DRAFT

NOAA SHIP NANCY FOSTER

(R-352)

30JUL2026

MED/KRZ

SONAR GONDOLA DETAILED DESIGN AND FABRICATION REQUIREMENTS

1.0 ABSTRACT

1.1 This specification describes requirements for detailed design of a sonar gondola, fabrication of sonar gondola, engineering for removal of existing blisters and other related engineering tasks.

2.0 REFERENCES:

2.1 Kongsberg Gondola Feasibility Study Dated 28JUL2026

2.2 Drawing NF-085-002 REV G, NOAA Ship NANCY FOSTER Docking Plan

2.3 Drawing NF-085-001, General Arrangement

2.4 NOAA Standard Specification 0000.0 GENERAL REQUIREMENTS FOR SHIP

REPAIR CONTRACT WORK ON NOAA VESSELS

2.5 Shell Expansion Drawings

2.6 Port and Starboard ‘Blister’ Installation drawings.

3.0 ITEMS LOCATION/DESCRIPTION:

3.1 Affected Transducers:

3.1.1 EM2040 TX, 0.7deg

3.1.2 EM2040 RX, 0.7deg MkII

3.1.3 Teledyne Reson SVP-70

3.1.4 EM712 TX, 0.5deg

3.1.5 EM712 RX, 1.0deg

3.1.6 Teledyne Reson SVP-70

3.1.7 EK80 38kHz

3.1.8 EK80 70kHz, ES70-7C

3.1.9 EK80 120kHz, ES120-7C 312-204022

3.1.10 EK80 200kHz, ES200-7C 312-200841

3.1.11 ADCP, Teledyne RDI, Ocean Surveyor 150kHz, model 71A-

1023-00

3.1.12 Knudsen 3200chirp, 12kHz, part KEL-922

3.1.13 Knudsen 3200chirp, 200kHz, part KEL491-200kHz

3.1.14 Furuno DS6030-30 (‘speed log’)

3.1.15 Furuno FE800 50kHz, part 50B-6B

3.1.16 Furuno FE800 200kHz, part 200B-8B

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICE:

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SONAR GONDOLA DETAILED DESIGN AND FABRICATION REQUIREMENTS

4.1 None

5.0 NOTES

5.1 Target completion of new gondola: 1OCT2027

5.2 Target installation of new gondola by shipyard is during new scheduled dry docking during Q1 FY28.

5.3 Port and Starboard sonar ‘blisters’ were installed in 2011. Refs 2.6 contain detailed information about these installations.

6.0 QUALITY ASSURANCE: NONE ADDITIONAL

7.0 STATEMENT OF WORK REQUIRED:

7.1 Perform detailed design of sonar gondola based on findings in ref 2.1.

7.1.1 Design shall incorporate all sensors listed in section

3.1.

7.1.2 Design shall incorporate allowances for future upgrades of transducers.

7.1.3 The design shall not exceed the minimum dimensions shown in ref 2.1 for extent below the baseline to ensure draft impact is minimized.

7.1.4 Consult as necessary w/ OEMs and NANCY FOSTER Survey

department personnel:

7.1.4.1 Kongsberg POC – Travis Eliasen

(Travis.Eliasen@kd.kongsberg.com)

7.1.5 Design shall be of sufficient detail such that a 3rd party fabrication contractor can successfully construct gondola. Contact OEMs as necessary to obtain dimensions of sensors listed in 3.1 to properly template all mounting flanges, casings, base plates, etc.

7.1.6 The gondola design shall incorporate any OEM provided

casings and base plates.

7.1.7 Design shall meet all Marine Vessel ABS construction

standards, as applicable.

7.1.8 Perform preliminary design review approximately 45 days after contract award. Perform Final Design Review 60 days after contract award. Each design review shall include

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30JUL2026

government personnel assigned by the COR as well as the Kongsberg Rep.

7.1.9 Perform necessary ship check(s). Note that the ship will not be in drydock for any ship check.

7.2 After completion of Final Design Review above, subcontract (if necessary) gondola construction to 3rd party who possesses necessary skills, expertise and capabilities to construct new gondola. Prime may perform construction if they possess aforementioned experience. The subcontractor must provide ABS certified welders to construct the gondola. The subcontractor must also have previously demonstrated work in the marine industry and provide a quality control plan to include welder certifications, test plans, inspections plans, dimension control and tolerance plans, and material certification plans.

7.2.1.1 The gondola fabricator shall use OEM provided

casings and base plates for mounting sensors when referenced in the design drawings.

7.2.1.2 Prime contractor shall coordinate weekly progress

meetings with subcontractor and inform COR when ABS inspections are to occur during construction.

7.2.1.3 Paint interior floodable space of new gondola

with Sherwin Williams paint system appropriate for this application. Paint exterior w/ primer coat (Sherwin Williams system).

7.2.1.4 Inform COR at 25%, 50%, 75% an 100% completion

milestones and afford COR opportunity to inspect progress.

7.2.1.5 The completed gondola shall be crated and ready

for shipment. NOAA will provide for shipment to the shipyard for installation.

7.3 Compile comprehensive installation and engineering package containing the following deliverables:

7.3.1 Installation and modification work specification(s). This shall provide necessary details for a shipyard contractor to accurately bid and execute gondola installation work, modifications and other new installations related to integration of new gondola onto vessel. Ensure OEMs are consulted regarding alignment of transducers and other technical considerations.

7.3.2 Removals drawings. This shall depict all removals of

existing ‘blisters’ and sonar sea chests. Additionally, (R-352)

30JUL2026

this shall also depict demolition of existing conduit and cable transits that will not be used for new gondola.

7.3.3 Installation & Modification drawings. This shall depict (and not limited to):

7.3.3.1 Installed location of new gondola

7.3.3.2 New conduit pathways and cable transit locations.

7.3.3.3 Dimensions and locations of hull inserts where

blisters, old sonar sea chests and unused cable penetrations were removed.

7.3.3.4 Details of new hull markings depicting new draft

as well as any other marking required by ABS.

7.3.3.5 All drawings shall be reviewed by ABS

Engineering. Contractor is responsible to resolve any comments. NOAA will cover costs of review via existing IDIQ contract.

7.3.4 Special Dry Docking Plan. Modify 2.2 as necessary to

safely dock and support vessel during dry dock repair period during which above modifications are to take place. Title this revision “Special Revision”

7.3.5 Update Ref 2.2 for future dry dockings after new gondola has been installed. Title this revision REV H.

7.3.6 Update REF 2.3 to show new installation of gondola and

hull markings showing new draft of vessel.

7.3.7 Provide a weight report, showing the weight and center

changes to the ship for the removals and installations as well as any buoyancy impacts. Update the ships GHS model to reflect the changes.

7.3.8 All above deliverables shall be completed by 15MAR2027.

Rough drafts of deliverables shall be made available for review no more than 30 days prior to final draft due date.