REV_02_-_ATTACHMENT_02_-_140P8626Q0043_-_STATEMENT_OF_WORK_0001.pdf

REQUEST FOR QUOTATION (RFQ) # 140P8626Q0043 – REV 02

STATEMENT OF WORK (SOW)

SAN FRANCISCO MARITIME NATIONAL HISTORICAL PARK

(SAFR)

Purchase Block Replacement - Running Rigging Blocks

For NHL Balclutha

BACKFROUND

NHL Ship Balclutha is a fully rigged vessel with an intricate system of masts, wire, and rope rigging. Blocks are used for hoisting rigging, masts, yards, controlling sails, lifting equipment, and moving components between deck and aloft. The ship has a total of 234

Blocks that are being replaced.

Many of Balclutha’s Blocks are rotten, missing, or damaged, creating safety risks. The vessel’s Block inventory is inconsistent in maker, style, and condition. New Blocks are needed for restoration and preservation.

SPECIFICATIONS:

Running Rigging Blocks for replacement will meet the following specifications: Block

List

- By Block size and type with associated running rigging component.

All Blocks for the running rigging –

- the Blocks are to be in the British style common when the ship was launched

(1886)

- Sample (or mock-up) of each type and size of running rigging Block to be provided to the COR for approval of materials, fit, finish, operation and appearance prior to manufacture of the remaining Blocks. If the Blocks are not able to be sent, good photos with clear understanding of appearance and build quality must be provided.

- All subsequent Blocks manufactured must match the materials, fit, finish, operation and appearance of the COR approve sample (or mock-up).

- Blocks found to differ from the original COR approved sample (or mock-up) will not be accepted and will require replacement by the Contractor with the approved type at no additional cost to the Government.

- Each sample (or mock-up) Block and all subsequent Blocks of a specific type shall match in detail, construction and specification to the approved requirements.

- Blocks to be delivered assembled and completed with shells unpainted.

- Shells to be of either Elm or Ash (Fraxinus Americana).

- Ironwork and fittings will be either Mild Steel and hot dipped galvanized or made from 316 Stainless steel and finished to give a galvanized appearance.

- Current metal straps do not allow proper use of the Sister Hooks which should be used as connectors in the rigging, since the Hooks bind on the wide straps – they were designed to be used on Blocks with a rounded strap, common in

Britain in the 1880’s. At a minimum, this detail must be present on the Blocks with Sister Hooks.

- Metal straps to be of mild (A36) steel, forge welded where possible and hot-dipped galvanized prior to assembly. 316 Stainless steel made to look galvanized is acceptable.

- Sheaves to be of black Delrin or COR approved equal.

- Sheaves pins shall be 316 stainless steel or copper with a square head.

- Rivets and associated roves or washers to be copper.

- Finished Blocks must have the date of manufacture or some other distinguishing mark stamped on all steel components to identify that they are not historic.

BALCLUTHA

Plain Gear for FOREMAST (Total in # column reflects both Port & Starboard side count)

Foremast Line D. Length Blocks &c. P&S Inches # Hooks &c

Royal: Gantlines 16 Single X 6 2 Safety shackles

Braces 16 Single X 6 2 Strop (falls)

" 16 Single X 6 2 Sisterhook (turning block @ Miz shrouds)

Halyard Gin 1

" 20 Double 8 1 Becket & s hackle (on wire pendant)

" 20 Double 8 1 Sisterhooks on port rail

Topgallant: Braces 20 Single X 8 2 Stropped (in yoke on main)

" 20 Single X 8 2 Sisterhook @ Xtrees

" 20 Single X 8 2 Stropped (falls)

Halyard Gin 1

" 22 Double 10 1 Sisterhooks (on deck)

" 22 Double 10 1 Becket & sisterhooks on pendant

Upper Topsail: Braces 24 Single X 10 2 Shackled to chain pendant on yard & captured on wire

Braces 24 Single X 10 2 Sisterhooks @wire pendant

24 Single X 10 2 Sisterhook @bumkin on rail

Halyard Gin 1

“ 28 Treble 14” 1 Sisterhook @deck eyebolt

“ 28 Treble 14” 1 Becket & hook (on chain)

“ 28 Single 14” 1 Becket & hook (for gilguy)

(footblock)

Downhaul 20 Single X 8” 4 Sisterhooks (captured on wire)

“ 20 Single X 8” 2 Stropped (falls)

Lower Topsail: Braces 24 Single X 10 2 Shackled to chain pendant on yard & captured on wire

“ 24 Single X 10 2 Sisterhooks to wire pendant

" 24 Single X 10 2 Sisterhooks to bumkin

Course: Braces 32 Single X 12 2 Sisterhooks

" 32 Single X 12 2 Sisterhooks

Braces 32 Single X 12 2 Becket & sisterhooks on yard pendant

Lift Gin X 6” 2 Steel (at mast)

“ 32 Double X 12” 2 Hook (@ deck)

“ 32 Double X 12” 2 Becket & sisterhook

Staysail: Halyard 24 Single 9 1 Hook & becket @ chain

“ 24 Single 9 1 Shackle @ head of sail

Downhaul 20 Single 8 1 Shackle to forestay shear pole

Sheet 24 Single 9 1 Shackle to clew

Catheads: Treble X 16” 2 Anchor fish & swivel

Fish tackle Treble 16” 1 Sisterhooks

Treble 16” 1 Anchor fish & swivel

Single 14” 1 Snatch block @ deck lugs (S)

Cargo Hatch Double 6” 1 Double w/hook (@ truss bow)

Single 6” 1 Becket & hook

Total this page 63

Cargo Gear Single 10” 1 Hook & swivel @ yardarm (P)

Single 10” 1 Hook & swivel @ quarter (P)

Single 8” 1 Snatch block

Age of Sail Single X 8” 2 Shackle (1 @ each quarter)

Total: FORE MAST 68 Blocks Gin Block 5

6” Single w/ shackle 3

6” Single w/ becket & hook 2

6” Double w/hook 1

8” Single Stropped 8

8” Single w/ sisterhook 8

8” Single w/ shackle 4

8” single snatch 1

10” Single w/ hook & swivel 2

10” Double w/ sisterhook 1

10” Double w/ becket & shackle 1

10” Treble w/ sisterhook 1

10” Treble w/ becket & sisterhook 1

12” Single w/ sisterhook 6

12” Single w/ shackle 6

12” Double w/ becket & sisterhook 2

12” Double w/ hook 2

14” Single w/ becket & hook 1

14” Single w/ sisterhook 4

14” Single w/ becket & sisterhook 2

14” Single Snatch 1

14” Treble w/ becket & hook 1

14” Treble w/ sisterhook 1

16” Treble w/ becket & hook 1

16” Treble w/ hook & swivel 3

TOTAL 68

Plain Gear for MAIN Mast (Total in # column reflects both Port & Starboard side count)

Foremast Line D. Length Blocks &c. P&S Inches # Hooks &c

Royal: Gantlines Single X 8" 2 Safety shackles

Braces Single

Single

X

X

8"

8”

Strop (falls)

Sisterhook (turning block @ Miz shrouds)

Halyard Gin 1

" Double 10" 1 Shackle & becket (on wire pendant)

" Double 10" 1 Sisterhooks @deck

Topgallant: Braces Single

Single

Single

X

X

X

8"

8”

8”

Stropped (in yoke)

Sisterhook @ Xtrees

Stropped (falls)

Halyard Gin 1

" Treble 10" 1 Sisterhooks (on deck)

" Treble 10" 1 Sisterhooks & becket on pendant

Upper Topsail: Braces Single X 12” 2 Shackled to chain pendant on yard & captured on wire

Braces Single

Single

X

12”

Sister hooks @wire pend.

Sisterhook @bmkin

Halyard Gin 1

“ Treble 14” 1 Sisterhook @deck pendant

“ Treble 14” 1 Hook & becket (on chain)

“ Single 14” 1 Hook & gilguy becket (footblock)

Downhaul Single X 8” 4 Sisterhooks (captured on wire)

“ Single X 8” 2 Stropped (falls)

Lower Topsail: Braces Single X 12” 2 Shackled to chain pendant on yard & captured on wire

“ Single

Sisterhooks to wire pendant

Sisterhooks to bmkin

Course: Braces

(Timenoguy block)

14”

14”

Sisterhooks to bmkin pendant

Sisterhooks to bmkin pendant

Braces Single X 14” 2 Sisterhooks & becket on yard pendant

Lift Single X 6” 2 Steel (at mast)

“ Double X 12” 2 Hook (@ deck)

“ Double X 12” 2 Sisterhook & becket

Total: MAIN MAST 88 Blocks Gin Block 3

6” Steel 2

8” pair of Single Stropped (1 unit) 2

6” Single 6

8” Single 6

8” Single Stropped 4

10” Double 1

10” Double w/Becket 1

10” Treble 1

10” Treble w/ Becket 1

12” Single 12

12” Double 4

14” Single 5

14” Single w/Becket 2

14” Treble 2

Sisterhooks 26

Hooks 4

Shackles 6

TOTAL 88

Plain Gear (plus 2 sails) MIZZEN MAST (Total in (How many) # column is Port & Stbd count)

MIZZEN Line diam

Length of line

Block type

P&S

Inches How many

Hardware etc

Royal:

Gantlines

Single X 8" 2 Safety shackles

Braces

Double

8" 2

Sisterhook, found on Mainmast

@TMcap BLOCK SHARED WITH

TG BRACE

Single X 8” 2 Stropped (falls)

Halyard

Gin 4” 1

Double 10" 1 Sisterhooks to pendant

Double 10" 1 Sisterhooks & Becket @deck

Topgallant:

SEE ROYAL BRACE NOTE

Double 10” 1 Sisterhooks (on deck)

Double 10" 1 Sisterhooks & becket on pendant

Single 10" 1 Sisterhooks (on deck)

Upper Topsail:

Single X 12” 2 Sisterhooks to wire pendant

Double

X 12” 2

Sisterhooks @MAIN lift band

SHARES W/LWR T’PS’L

Single X 12” 2 Sisterhook (footblock @china rail)

Treble 12” 1 Sisterhook @deck

Treble 12” 1 Hook & becket (on chain)

Single 12” 1 Hook & becket (footblock)

Downhaul

Single X 8” 4 Sisterhooks (captured on wire)

Lower Topsail:

Single X 12” 2 Sisterhooks to wire pendant

Double X 12” SEE UPPER TOPS’L NOTE

Single X 12” 2 Sisterhook (footblock @china rail)

Sheets

X 4” 2 Sheetblock in Cro’j’k yardarm

4” 1 Butterfly block @ cro’j’k truss

Double X 6” 4 2 w/hook, 2w/chainhook & becket

Clewline

Single X 8” 2 Stropped block (falls)

Single X 8” 4 Sisterhooks (captured on wire)

Buntline

Single X 6” 4 Tailblock (on shrouds)

Cro’j’k:

Single X 12” 2 Sisterhooks ( @Main Futtock)

Single X 12” 2 Sisterhooks & becket on yard pendant

Lift

Gin X 6” 2 Steel Gin block (at mast)

Double X 12” 2 Hook (@ deck)

Double X 12” 2 Sisterhook & becket

Spanker Gaff:

Vangs

Single X 8” 2 Sisterhooks (to wire pendant)

Spanker Boom:

Topping Lift

Double X 10” 2 Sisterhooks & becket (aloft)

Double X 10” 2 Hook (on boom fitting)

Sheets

Double X 10” 2 Sisterhooks & becket (@boom fitting)

“ Double X 10” 2 Hook (on deck)

Staysail:

Single 6” 1 Sisterhook (under top)

Single 6” 1 Shackle (to sail)

Downhaul

Single 6” 1 Tailblock (to stay)

Sheet

Single 8” 1 Shackle (to clew of sail)

“ Single 8” 1 Becket (to rail) & Sisterhook & tail (to stanchion)

Age of Sail Single X 8” 2 Shackle (on strops around yard)

Total: MIZZEN MAST 78 Gin Block & steel block for lifts 8

6” Single tailblock 5

6” Single w/ shackle 1

6” Single w/ sisterhook 1

6” Double w/ hook 2

6” Double w/becket & chainhook 2

8” Single stropped 8

8” Single w/ shackle 5

8” Single w/ sisterhook 10

8” Single w/ becket & sisterhook 1

10” single w/ sisterhook 8

10 “ double w/ sisterhook 5

10 “ double w/ becket sisterhook 6

10” double w/ hook 3

12” single w/ sisterhook 4

12” single w/ hook 1

12” single hook & becket 2

12”double w/ hook 2

12” double w/ becket & sisterhook 2

12”treble w/ sisterhook 1

12” treble w/ becket & hook 1 total 78

DELIVERY TIME FRAME

*Period of Performance (POP): 09/28/2026 – 09/27/2027

*Delivery dates and times are subject to CO or SAFR COR’s approval.

*Delivery must occur Monday through Friday excluding Federal Holidays, Between 8:00 AM and 3:00 PM (PD)

*Provide a minimum of 24-hour notice of intent to deliver.

DELIVERY LOCATION

San Francisco Maritime NHP (SAFR)

860 Nimitz Ave., Vallejo, CA 94592

POC: ADRIAN McCULLOUGH

SAFR Historic Ships Manager

San Francisco Maritime NHP (SAFR)

C#: 415-802-4666

Email: adrian_mccullough@nps.gov