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Spars, Rigging, and Hardware for Sailboats

Rig-Rite, Inc.
Phone: (001) 401-739-1140 -- FAX: (001) 401-739-1149
www.RigRite.com        Spartan Ordering/Questions

Schaefer Spars 075 Boom Section


Schaefer Spars 075 Section
Measurements: (OD) 2.84" x 2.125" (2 7/8" x 2 1/8")
Wall Thickness: .085"
Weight/ft.: .917 lbs.
Moments of inertia: Ixx = .60", Iyy = .34"
Alloy: 6061-T6
Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope

Common Boom usage: Cape Dory 25*; Cape Dory 28 Jib Club*;
See Also: Kenyon Spars C6-Section Mast
c6-mast.gif (4734 bytes)

When Cape Dory Yachts started their own Spar building company, Spartan Spars, they designed a new range of technically superior Spar Sections, primarily for their larger boats. They also copied, making minor improvements on, the Sections previously supplied by a number of outside vendors for their smaller boats. This Boom Section (used on the Cape Dory 25) was not among them, and was replaced by the heavier Spartan Spars CD-2 Section on later Cape Dory 25's. Although Schaefer Spars and its' 075 section are now defunct, we have made arrangements to supply Replacement Parts for this Section as a service to owners of older Cape Dory 25's.

Schaefer Spars 075 Standard Boom Hardware


Schaefer 075 - Section Goosenecks
075-Section Roller-Reefing Gooseneck Ass'y w/ 1/2" Slide: RR 4B-1ARS:
Spring-loaded roller-reefing mechanism works by pulling aft on the boom and turning it in 1/2 turn increments. SS yoke assembly is fixed in a rectangular recess until boom is pulled aft. SS Spring locks yoke into recess when boom is released. Works only with end-boom sheeting systems with swiveling mainsheet and topping lift attachments. Cast, Clear anodized aluminum boom end fitting includes captive SS tack pin and SS roller-reefing yoke assembly, K-8700A, with 3/4" SS Toggle, K-9267, and SS gooseneck Slide, K-9138. Fits all mast sections using 1/2" or larger round slugs or boltrope. As used originally on the Cape Dory 25.

 

 

 

 

075-Section Roller-Reefing Gooseneck Ass'y w/ 3/4" Toggle: RR 4B-1ART:
As RR 4B-1ARS (above), but without SS Gooseneck slide. Toggle attaches directly to gooseneck brackets or slides designed for a 3/4" toggle.

075-Section Gooseneck Casting w/ Tack pin: RR 4B-1A:
Clear anodized aluminum boom end fitting as used in 075 Gooseneck Assemblies (above), includes captive SS tack pin. Casting has 3/8" hole centered in 1" x 7/8" recess for attachment of various SS yoke assemblies for 3/4" toggle.

 

SS Roller-Reefing Yoke Ass'y for 3/4" Toggle: K-8700A:

SS spring-loaded roller-reefing yoke assembly for use with boom end castings that have a 3/8" hole centered in a 1" x 3/4" rectangular recess. Attaches to 3/4" SS Toggle with a 1/4" SS bolt and locknut (included). Post is 3/8" diameter x 3 1/2" long. Includes SS Spring, SS washers, and cotter pin.

 

K-8700A 

 

SS Gooseneck Toggle – 3/4": K-9267:

SS Gooseneck Toggle connects yoke on boom to gooseneck brackets or gooseneck slides designed for a 3/4" toggle. Toggle is 3/4" square x 7/8" long with 1/4" holes at 90 degrees to each other on 3/8" centers.

 

K-9267
SS Gooseneck Slide - 3/4" for Boltrope: K-9138A:

SS Gooseneck slide fits any gooseneck assembly using standard 3/4" toggle, using a 1/4" bolt and locknut (included). Slide has heavy welded SS ring for downhaul attachment. Fits all mast sections using 1/2" or larger round slugs or boltrope.

 

K-9138A
075-Section Gooseneck Ass'y w/ 1/2" Slide: RR 4B-1AFS:
Cast aluminum boom end fitting includes captive SS tack pin and SS yoke, 3/4" SS Toggle, and SS Gooseneck Slide. Fits all mast sections using 1/2" or larger round slugs or boltrope.

 

075-Section Gooseneck Ass'y w/ 3/4" Toggle: RR 4B-1AFT:
As RR 4B-1AFS (above), but without SS Gooseneck slide. Toggle attaches directly to gooseneck brackets or slides designed for a 3/4" toggle.

 

SS Yoke Ass'y for 3/4" Toggle: K-79A:
SS yoke attaches to gooseneck casting with a 5/16" bolt, and to 3/4" SS Toggle, with a 1/4" SS bolt and locknut (included).

 


Schaefer 075-Section Outhaul Ends
075-Section Outhaul Casting: RR 4B-2C:
Cast aluminum boom end fitting has tab with 2 holes for outhaul, and/or topping lift attachment.

 

075-Section Outhaul Ass'y w/ Tang: RR 4B-2A1:
Cast aluminum boom end fitting has tab with 2 holes for outhaul, and/or topping lift attachment. Includes swiveling tang for mainsheet or topping lift attachment. Swiveling attachments for mainsheet and topping lift are required for use with roller-reefing goosenecks.

 

075-Section Outhaul Ass'y w/ 2 Tangs: RR 4B-2A2:
Cast aluminum boom end fitting has tab with 2 holes for outhaul, and/or topping lift attachment. Includes 2 swiveling tangs for mainsheet and/or topping lift attachment. Swiveling attachments for mainsheet and topping lift are required for use with roller-reefing goosenecks.
 

Schaefer 075-Section Accessories
Outhaul Slides
A variety of Outhaul Slides are available to fit the 1/2" Boltrope groove in the Schaefer 075 Boom Section. See Outhaul Slides for 1/2" Boltrope Groove.
 
Boom Bail - 1/2" Strap x 2 1/2" long: K-291A:

SS Boom Bail is a lightweight formed-strap design, which can be easily contoured to fit a variety of smaller sections. Bail is 1/2" wide x 1/16" thick, and 2 1/2" long. Fastens with (4) 3/16" (#10) fasteners.

 

K-291A
< b>Boom Bail - 1/2" Strap x 3 1/2" long: K-291B:

SS Boom Bail is a lightweight formed-strap design, which can be easily contoured to fit a variety of smaller sections. Bail is 1/2" wide x 1/16" thick, and 3 1/2" long. Fastens with (4) 3/16" (#10) fasteners.

 

K-291B
Boom Bail - 1/4" x 1 3/4" wide: K-S9001:

SS Boom Bail made from 1/2" x 1/16" strap is designed to be attached with (1) 1/4" SS bolt and nut. Formed at 1 3/4" wide, width can be varied to fit larger or smaller sections. Bail length, from bolt center, is 2 1/2". 

 

K-S9001
Boom Bail Bolt Ass'y - 1/4": K-S9001BA:

Boom Bail bolt assembly includes 1/4" SS bolt x 2 1/4", with locknut, and nylon washers to prevent bail from damaging boom surface as it pivots. Used with K-S9001 Boom Bail.

 

 
Boom Vang Ball Attachment Plate w/ Channel: K-2182:

Formed SS plate for attachment of Boom Vang with 1/8" wire swage ball. Allows for quick attachment and removal of Boom Vang, raised channel design allows easy installation without milling slot in boom. Channel projects approximately 3/8" from underside of Boom when installed. Formed Stainless Steel plate is 2" long x 1 7/8" high. Fastens with (6) 3/16" (#10) screws or rivets.

 

Boom Vang Ball Attachment Plate for Flush Mounting: K-2182F:

Formed SS plate for attachment of Boom Vang with 1/8" wire swage ball. Allows for quick attachment and removal of Boom Vang, flush mounting design allows use with Roller-Reefing booms. Base is curved to fit a variety of Boom Sections, narrow profile allows it to be bent to fit others. Formed Stainless Steel plate is 3" long x 1 1/2" wide. Mounting requires 3/8" wide x 1 1/4" long slot in Boom. Fastens with (6) 3/16" (#10) screws or rivets.

 

Sch 90-54XS
Boom Vang Wire Pennant w/ Swage Ball: K-2182WP:

Wire Pennant for attachment of Boom Vang to Boom Vang Ball Attachment Plate. Pennant is 1/8" wire with swage ball and shank (MS20664-4) on one end and a nicopress and thimble on the other. Thimble allows attachment of any upper Vang block. Assembly is 6" long. Ball is suitable for all Ball Attachment Plates with a slot that is 1/4" wide or less.

 

Cheek Block w/ Curved Base: K-140X:

Cheek Block with curved base is used on smaller Booms for Outhaul and Reef lines. SS Cheek Block has 1 1/16" OD Delrin Sheave suitable for use with line up to 3/8" diameter. Base is 3 3/16" long x 7/8" wide, and fastens to spar with (4) 3/16" (#10) RH screws on 2 11/16" (horizontal) and 1/2" (vertical) centers.

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