WCC_System_Spec-Significant_Changes.pdf

WATERWAYS COMMERCE CUTTER PROGRAM

The Waterways Commerce Cutter (WCC) Program received significant feedback from its Request for Information on its Draft RFP released in July 2020. Based on that feedback and additional USCG analysis, the USCG expects to make several major changes that will be incorporated in its RFP release.

This Special Notice releases those major changes to the Technical Data Package and are reflected herein. There are many other changes to the Technical Data Package that will be reflected in the final RFP release.

In addition, this Special Notice is providing industry with additional or updated drawings from the WCC draft RFP. In particular, being providing:

1. The river buoy dump board drawing, which is a primary reference containing construction details for the buoy sinker dump unit.

2. The navigation block diagram, which provides guidance for the internal and external connections of the navigation system required in Section 420 of the specification.

3. A simplified version of the USCG’s indicative inland construction tender design, which is provided to industry for information only and will not be invoked or referenced by the specification or RFP.

4. A simplified version of the USCG’s indicative river buoy tender design, which is provided to industry for information only and will not be invoked or referenced by the specification or RFP.

SWBS 070

• Added 6.2’ max significant wave height to ABS restricted service notation.

o WAS: 70.3.2.2 None o IS: 070.3.2.2 Restricted Service 6.2 ft Maximum Significant Wave Height and 50 Miles from Shore

• Added CRC to ABS required notations o WAS: None o IS: 070.3.2.5 CRC

• Revised Principal Design Features o WAS: 070.3.2.2 Restricted Service 6.2 ft Maximum Significant Wave

Height and 50 Miles from Shore – o IS: 070.3.2.2 Government Service 6.2 ft Maximum Significant Wave Height and 50 Miles from Shore –

• Added that the cutter shall have a molded depth of not less than 10’ at deck edge.

o WAS: None o IS: 70.3.5.1.6 The cutter shall have a molded depth of not less than 10.0 ft at the deck edge.

• Added that the draft measurement at midships will not include anodes in the measurement o WAS: The hull draft at midship, inclusive of appendages shall not exceed

5 feet 6 inches in freshwater at Full Load End of Service Life displacement.

o IS: 70.3.5.1.7 The hull draft at midship, inclusive of appendages – but exclusive of anodes shall not exceed 5 feet 6 inches in freshwater at Full Load End of Service Life displacement.

• Removed Objective Endurance o WAS: 070.3.7.1 The cutter endurance shall be 11 days (threshold)/15 days (objective). See Sect. 200 for the Mission Profile.

o IS: 070.3.7.1 The cutter endurance shall be 11 days. See Sect. 200 for the

Mission Profile.

• Clarify Deck Cargo Items and Weight o WAS: 070.3.5.2.4 The working deck shall hold 100 each 470 lb fourth class river buoys, 150 each 1,500 lb concrete sinkers, and 1,000 feet of chain.

o IS: NONE. Replaced by Table 070.3-1.

o WAS: 070.3.5.3.3 The construction variant shall have the capability to carry 100,000 lbs of ATON cargo on the weather deck without obstructing the working deck area.

o IS: 070.3.5.3.3 The construction variant shall have the capability to carry 100,000 lbs of ATON cargo (inclusive of piling driving hammer and lead) on the weather deck without obstructing the working deck area.

• Remove outfitting of vibratory hammer – Construction Variant (WLIC) o WAS: 070.3.5.3.6 The cutter shall be equipped with pile driving and pile extraction equipment such as a pile driving hammer and vibrating pile extractor/driver hammer.

o IS: The cutter shall be equipped with pile driving hammer.

• Removed requirement for equipment to operate with dynamic rolls and pitches o WAS: 070.7.4 Equipment and machinery, exclusive of the deck crane, shall operate with dynamic roll of as much as 30° and dynamic pitch of as much as 5° (both single amplitude).

o IS: NONE

• Added a Table for WLR & WLIC Deck Loads o WAS: Loads were written in plain text o IS: Tables 070.3-1 and Table 070.3-2 o Loads for each variant is captured in tabular format as follows:

Load Item Unit Weight

(lb) or (lb/ft)

Qty Total Weight (lb)

4th Class River Buoys 470 100 47,000 Sinkers 1,500 150 225,000 ½” Chain 2.4 13,500 32,400 ½” Wire Rope 0.46 13,500 6,200 Total Deck Load - - 310,600

Table 070.3-1 Buoy Tender Variant Cargo Load

Load Item Qty Total Weight(lb) Total Deck Load - 100,000

Table 070.3-2 Construction Variant Cargo Load

Item Full Load Condition Minimum Operating

Condition

Crew and Effects Includes embarked personnel Full complement Full complement

Provisions and Personnel Stores FULL = Complement times No. of days times endurance times pounds per man per day.

• 15 day limit on chill stores

• Medical and embarked personnel stores in normal amounts.

Full 1/3 Full Load

General Stores Stores other than personnel stores that are consumable.

Full 1/3 Full Load

Cargo Table 070.3-1. for River Buoy Tender Variant Table 070.3-2 for Construction Variant

Propulsion and Generator Fuel Storage Each tank 95% full

Storage tanks 33.3% Full Load filled IAW liquid loading instructions

Propulsion and Generator Fuel Service Each tank 95% full Each tank 50% full

Lube/Hydraulic Oil Storage Each tank 95% full Each tank 33.3% full

Settling/Reclamation/Contaminated/ Drain/Waste Oil/Oily Waste Tanks Each tank 25% full Each tank 50% full

Fresh Water Each tank 100% full 33.3% Full Load

Condition

Sewage Holding Tanks (CHT) and Grey Water Tanks Each tank 25% full Each tank 66.7% full

Water Ballast Tanks Empty In accordance with

Liquid Loading Instructions.

WAS: Table 070.4-1: Loading Conditions for Construction and River Buoy Tender Variants

Condition

Crew and Effects Includes embarked personnel Full complement Full complement

Provisions and Personnel Stores FULL = Complement times No. of days times endurance times pounds per man per day.

• 15 day limit on chill stores

• Medical and embarked personnel stores in normal amounts.

Full 1/3 Full Load

General Stores Stores other than personnel stores that are consumable.

Full 1/3 Full Load

Cargo Table 070.3-2. for River Buoy Tender Variant Table 070.3-2 for Construction Variant

Propulsion and Generator Fuel Storage Each tank 95% full

Storage tanks 33.3% Full Load filled IAW liquid loading instructions

Propulsion and Generator Fuel Service Each tank 95% full Each tank 50% full

Lube/Hydraulic Oil Storage Each tank 95% full Each tank 33.3% full

Settling/Reclamation/Contaminated/ Drain/Waste Oil/Oily Waste Tanks Each tank 25% full Each tank 50% full

Fresh Water Each tank 80% full 33.3% full

Sewage Holding Tanks (CHT) and Grey Water Tanks Each tank 5% full Each tank 66.7% full

Water Ballast Tanks Empty In accordance with

Liquid Loading Instructions.

IS: Table 070.4-2: Loading Conditions for Construction and River Buoy Tender Variants

SWBS 073

• Ensure vessel can operate w/vibratory hammer o WAS: 073.5.5 The cutter and cutter equipment shall be designed to withstand vibrations imposed by the vibratory hammer.

o IS: 073.5.5 The cutter and cutter equipment shall be designed to withstand vibrations imposed by the crew’s use of an ICE Model 216 or ICE Model 14D vibratory hammer.

SWBS 096

• Revised End of Service Life Margins o WAS: 096.2.4.1 The SLA for weight shall be: 10.0 % of Light Ship displacement at delivery, applied at the Light Ship longitudinal center of gravity, with the TCG on centerline, and the VCG at a height that provides the required Service Life Allowance for KG.

o IS: 096.2.4.1 The SLA for weight shall be: 5.0% (Threshold)/ 10.0 % (Objective) of Light Ship displacement at delivery, applied at the Light Ship longitudinal center of gravity, with the TCG on centerline, and the VCG at a height that provides the required Service Life Allowance for KG.

SWBS 100

o WAS: 100.3.8 None o IS: 100.3.8 The hull shall be strengthened for loads resulting from towing operations as specified in Section 582.

SWBS 200

• Revised endurance fuel load requirements o WAS: 200.6.1 The cutter shall be provided with sufficient fuel tankage for a minimum endurance of 11 days (Threshold) / 15 days (Objective) without replenishment.

o IS: 200.6.1 The cutter shall be provided with sufficient fuel tankage without replenishment for the mission endurance defined herein.

WAS: Table 200.6-1. WCC Buoy Tender Variant Mission Profile.

U/W

TRANSIT

U/W WORKING

FIXED OR

FLOATING

ATON

NOT U/W (SPUDDED DOWN OR

OTHERWISE

MOORED/ANCHORED AWAY

FROM SHORE SERVICES)

% of day while deployed 10% 40% 50%

NOTES:

1. For U/W TRANSIT the cutter speed is 11 knots.

2. For U/W WORKING, the cutter speed is 8 knots.

3. For NOT U/W, shore power is assumed to not be available.

IS: Table 200.6-1. WCC Buoy Tender Variant Mission Profile.

U/W

TRANSIT

U/W WORKING

FIXED OR

FLOATING

ATON

NOT U/W (SPUDDED DOWN

OR OTHERWISE

MOORED/ANCHORED AWAY

FROM SHORE SERVICES)

% of day while deployed

10% 40% 50%

NOTES:

1. For U/W TRANSIT each propulsion engine shall be operated at 85%

Rated Power.

2. For U/W WORKING, the cutter speed is 8 knots.

WAS: Table 200.6-2 WCC Construction Variant Mission Profile

TRANSIT

U/W WORKING

FIXED OR

FLOATING

ATON

NOT U/W (SPUDDED DOWN OR

OTHERWISE

MOORED/ANCHORED AWAY

FROM SHORE SERVICES)

% of day while deployed 20% 30% 50%

NOTES:

1. For U/W TRANSIT the cutter speed is 11 knots.

2. For U/W WORKING, the cutter propulsion is secured.

IS: Table 200.6-2 WCC Construction Variant Mission Profile.

TRANSIT

U/W WORKING

FIXED OR

FLOATING

ATON

NOT U/W (SPUDDED DOWN OR

OTHERWISE

MOORED/ANCHORED AWAY

FROM SHORE SERVICES)

% of day while deployed 20% 30% 50%

NOTES:

1. For U/W TRANSIT each propulsion engine shall be operated at 85% Rated

Power.

2. For U/W WORKING, the cutter propulsion is secured.

o WAS: 200.6.5 None.

o IS: 200.6.5 A 10% burnable fuel reserve margin shall be added to the calculated fuel load.

SWBS 512

• Removed requirement for bridge HVAC to be designed to compensate for having the doors open.

o WAS: 512.3.8 Except for the Pilothouse and work areas with direct access to the weather deck, such system design shall assume that there is no air flow through weather access openings (doors, hatches and windows) and that interior accesses (doors and hatches) are closed or open as defined by their damage control classification for the cutter's normal operation at sea. The work areas and Pilothouse shall have HVAC systems designed to compensate for air leakage due to opening of weather doors when conducting cutter operations.

o IS: 512.3.8 Except for the Pilothouse and work areas with direct access to the weather deck, such system design shall assume that there is no air flow through weather access openings (doors, hatches and windows) and that interior accesses (doors and hatches) are closed or open as defined by their damage control classification for the cutter's normal operation at sea.

SWBS 532

• Clarify potable water storage.

o WAS: 532.3.1. Potable Water. The potable water storage shall be sized for 50 gallons per berthing accommodation per day for mission endurance defined herein.

o IS: 532.3.1. Potable Water. The potable water storage shall be sized for 50 gallons per threshold accommodation per day for mission endurance defined herein.

SWBS 580

• Remove outfitting of vibratory hammer o WAS: 580.1.12.1 The Construction Tender class shall be provided with one impact hammer, Delmag diesel pile hammer D6-32 or equal.

o IS: 580.1.12.1 The Construction Tender class shall be provided with one impact hammer, Delmag diesel pile hammer D6-32 or equal. A vibratory hammer will not be organic ship equipment and shall not be provided with the cutter.

SWBS 589

• Crane – Construction Class o WAS: 589.2.3 The crane shall be installed to self-load from the pier, place in the water, and lift out of the water piles and related ATON equipment.

The crane shall be used for pile driving and extraction operations using an impact and/or vibratory hammer.

o IS: 589.2.3 The crane shall be installed to self-load from the pier, place in the water, and lift out of the water piles and related ATON equipment.

The crane shall be capable of pile driving and extraction operations using an impact and/or an ICE Model 216 or ICE Model 14D vibratory hammer.

SWBS 622

• Change Floor Plate Loading and Material (GENERAL) o WAS: 622.2.5 Floor plates, platforms, and gratings shall be capable of supporting a load of 200 pounds per square foot.

o IS: 622.2.5 Floor plates and platforms shall be capable of supporting a load of 144 pounds per square foot. Gratings shall be capable of supporting a load of 100 pounds per square foot.

• Floor Plates o WAS: 622.3.9.2 Unless otherwise specified, floor plates shall be raised pattern type, CRES.

o IS: 622.3.9.2 Floor plates in machinery spaces shall be raised pattern type, CRES. All other floor plates shall be raised pattern type, aluminum.

SWBS 633

• Rewrote to require anodes only o WAS: 633.2 IMPRESSED CURRENT CATHODIC (ICCP) PROTECTION SYSTEM

“633.2.1 If an Impressed Current Cathodic system is installed, it shall be in accordance..……………”

633.2.11 ICCP hull penetrating component locations…………”

o IS: 633.2 SACRIFICIAL ANODE CATHODIC PROTECTION SYSTEM… “633.2.1 General Design

633.2.1.1 For the construction tender variant intended for sea water or brackish water service, sacrificial anodes shall be of aluminum alloy in accordance with MIL-DTL-24779.

633.2.1.2 For the buoy tender variant intended for fresh water service, sacrificial anodes shall be of magnesium alloy in accordance with MIL-A- 21412 or ASTM B843……………..”