B08_Attachment_18-BALCLUTHA_2026_DRYDOCK_RFI_2_0003.pdf

BALCLUTHA 2026 DRYDOCK: RFI 2

References: Please provide access to Builder’s Specs per discussion during vessel check.

Part 7: Carpentry and Caulking

1. Where the decking material is not called out, should it be assumed that Douglas Fir is the correct material?

Decking material is identified in Specification Item 7.02 Replace Wood Decking, 2 References and Materials, B Materials:

4. Douglas Fir, (Pseudotsuga menziesii var.glauca) deck planking… (main deck)…, (poop deck)

5. Long Leaf, (Pinus palustris) deck planking… (forecastle-head deck)

6. Pitch or Yellow Pine (Pinus rigida) deck planking… (forecastle-head deck and/or main deck house)

2. 7.02.B/C and 7.02.D/E/F: Can SP3 steel surface preparation be substituted for sandblasting when the exposed steel is confined by adjoining wood decking?

Yes.

3. Pg. 77, para. A. and pg. 81, para. A: is removal of cement waterways required only when the 11” wide margin immediately adjacent is being removed?

Yes.

4. Pg. 77, para D: “Scale” deckbeams is superseded by para E?

Para D. is amended as follows; delete “Scale and” and now reads “Repair deckbeams in kind as needed. Repairs to be conducted via exercise of applicable Item 4 section.”

5. Pg. 78, para H: should it be assumed that repairs to interferences will be covered by change order?

No, per Section 2 General Req’s, Item 2.10 Interferences; “The costs associated with interferences are to be included in the applicable work item. Due to the historical significance of the vessel, all ships fabric is considered to be an artifact and of national historical significance; care and consideration is mandatory.”

If items of interference appear to be of such condition that damage is unavoidable, that should be brought to the attention of the CO as soon as possible.

6. Does 7.02.C require only 4” wide Douglas Fir decking?

a. If not, please quantify margins and/or belts.

Item 7.02.C does include margins and/or belts.

Margin planks and Belts are to be ten inches (10”) in finished width and same thickness as the adjacent planking.

7. Does 7.02.E include both port and starboard sides 25’ fore & aft of the break bulkhead (appx. 600 SF), or is it meant for only one side of the Poop Deck (appx.

300 SF)?

Item 7.02.E is only the Starboard side (approx. 300 SF)

7.02.D “bulkhead” is 1911 bulkhead (@ approx. FR 46/47) 7.02.E “bulkhead” is original/historic bulkhead (@ approx. FR 17/18)

8. Does 7.02.F require only 4” wide Douglas Fir decking?

a. If not, please quantify margins and/or belts.

Item 7.02.F is only additional Douglas fir decking. Any margins or belts would be awarded separately under option item 7.03.B.

9. 7.03.A and 7.03.B can’t be accurately priced without knowing the approximate location of the replacements as well as the quantity of margins vs. belts. The margins are considerably more expensive per linear foot than belts, particularly at the stern of the Poop Deck and if cement waterways are also part of the margin price. Please specify location and quantity for both margins and belts.

Margin planks and Belts within these items are to be ten inches (10”) in finished width and same thickness as the adjacent planking. Margin plank stock will need to be ordered wider than ten inches (10”) to account for loss when cutting any shape to match the vessel’s contours.

Item 7.03.A includes cement waterways adjacent to margin boards identified for replacement within the shelter deck.

Item 7.03.B does not include any cement waterways and will be limited to the forward face of the poop deck aft to the two large mooring bits port or starboard. The area of poop deck aft of and between the two mooring bits would be excluded from this option item.

10. Please specify deck bolt size for each of the four decking zones.

See attached photos for reference.

Forecastle Head Deck: ½” dia.

Main Deck: ½” dia.

Main Deckhouse: 3/8” dia.

Poop Deck: 3/8” dia.

11. Please specify net dimensions (thickness & width) for decking in each of the four zones.

All dimensions identified within the specification are net and as follows; (thickness x width)

• Forecastle-head, Main Deck House: 3” x 5”

• Main Deck (Shelter Deck): 3-3/4” x 4”

• Poop Deck: 3-5/8” x 3-5/8”

• Additional Decking Material per 7.02.H: 3” x 5”

CLIN 7.02.H is amended as follows; delete “Main” from description to now read “Deck Material Only” with net dimensions of 3” x 5”

Specification section is Item 7.02.2.B:

4. Douglas Fir, (Pseudotsuga menziesii var.glauca) deck planking 5” 4” wide by 4” 3-3/4” thick (main deck), 3-5/8” square (poop deck)

5. Long Leaf, (Pinus palustris) deck planking 5” x 3” (forecastle-head deck)

6. Pitch or Yellow Pine (Pinus rigida) deck planking 5” x 3” (forecastle-head deck and/or main deck house)

12. What is the minimum length allowed for teak margins?

Fourteen foot (14’) minimum length allowed.

Preserve Shelter Deck Belt measuring 24’ length for either reuse or delivery to NPS.

13. Please confirm that coating of steel deck structure where 3.02A is referenced is to be as follows:

a. 1 coat Devoe 235

b. 1 stripe coat Devoe 235

c. 1 coat Devoe 235

d. 1 coat finish paint on exposed side

Devoe 235 is an acceptable “anti corrosion bar rust multi purpose epoxy coating” per specification.

The coating schedule submitted meets the specification below:

CLIN 7.02: “Faying surfaces, (to include the steel deck beams, margin plates, and angle iron) to which the new decking is fastened shall be prepared and coated per Item 3.02.A. Exposed vertical plate seams (such as between the topgallant rail, bulwark plate, and angle iron at the hardwood margin board, shall be prepared and coated per Item 6.07.”

14. Please confirm that coating of steel deck structure where 6.07 is referenced is to be as follows:

a. Apply (1) base coat and (1) reinforcement coat of Blue Seal (or equivalent)

b. Apply (1) topcoat, alkyd gloss enamel.

Blue Seal is an acceptable “three-coat vinyl-ester resin coating system” per specification.

The coating schedule submitted meets the specification below:

CLIN 7.02: “Faying surfaces, (to include the steel deck beams, margin plates, and angle iron) to which the new decking is fastened shall be prepared and coated per Item 3.02.A. Exposed vertical plate seams (such as between the topgallant rail, bulwark plate, and angle iron at the hardwood margin board, shall be prepared and coated per Item 6.07.”

15. Please confirm that the government will accomplish all removal of joinery below the poop deck and exhibit interferences below the main shelter deck, as required in way of decking replacement.

Yes, the government will remove joinery and exhibit interferences IWO specified/awarded work prior to vessel transit to shipyard.

CLIN 7.02.A is amended as follows;

Insert after: … in accordance with Item 7.03. “Forecastle head deck margin/waterway boards are eleven-inch (11”) finished width and three quarters of an inch (3/4”) greater thickness than the adjacent planking. Belts are ten-inch (10”) finished width and three quarters of an inch (3/4”) greater thickness than the adjacent planking.”

Insert after: … per Item 3.02.A. “Exposed vertical plate seams (such as between the topgallant rail, bulwark plate, and angle iron at the hardwood margin board, shall be prepared and coated per Item 6.07.” (as found in CLINs 7.02.B/C/D/E/F).