heating Season temperature for "Ship tanks, voids, cofferdams and similar spaces below the EOSL full load waterline with any boundary exposed to the sea" in Table 512.3-1 is revised to 32 deg F. |
| 40 |
| J-1G |
| J-1G HVAC DCM, Section 8 (h) |
| The space is kept at 50F by unit heaters. The emergency generator will have a block heater and will start easily, even with cold outside air. Pre-heating the incoming air is not required for generator operation, is not typical commercial practice, and is not understood. |
| The USCG concurs. Attachment J-1G (PPD-512-001 WCC HVAC Design Criteria Manual), Design Criteria Sheet No. 2, paragraph 8(d) is revised to include "If Emergency Generator is provided with provisions to allow for starting in the service environments defined in WCC Systems Specifications 070, the unit heater may be omitted for the Emergency Generator Room only." |
| 41 |
| J-1G |
| J-1G HVAC DCM, Section 8 (i) |
| We typically supply fresh air with intake fans to the machinery space. There are no exhaust fans, just natural exhaust through louvres on the funnel(s). Some of the air supplied is consumed by the engines. Therefor the quantity of exhaust air will always be less than the intake air. Please provide clarification if such an arrangement could be acceptable. |
| The machinery space ventilation arrangement described in the question would not be acceptable. The proposed design will not meet the rate of change requirement for the machinery space (DCM sheet 2 special requirement 8b) or the negative pressure requirements (DCM sheet 2 special requirement 8i). |
| 42 |
| J-1G |
| J-1G HVAC DCM, Section 8 (k) |
| Our design does not have any diesel engines in the Auxiliary Machinery room. The auxiliary machinery room is not under the deckhouse, but further forward, near amidships and under the working deck. Please clarify if exhaust fans are required in this situation or if a supply fan and natural exhaust serving the space will suffice, not directed to the uptakes. |
| Mechanical exhaust, in accordance with PPD-512-001 (Attachment J-1G) Design Criteria Sheet No. 2, is required whether or not diesel engines are located within an Auxiliary Machinery room. |
To clarify requirements for exhaust routing, Design Criteria Sheet No. 2, section 8(k) will be revised to state, "Exhaust fans serving Engine and Auxiliary Machinery rooms may discharge into uptake spaces. Machinery rooms with fixed firefighting systems installed that do not discharge to uptake spaces shall be provided with independent supply and exhaust systems."
| 43 |
| J-1G |
| J-1G HVAC DCM, Section 8 (k) |
| Exhaust terminals 9" above deck will constitute a downflooding point when on the main deck, and will not comply with ABS/CFR regulations. Is an additional internal watertight trunk higher than the downflooding point acceptable? |
| The exhaust terminals terminating 9 inches above the deck referenced in Attachment J-1G HVAC DCM Design Criteria are all within the space and should not penetrate the main deck to be considered as down-flooding points. |
| 44 |
| J-1 |
| 070.3.1 |
| ABS withdrew the "Under 90 Meters" set of rules in 2020, replacing them with the Marine Vessel Rules. Has ABS given recent confirmation and agreement to using these rules? |
| Yes. The USCG has a formal agreement with ABS to design and class the cutters in accordance with "ABS Rules for Building and Classing Steel Vessels Under 90 Meters (295 Feet) in Length, 2019." |
| ID# |
| Section |
| Clause |
| Industry Question/Comment |
| Government Response |
| 45 |
| J-1 |
| 070.3.1 |
| Given (a) the very restricted and limited nature of these vessel’s ocean service (b) the position of the deckhouse at the aft end of the vessel, away from seas breaking over the bow. Could the deckhouse be designed to ABS Inland Vessel Rules while still maintaining a hull structure designed to <90m Rule? |
| No. The requirements will remain unchanged. |
| 46 |
| J-1G |
| J-1G HVAC DCM, Design Criteria No.5 |
| Could the Pilothouse independent air conditioning system be air conditioned/heated primarily by mini-split type ductless units with air cooled heat exchangers and electric heater coils? Based on our experience, these units are light, economical, easy to replace or repair by any land- based HVAC technician. 3 or 4 identical but totally separate units could be fitted, allowing for significant redundancy in heating or cooling the pilothouse. |
| No. The requirements will remain unchanged. |
| 47 |
| J-1B |
| WCC-SK-580-001 |
| Can the buoy sinkers be arranged transversely in 2 rows, in front of the buoy storage area, with center of mass centered on vessel centerline? This would move the center of gravity of a very heavy weight further forward to improve vessel trim. |
| No. Buoy sinkers need to be arranged in accordance with the River Buoy Tender Working Deck Drawing, WCC-SK-580-001 (Attachment J-1B). |
| 48 |
| J-1 |
| 070.10.1.1 |
| ABS Part 5C, Chapter 7 Vessels Intended to Carry Passengers / Section 4 Structural Fire Protection, 3.5 “Crowns and casings of category A machinery spaces are to be of steel construction...” This requirement would prevent the use of aluminum for the aft part of the deckhouse above the machinery space, imposing a significant weight penalty. It would also be complex to join an aft steel deckhouse to a forward aluminum deckhouse. We would suggest aluminum be accepted, with A-60 fire insulation to protect the bulkhead separating it from the rest of the deckhouse. The overhead deck of the lower part of the machinery space is steel and would be fitted with A-60 fire insulation. The aluminum deck over the machinery space aft (boat deck) should also be protected with A-60 fire insulation to protect the cutter boats. |
| The USCG, in discussion with ABS, concurs that adequately insulated aluminum for structural fire protection is acceptable in an aluminum superstructure where the machinery space is above the strength deck. |
WCC System Specification (Attachment J-1), Section 070 will be revised with the following requirements:
"070.10.1.2 Boundaries of category A machinery spaces constructed of aluminum shall have "A-60" rated insulation installed on the machinery space side.
070.10.1.3 Where category A machinery space, constructed of aluminum, shares a boundary with an adjacent space, the insulation installation shall be unrestricted."
| 49 |
| J-1 |
| 070.10.1.1 |
| Galleys are ABS high risk service spaces in passenger vessels. They must be isolated from mess areas. Does USCG want the galley isolated from the mess with a fire bulkhead between them? |
| WCC System Specification (Attachment J-1), Section 651 allows for the Mess Room and Galley to be provided as the same space or as separate, contiguous spaces. If the Galley and Mess Room are in the same space, then the Mess Room area also need to be treated as a greater fire risk space. |
| ID# |
| Section |
| Clause |
| Industry Question/Comment |
| Government Response |
| 50 |
| J-1 |
| 070.10.1.1 |
| ABS 5.7 Protection of Stairways “In general, all stairways serving accommodations are to be of steel frame construction, enclosed in "A" class divisions having positive means of closure at all openings” We suggest A-60 fire insulation for an enclosed aluminum stairway with fire doors to give a comparable level of safety. |
| The USCG, in discussion with ABS, concurs that A-60 insulation on both sides of the bulkhead in an enclosed aluminum stairway is acceptable. |
| 51 |
| J-1 |
| 079.2 |
| The NAVSEA Stability criteria (Table 6-2) for Overhauled, Towed, Decommissioned requires sufficient stability in an Open Ocean transit in 80 knots. This criteria would likely cause it to fail due to the nature of the vessel, which is more suited for ocean going vessels. It may not be possible for this style of vessel to pass this criteria. |
| The intact wind velocities listed in 6.1.1.2 of NAVSEA Technical Publication, T9070-AF-DPC 010/079-1 are not applicable for the WCC designs. |
| 52 |
| J-1 |
| 070.3.5.3.4 |
| Please clarify what areas may be considered “working deck” for purpose of this requirement: areas under the piling storage, areas outboard of the piling storage areas between the piling storage? |
| The USCG has clarified the definition of the working deck area in WCC System Specification (Attachment J-1). |
The revision added Section 070.3.5.3.4.1 "The working deck area is defined by the clear deck (inclusive of chocks and cleats but excluding crane pedestal, pile stowage areas, or the forward winch) available forward of a transverse line located at the centerline of the crane pedestal or the forward edge of the pile stowage area, whichever is further aft."
In addition, Section 070.3.5.3.5 is revised to state, "The weather deck shall stow 30 (threshold) / 36 (objective) construction piles (not to exceed 18 inches in diameter and 60 feet in length) in a fore and aft direction adjacent to the working deck in a designated fixture(s)."
| 53 |
| J-1 |
| 583.3.2.13 |
| Can the davit be in close proximity to the boat (within the space reservation for the boat?) Can the boat overhang the stern of the cutter? |
| The space reservation around the boat, required by WCC System Specification (Attachment J-1) Section 583.3.2.13, allows the davit to be within it. The boat cannot overhang the stern for safety reasons. |
| 54 |
| J-1 |
| 583.4.18.1.3 |
| Can these racks be positioned on the stern deck edge to jettison directly overboard instead of port/starboard? |
| Yes. The racks can be positioned on the stern deck edge. WCC System Specification (Attachment J-1) Section 583.4.18.1.3 is revised to state "Two (2), 10-can jettison type stowage racks conforming to USCG drawing no. FL-2300-2 shall be installed at the deck edge, port and starboard or the stern, allowing the cans to fall clear of the cutter when released." |
| 55 |
| J-1 |
| 300.3.5.2 |
| Are propulsion auxiliary support systems included in "Propulsion Systems" (fuel purifiers, fuel transfer pumps, ventilation)? |
| The propulsion auxiliary support systems are not included in "Propulsion Systems". |
| 56 |
| J-1 |
| 300.3.5.2 |
| “300.3.5.2.4 Mechanical handling systems” Does this include any of the following: Crane, Boat Davit, Spud winch, bow winch, deck winch, capstan? |
| The stated systems in the question are included in "Mechanical handling systems". |
| ID# |
| Section |
| Clause |
| Industry Question/Comment |
| Government Response |
| 57 |
| J-1 |
| 532.5.2.3 |
| “532.2.3 Potable water tanks shall not be in direct contact with the shell plating or other areas subject to freezing.” “532.5.2.3 A deck may be used as the top of a potable water tank provided that there are no access or inspection openings therein, …” These 2 requirements may contradict each other. Please clarify if the main deck is still allowed to form the top of the potable water tank |
| WCC System Specification (Attachment J-1) Section 532.5 is revised to clarify when the main deck is allowed to form the top of the potable water tank and is as follows: |
532.2.3 Potable water tanks shall not be in direct contact with the shell plating.
532.5 POTABLE WATER STORAGE
532.5.2 Storage tanks.
532.5.2.1 There shall be two (2) potable water tanks and they shall be approximately equal capacity. Potable water tanks shall not share a common boundary with tanks or piping containing non-potable liquids. Cofferdams shall be provided, as necessary, around the tanks to ensure that the potable water will not be contaminated from other tanks or from the sea and shall have a minimum clearance of 24 inches.
532.5.2.2 Piping systems carrying non-potable liquids shall not pass above (within the same compartment) or through potable water tanks.
532.5.2.3 A deck may be used as the top of a potable water tank provided that it is within the confines of the deck house, there are no access or inspection openings therein, and that the seams are continuously welded on the inside of the tank. There shall be no deck fittings, rivets or bolts in that part of the deck which forms the top of the tank. No toilet shall be installed over that part of a deck which forms the top of a potable water tank.
532.5.2.3.1 When potable water tank tops are not sharing a common boundary with the deck above, a minimum of 24 inches of clearance shall be provided between the tank top and deck above.
532.5.2.4 A minimum of 24 inches of clearance shall be required between the potable water tank bottom and bottom shell plating.
| 58 |
| J-1 |
| 532.5.2.4 |
| “532.5.2.4 A cofferdam shall be provided between the deck and the bottom of a potable water tank. “ Is "bottom" a typo? Should a cofferdam be located between deck and top of the water tank? If so, what minimum clearance is required? |
| WCC System Specification (Attachment J-1) Section 532.5 is revised to clarify the requirements for cofferdam and minimum clearance requirements around the potable water tank. |
See response to Question ID# 57 for the proposed specification changes.
| 59 |
| J-1 |
| 593.2.2.5.5 |
| We assume that sewage tanks can still be integral with the hull structure. Thus deck, side shell, and bottom structure must still be inside the tank. Only internal bulkheads can have structure that is external to the tank. If sewage tanks must be self contained, they add a very significant weight addition to the vessel. Please clarify the intent of this requirement. |
| The USCG does not concur with the assumption; the intent of the requirement in WCC System Specification (Attachment J-1) Section 593.2.2.5.5 is to have non-integral sewage holding tanks. For clarification, WCC System Specification (Attachment J-1) Section 593.2.2.5.5 is revised to state: "Sewage tank structure shall be external to the sewage holding tank and shall not be integral with the hull structure." |
| ID# |
| Section |
| Clause |
| Industry Question/Comment |
| Government Response |
| 60 |
| J-1 |
| 070.3.5.1.10 |
| Three naval architects have reviewed this requirement and cannot agree what this requirement means. Please provide a sketch or drawing to explain the geometry envisaged. |
| A sketch (Response to Q60 Sketch of Bow Shape.pdf) is provided for clarity. |
| 61 |
| J-1 |
| 200.6.2 |
| This requirement artificially penalizes a Contractor whose engine choice may offer more margin than another whose engine choice is exactly at 85% power level to reach 11 knots. We suggest the previous requirement of the power required to reach 11 knots be used. |
| The USCG does not concur. WCC System Specification (Attachment J-1) Section 200.6.2 Tables 200.6-1 and 200.6-2 will remain unchanged. |
| 62 |
| J-1 |
| 071.3.2 |
| We assume access through spaces is allowed (similar to the earlier Indicative General Arrangement where port and starboard access is via the engine room and repair locker), rather than dedicated passageways in a small deckhouse. Please confirm. |
| The USCG confirms that access through spaces to access the weather is allowed, provided a clear passageway is maintained. WCC System Specification (Attachment J-1) Section 071.2.3 is revised to state “One centerline passageway and two (2) athwartship passageways shall be provided on the main deck in the deckhouse to facilitate access to weather decks.” Passage and passageway are defined separately in Section 071. |
| 63 |
| J-1 |
| 070.5.7 |
| Please clarify these requirements with a drawing or sketch “the deck shall be flat (horizontal), with 1 inch camber” is not understood as a flat deck will not have camber. Please define the side deck camber height desired for both variants. |
| The original change cited in the response to Question ID #63 is withdrawn. Refer to Question ID #117 for the updated change to WCC System Specification (Attachment J-1), Section 070.5.7.1 |
| 64 |
| J-1 |
| 073.8 |
| Table 073-1 has noise limits of Category G spaces of 110-100 dB. This translates into an A-weighted value of 107 dB(A). Machinery rooms can be typically 115-121 dB(A) with high speed diesels & turbos and there is no noise treatment that will reduce this noise at the source. The intermittent value of 115 dB(A) will be exceeded in normal operation. Consideration should be given to changing these noise limits. |
| The USCG concurs. WCC System Specification (Attachment J-1) Table 073-1 is revised as follows: "Airborne Noise Acceptable Levels for Category G: Replace the Octave Band Center Frequencies with an A-weighted noise limit of 110 dB(A)." This requirement aligns with other commercial practices such as the ABS Guide for Crew Habitability on Workboats for machinery spaces. |
| 65 |
| J-1 |
| 589.2.13 |
| Can a drawing or photograph be supplied to clarify how this height requirement works and the impact hammer is stowed? |
| A picture of the impact hammer stowed (Response to Q65 - Picture of Crane w Hammer and Lead.pdf) is provided. |
| 66 |
| J-1 |
| 644.3.8 |
| The Mud Room, Mud Room Laundry, and Mess Room are all in very close proximity. Can consideration be given to reducing the number of eyewashes to two (Mess/Laundry?) to save space? |
| Detail requirements for installing eye wash stations can be found in ASTM F1166, as invoked by the WCC System Specification (Attachment J-1) Section 088.2.1.1, which states in 10.11.1 "Safety showers and eyewash fountains shall be located within 10 m (33 ft) of the source of contamination. The person in need of the fountain or shower shall not have to travel up or down stairs or change walking surface elevations at any point of travel between the point of contamination and the shower or fountain. The person shall not have to step over any obstacle, such as chemical spill containment rails, pipes, wireways on or above the walking surface." Provided these requirements are met, a single eye wash station may serve more than one prescribed location. |
| ID# |
| Section |
| Clause |
| Industry Question/Comment |
| Government Response |
| 67 |
| H |
| H-8 |
| Attachment J-10 is "Section 508 Requirements." Please provide EPA tables. |
| The referenced attachment will be provided in a forthcoming amendment. |
| 68 |
| H |
| H-8(a) H-8(b) |
| H-8(a) refers for FPI CLINs and H-8(b) only discusses direct material. Is it fair to assume that the EPA provisions will apply to direct labor and associated indirect costs? |
| Economic Price Adjustments will only be applicable to the elements as discussed in Section H-8. |
| 69 |
| J-1 |
| 243.2.1 |
| Cardan shafts decrease reliability and increase maintenance which counteracts other sections in the specification. Cardan shafts also would potentially restrict thruster to engine positioning. If the diesel output and the thruster input shafts are concentric without any offset, can a non-cardan shaft be utilized? |
| No. A cardan shaft is required. WCC System Specification (Attachment J-1) Section 243.2.1 will remain unchanged. |
| 70 |
| J-1 |
| 249.3.4.1.4 |
| Thrusters in this size range and in a bolted in from above configuration, seal maintenance and replacement is intended to be performed with the thruster out of the water as the working space is too small to allow underwater habitats and tool access needed for bonding jigs to install split seals etc. Seal replacement underwater is not technically and not economically feasible. How does the USCG define ‘seal maintenance’? If seal maintenance includes seal replacement, is the approach described acceptable if it can be performed with the thruster pulled up from the mounting well via a while the vessel remains afloat? |
| The USCG concurs with the concern. WCC System Specification (Attachment J-1) Section 249.3.4.1.4 is deleted. |
| 71 |
| J-1 |
| 200.2.4 |
| Under section 233.3.3 reference is made to various engine manufacture’s definitions of rating, which all state varying load factor and operating hours per year much greater than expressed in J1K1 “Design Reference Mission Profile”. Due to the extreme limitations on draft, the weight of this equipment is critical to the design. We request approval to rate the equipment based on the provided Mission Profile, but this would not remove the requirements stated regarding TBO, minimum bearing life, and MTBF requirements. Is this acceptable? |
| No. The engine rating requirements in WCC System Specification (Attachment J-1) Section 233.3.3 will remain unchanged. |
| Please confirm whether the file "Section_B_-_Supplies_or_Services_and_Prices_WCC_UPDATED_051221.docx" is meant to replace in its entirety file "Section_B_-_Supplies_or_Services_and_Prices_Continued_FINAL.pdf". |
| Yes, the updated Section B file was intended to replace the previously provided Section B in its entirety. It reflected a few small administrative changes and updated quantities. |
| ID# |
| Section |
| Clause |
| Industry Question/Comment |
| Government Response |
| 73 |
| C |
| C.2.6 (d) |
| Section C indicates that LLTM are subject to the EPA clause in H.8. However, Section B indicates that only the only LLTM CLINs labeled FP EPA are 1003AA and 1003AB in OP 2. In OP 3 through OP 10, the LLTM CLINs (X003) are labeled as FFP. Should the LLTM be FP EPA in all years in which it is being ordered? If not, what is the Governments logic for applying EPA to LLTM in OP 2 and not in the other years? |
| FP EPA will be used for LLTM in OP 2 through 10 and a modification to Section B will be provided. |
| 74 |
| C |
| C.2.10 |
| Clause C.2.10 calls for the Contractor to provide transportation to one of two delivery locations. However, Attachment L-2 does not allow for these SLINs to be priced as part of the proposal response. Does the Government intend to evaluate the transportation SLINs as part of the competition or do they simply intend to negotiate any transportation costs after Contract Award at the delivery order level? If the Government intends to evaluate these costs as part of the competition, how will they will be calculated? |
| Attachment L-2 does not allow pricing for Periods 1 and 2 because cutter transport is not anticipated to be required; however, proposed pricing is required for Periods 3 through 10. These prices will be part of the Total Evaluated Price. |
| 75 |
| H |
| H-8 |
| Attachment J-10 to the RFP is currently entitled "SECTION 508 REQUIREMENTS" and does not contain any tables or worksheets related to the Equitable Price Adjustment. In order to properly understand the contractual requirements and bid this effort accordingly, will the Government please provide any worksheets and tables as referenced in clause H.8? |
| This attachment will be provided in a forthcoming amendment |
| 76 |
| J-1 |
| 096.2.2.1 |
| Attachment J-1, 096.2.2.1, calls for a CM Design Margin weight of 1%. However, the formula in Cell C22 of the Weights and Loading Worksheet in Attachment L-4 calculates a 2% CM Design Margin weight. Which is correct, 1% or 2%? |
| A CM Design Margin weight of 1% in the WCC System Specification (Attachment J-1) section 096.2.2.1 is correct. Attachment L-4 template is updated and will be provided. |
| Various line items on both the WLIC Outfit List & WLR Outfit List tabs are missing the Required Quantity number. In order to accurately price the outfit list can the Government provide the quantity required for those items that have blank cells? |
| Attachment J-1J has been updated and will be provided. |
| Attachment J-7 shows a range of quantities from 2-r for each of the identified Deep Insurance Spares items. Attachment L-2 lists the same Deep Insurance Spares, but shows a quantity of 1. Given that both Attachment J-7 and L-2 must be completed, is the Offeror to provide pricing at different quantities as listed, or should Attachment L-2 be corrected to show the same quantities as Attachment J-7? |
| Attachment L-2 has been updated to reflect Attachment J-7 and will be provided. |
| ID# |
| Section |
| Clause |
| Industry Question/Comment |
| Government Response |
| 79 |
| L |
| L.5, (b) |
| The clause sited requires NDAs to be submitted in the Administrative Documentation in accordance with Section L.13, however Section L.13 is related to Management Approach Instructions and does not address NDA related issues. Can the Government please confirm that the correct reference should be to Section L.15? |
| The correct reference should be Section L.5(b) and has been updated in Section L and will be provided. |
| 80 |
| L |
| L.12 (b) (13) (iii) |
| Clause L.12 (b) (13) (iii) is an indented item under Clause L.12 (b) (13) that appears to cover a distinct topic. Was it the Government's intent for this to be a separate clause i.e. L.12 (b) (14) or is it a subsidiary clause to L.12 (b) (13)? |
| The referenced text is intended to be a subsidiary clause to L.12 (b) (13). |
| 81 |
| L |
| L.14 (b) (iv) |
| Can the Government please confirm that there is no clause L.14 (b) (iii) |
| Clause L.14 (b) (iii) should be at the beginning of paragraph at bottom of Page 2, right before the sentence, "For each Offeror's contract/project and…" and has been updated in Section L and will be provided. |
| 82 |
| L |
| L.15 (a) (ix) |
| Can the Government please confirm that the clause should reference "SF-33" and not "SF-1149"? |
| Yes. Section L will be updated to reference SF-33 vice SF-1149. |
| 83 |
| L |
| L.15 (a) (x) |
| Attachment J-7 is an Adobe Acrobat (pdf) file that does not include any areas for completion. Does the Government wish for the Offeror to create a separate file with an extended column that allows for completion of each line item? |
| Section L has been updated to remove instruction to complete Attachment J-7 and will be provided. |
| 84 |
| L |
| L.19 (a) |
| L.19 requests that Offerors complete Stepladder Pricing tables included in Attachment L-2. It does not appear that Attachment L-2 includes any way to enter Step Ladder Pricing for LLTM and Deep Insurance Spares. Can the Government please confirm their intention and correct L.19 or L-2 accordingly? |
| Attachment L-2 has been updated to add Stepladder Pricing and will be provided. |
| 85 |
| J-1 |
| 422.2.1 |
| According to the AMALGAMATED INTERNATIONAL & U.S. INLAND NAVIGATION RULES, Section 3. Horizontal positioning and spacing of lights, (a) Except as specified in paragraph (e) of this section, when two masthead lights are prescribed for a power-driven vessel, the horizontal distance between them ‹ shall › ‹‹ must ›› not be less than one quarter of the length of the vessel but need not be more than 50 meters. The forward light ‹ shall › ‹‹ must ›› be placed not more than one half of the length of the vessel from the stem. |
Compliance with position of the masthead light position requirements will result in a mast placed on the working deck of both the WLR and WLIC and is likely to impede with crane operations. Does the USCG anticipate issuing a Certificate of Alternative Compliance for positioning of masthead lights?
Current USCG cutters place the forward masthead lights on the crane. The USCG is aware of the possibility that a certificate of alternative compliance may be necessary for navigation light locations.
| ID# |
| Section |
| Clause |
| Industry Question/Comment |
| Government Response |
| 86 |
| J-1 |
| 070.3.5.2.2 |
| It is understandable why the government has proposed the introduction of the mentioned requirement into the specification. The Government has issued the Attachment J-1B WCC-SK-580-001 & the Attachment J-1C WCC-SK-580-002 and called them ‘contract drawings’ issued in the final RFP for the industry. |
Many factors dictate a successful hull form, as well as interior and deck arrangement for the WCC. This includes a hull form that not only provides the least draft and optimal speed, with the use of least propulsion power, while being able to safely and efficiently conduct all the mission objectives of the WCC, and at the same time ensure that the WCCs are built and operated in a cost efficient manner. These can become challenging and conflicting requirements, to propose a balanced and properly designed WCC in an integrated format with careful attention to each detail.
Will the arrangement drawing provided by the successful offeror become the contract drawing after evaluation and contract award if a maximum flexibility be provided, which is in the interest of the Government? Because it will allow the industry maximum flexibility and will provide a unique benefit to the Government to enhance mission effectiveness and operational capability. This will allow the innovation, and ingenuity to arrange the variants of the WCC and their interiors and working deck to enhance and offer the best, safest, most cost competitive and efficient design solution for the cutter operations to the USCG. If the Government agrees with this, we recommend to submit the details of the departure/changes benifttable to the Government and attain the specific approval per J-1 Sec 042.3.2.1.
In order to satisfy the above, Please recommend the Government's intention such that the our design will both comply and exceed the requirements.
Attachment J-1B WCC-SK-580-001 and the Attachment J-1C WCC-SK-580-002 remain as ‘contract drawings'.
| 87 |
| J-1 |
| 589.2.7 |
| We interpret the J-1 section clause 589.2.7 that the Construction Variant Crane is specified to have the capability to conduct an offboard lift of at least 4000 lbs at a 70 ft radius, such that this lift can be achieved by auxiliary hoist systems and the overall length of the main and auxiliary load hoist system can be well within 70 ft. |
| The lift of 4,000 lbs at 70 feet may be achieved by the auxiliary hoist systems. The crane hoist and length shall be able to perform the pile driving and extraction operations required by the WCC System Specification (Attachment J-1) Section 589.2.4, which requires all three (3) hoist lines to be at the max reach of the crane. |
| 88 |
| L |
| L.12 |
| Both Sections L.12 and L.13 require a discussion of teaming arrangements. Would it be permissible to cross reference information from L.12 to L.13? |
| Yes, it is permissible to cross-reference, as appropriate. |
| ID# |
| Section |
| Clause |
| Industry Question/Comment |
| Government Response |
L.12.b.(13) & L.13a.(4)
| There is a quantity discrepancy between Section B and Attachment L-2. |
| Please reference Government responses to Question ID# 93, #94, and #95. |
This is the start of the file's text. The full file is on GovTribe.
