Spartan Spars CD-4 Mast Section
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Spartan Spars CD-4
Measurements: (OD) 6.0" x 4.0" (152mm x 102mm)
Wall Thickness: .160"
Weight/ft.: 2.87 lbs.
Moments of inertia: Ixx = 8.3", Iyy = 4.45"
Circumference: 15 7/8"
Alloy: 6061-T6
Standard Mast Lengths: 33'8", 36', 41'6"
Sail slides: 3/4" flat slides (A006M)
Internal Electrical slides: SP-E126
Common Mast usage: Cape Dory 27*, Cape Dory 270*, Cape Dory 28, Cape Dory
30*; Sabre 28*;
See Also: Spartan Spars CD-4 Boom
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Spartan CD-4 Mast Section
CD-4 Mast Section - Clear Anodized: SP-CD4CA-___:
CD-4 Mast Section - Raw: SP-CD4R-___:
Spartan CD-4 Section Mast Tube is stocked in a variety of lengths (listed above)
fully anodized or raw (mill finish), it can also be cut to shorter lengths.
To order, specify length.
Sections can also be milled for the sailgate or
other components, painted finishes and other lengths are available on special order,
Please specify. If you require a complete Mast Assembly, you can select from
components below and contact us with specifications.
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CD-4 Standard Mast Hardware |
Listed below are parts specific to
the Spartan CD-4 Mast Section. All CD-4 Cast Aluminum Mast Components are standard with
a clear anodized finish for maximum corrosion resistance and greater longevity. Other
finishes available on special order.
There are many parts for unusual configurations that are not listed here. If you require
CD-4 Section Mast Components not listed here please contact us with details.
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CD-4 Masthead: SP-083A:
Heavy-duty cast aluminum masthead assembly with 4 Aluminum sheaves is designed to allow
use of external OR internal halyards. Includes SS Toggles, SP-81-08, for
headstay and backstay with 1/2" pins and a topping lift attachment pin. Housing is cast
in 356 Aluminum with clear anodized finish.
Optional spinnaker bail (SP-083-1) is available.
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1 3/4" Alu. Sheave w/ Integral Bushing: K-198-7AB4:
Anodized Aluminum Sheave with integral Oilite Bronze bushing. Sheave is 1 3/4" OD x
1/2" wide (w/ bushing) x 1/4" ID. With wire/rope V-groove. Used in most
CD-4 Mastheads. |
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Masthead Toggle Ass'y w/ 1/2" Pin: SP-81-08:
SS Masthead Toggle Assembly is formed without slot to sit on 1/2" cross-pin going
through masthead without central support, and includes 1/2" (lower) Clevis Pin.
Toggle measures (maximum) 2 1/4" long x 1 1/8" wide x 1/8" thick, with 1 1/4" between
pin centers, and will accommodate eyes up to 9/16" thick.
CD4
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Masthead Spinnaker Bail: SP-083-1:
Heavy 5/16" SS bail is welded to a 2 1/4" x 1 7/8" flat plate which attaches to the top
of the masthead with (4) 1/4" RH machine screws. Screw hole spacing (to centers) is
1 1/2" fore and aft x 3/4" wide. Bail is angled downward and projects 1 1/2" forward of plate.
Mounting requires drilling & tapping (4) 1/4-20 holes. |
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Upper Shroud Tang for 3/8" Pin: SP-204:
SS Shroud Tang was designed for use with Shrouds up to 7/32" diameter using standard
Aircraft Fork. Tang is 1 1/4" wide x 6 1/4" long x .120" with (2) 3/8" mounting holes
and (1) 3/8" Pin Hole. Bolt hole centerlines are 1 7/8" apart, Pin Hole center is 3 1/8"
from lower bolt. Assembly attaches to the mast with (2) 3/8" bolts. Mounting requires
(2) 3/8" holes in side of mast. Especially suitable for use in Upper Shroud applications
as the 2 bolts allow no fore and aft movement, it is also suited for other applications
where the tang should not be allowed to pivot.
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Upper Shroud Clevis Tang w/ 1/2" Pin: SP-206:
SS Upper Shroud Tang Assembly was designed for use with Shrouds up to 9/32" diameter
using standard Marine Eyes. Tang is 6 7/8" long x 1 1/4" wide x .120"
with (1) 1/2", and (1) 3/8" mounting hole and includes (1) 1/2" Clevis Pin.
Tang Assembly mounts with (1) 1/2" bolt and (1) 3/8" bolt on 1 7/16" centers;
Pin center is 4" from lower bolt. Especially suitable for use in Upper Shroud
applications as the 2 bolts allow no fore and aft movement, it is also suited for
other applications where the tang should not be allowed to pivot. |
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CD-4 Bow/Foredeck Light Ass'y: SP-086:
Combination Bow (Steaming) and Foredeck light, in cast aluminum housing fits forward
side of CD-4 mast section. Foredeck light, SP-E265, is on bottom angled forward,
and 20 point Bow light, SP-E964, is mounted on top. Assembly attaches
to mast with (1) 1/4-20 x 3 1/2" FH machine screw (included).
Housing is cast in 356 Aluminum with clear anodized finish.
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Bow Light (round): SP-E964:
SS Bow Light shines forward 20 points, and is used on Spartan Combination Bow/Foredeck
Light Assembly. Round base is 2 3/8" diameter and fastens with (3) #6 screws.
Requires 3/4" hole for socket. Replacement Bulb: 12-volt, GE # 90.
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Foredeck Light (round): SP-E265:
Chrome plated Bronze Foredeck Light on plastic base illuminates the deck, and is used on
Spartan Combination Bow/Foredeck Light Assembly. Round base is 2 3/4" diameter and
fastens with (2) #8 or #6 screws on 1 1/2" hole centers. Replacement Bulb:
12-volt, GE # 70.
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Spreaders
The Spartan CD-4 mast section is normally used with the Spartan
SP-090 (1 1/4" OD), and sometimes,
SP-091 (1 5/16" OD) Round Spreaders.
For other Spreaders, see
Spartan Spreader Sections.
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Spreader Boots for 1 1/4" & 1 5/16" OD Spreader: SP-057B:
Spreader Boot for 1 1/4" OD & 1 5/16" OD Spreaders is designed to reduce sail chafe.
White Rubber Boot is attached to Spreader and Shroud using wire ties or Rigging Tape.
Sold in Pairs only, they are (maximum) 5 3/4" long.
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CD-4 Spreader Base - Triangular: SP-089:
Triangular Cast aluminum Spreader Base fits flush with the mast surface and attaches
with (3) 1/4" FH machine screws and a 3/8" bolt. Unique and sleek design allows for
use of the same 3/8" bolt as an attachment point for a lower shroud tang,
SP-205. Used for rigs with in-line spreaders, base has 5-degree
vertical lift. For use with 1 1/4" OD Spreaders,
SP-090. Please Note: If
ordering this item as a replacement part, please verify OD of Spreaders as early units
were produced for 1 5/16" OD Spreaders, SP-091.
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CD-4 Spreader Base - Square: SP-089-0:
Older style, Square Cast aluminum Spreader Base fits flush with the mast surface and
attaches with (4) 1/4" RH machine screws and a 3/8" bolt. Design allows for use of the
same 3/8" bolt as an attachment point for lower shroud tang, SP-205.
Base is (maximum) 3 1/2" wide x 3 1/2" high. Used for rigs with in-line
spreaders, base has 5-degree vertical lift. For use with 1 1/4" OD Spreaders,
SP-090. Please Note: If ordering
this item as a replacement part, please verify OD of Spreaders as early units were
produced for 1 5/16" OD Spreaders, SP-091.
S55-34
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1 1/4" OD Spreader Ass'y x 37 1/2" long: SP-090AS:
Standard Spartan SP-090 Round Spreader is
1 1/4" OD x 1" ID x 37 1/2" long (mast to wire) and has Aluminum Tip, SP-090T,
with hole for seizing wire (included). Clear anodized 1 1/4" Standard Spreader Assembly
is (maximum) 38 1/8" long. |
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1 1/4" Round Spreader Ass'y - Special: SP-090A-___:
Spartan SP-090 Round Spreader is 1 1/4" OD
x 1" ID and has Aluminum Tip, SP-090T, with slot for upper shroud, and
hole for seizing wire (included). Finished spreaders are available in any length,
standard finish is clear anodized, specify color if painted finish is required.
To order: specify maximum length from inboard end to shroud bearing surface, and finish.
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1 1/4" OD Round Spreader Tip: SP-090T:
Aluminum Spreader Tip for 1 1/4" OD x 1" ID Spreader features slot for
up to 1/4" shroud. Lightweight, compact version replaces earlier Cast
style and features cross-hole for seizing wire. New-style turned Tip extends shroud
seat 1/2" beyond spreader tube, unit projects 1 1/16" (maximum) beyond spreader
tube and is carefully rounded to reduce sail chafe. As K-8609.
cast 3/4",1 3/8"
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Double Shroud Tang for 5/16" Pins: SP-205:
SS Double Shroud Tang mounts on a 3/8" bolt, for use with 2 Shrouds up to 7/32"
diameter using standard Aircraft Forks. Tang is 1" wide (at top) x 2 1/2" wide
(at bottom) x 6 5/8" long x .120" with (1) 3/8" mounting hole and (2)
5/16" Pin Holes. Pin Hole centers are 5 1/2" (vertical) from mounting hole and
are 1 1/2" (horizontal) apart. Used as Lower Shroud Tang with SP-089
Spreader Bases, and in a variety of other applications. Identical to Sch 85-55.
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CD-4 Hinged Sailgate: SP-101:
Original cast aluminum hinged assembly has sliding SS pin which, when lifted allows the
1 1/2" gate section to swing open. Designed to be mounted above the height of the
stacked mainsail slides, the sail is loaded by putting the lowest slide in first.
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Sailgate Stop: K-10424:
SS internal sliding gate stop assembly has spring plunger pin and slides in the mainsail
track. Slide is 3/4" wide x 2 1/2" long. As the slide is longer than the gate
cut-out it is held captive in the track and is locked in front of the gate cut-out by a
hole drilled in the track there. Pulling the SS plunger allows you to slide the stop
down and open the gate. Designed to be mounted just above the Gooseneck Bracket, the
sail is loaded by putting the top slide in first, and sliding the stop up to cover
the gate after the last (lowest) slide is in. RR 73-97
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height of the sail stack, this system offers numerous advantages over the original
hinged sailgate in that it is totally captive (can't be lost), unobtrusive, and never
needs replacement. Most importantly it simplifies sail raising and lowering, and
especially reefing, as the sail slides have no obstacles as they slide up and down the mast.
Please NOTE: Although it offers a nice choice on a new spar this is a difficult item
to refit in place of the original hinged unit, as it requires that the original
cut-out be filled in carefully. |
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Gooseneck Brackets for CD-4 Masts:
The CD-4 Mast is commonly used with the CD-3 Boom.
A variety of Brackets are listed below that fit it, as well as some other common Booms.
Custom Brackets to fit other Toggle configurations can be produced on special order.
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CD-4 Gooseneck Bracket: SP-097:
Cast Gooseneck Bracket is designed for use with the SP-097-1
solid SS square Gooseneck Toggle, using a 1/2" vertical pin. Bracket is (maximum) 3 1/2"
high x 4 1/4" wide and attaches to mast with (8) 1/4" RH machine screws.
Cast in 356 Aluminum with clear anodized finish.
Please NOTE: A variety of other Gooseneck and Vang Plates are available to fit the CD-4
mast section and accommodate different Toggle configurations. Please specify.
Toggle, SP-097-1, and Pin are not included, but are shown here for clarity.
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Vertical Pin Ass'y for Gooseneck Bracket: CP8-104A:
Clevis Pin for attachment of SP-097 Gooseneck Bracket to
SP-097-1 Gooseneck Toggle is 1/2" x 3 1/4" long.
Assembly includes (4) nylon bearing washers and cotter pin. 2L,2S
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Reef Hook/Tack Ass'y w/ 1/2" Vertical Bolt: RR 54-B8-4A:
Heavy-duty Stainless Steel Reef Hook/Tack Assembly incorporates 1/2" Vertical Gooseneck
Bolt. Dual Reef Hooks are formed from 5/16" rod, Assembly is (maximum) 4 5/8" wide x
7" high, and includes 5/16" SS Tack Shackle. Bolt is 4 1/4" long for use with Gooseneck
Brackets and slides with a 1/2" Vertical Pin hole and a maximum 3 1/2" bracket height.
This item is also available on a custom basis with other bolt lengths, please specify.
As used on a variety of Bristols, Pearsons, and Sabres. |
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Gooseneck Toggle for 1/2" Pins: SP-097-1:
Solid SS 1" square Gooseneck Toggle is designed for use with the SP-097
cast Gooseneck Bracket. It accommodates 1/2" vertical and horizontal pins.
Toggle is 1" square x 2 1/2" long, pin holes are on 1 1/2" centers. |
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CD-4 Gooseneck Bracket - Special: SP-097-SS:
Special SS CD-4 Gooseneck Bracket is designed for a 7/8" solid SS square Toggle with
3/8" holes (SP-097-1X), and includes 3/8" vertical bolt. Attaches to
mast with (6) 1/4" RH machine screws. As used on Schaefer Masts. |
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Special Gooseneck Toggle for 3/8" Pins: SP-097-1X:
Solid SS 7/8" square Gooseneck Toggle is designed for use with the
SP-097-SS Special Gooseneck Bracket. It accommodates 3/8" vertical
and horizontal pins. Toggle is 7/8" square x 2" long, pin holes are on 1 3/16" centers.
As used with Schaefer Masts and Booms. ** |
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CD-4 SS Gooseneck Bracket - Special: SP-097-SK:
Special SS CD-4 Gooseneck Bracket is designed for use with the Kenyon K-10345
gooseneck toggle/tack assembly and Kenyon Booms. Welded SS bracket
takes a 3/8" vertical Pin and has clearance for a 1 1/2" toggle.
Base is 4" vertical x approximately 3" wide, and attaches to the mast with (6) 1/4"
RH fasteners. Used with Kenyon E, 3550, and 3756 Booms
(See Kenyon Booms),
can also be used as Vang Bracket with addition of
K-10963 Vang
Toggle.
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CD-4 SS Gooseneck Bracket - Special: SP-097-SRR:
Special Heavy Duty Stainless Steel CD-4 Gooseneck Bracket for use with Rig-Rite and
other Booms using Gooseneck Toggles with a 1/2" Pin. Welded SS bracket
takes a 1/2" vertical Pin and has clearance for up to a 2 1/2" Toggle.
Base is 4" vertical x approximately 3 1/4" wide, and attaches to the mast with
(6) 1/4" RH fasteners. Designed for use with
Rig-Rite #6 and
Rig-Rite #7 Booms and
commonly used with SS Reef Hook/Tack Assembly, RR 54-B8-4A, and cast
Toggle, RR-45-88C, below. Also fits a wide variety of other
Gooseneck Toggles with a 1/2" Pin,
and can also be used as Vang Bracket with addition of an appropriate Vang Toggle.
9MGB1
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Reef Hook/Tack Ass'y w/ 1/2" Vertical Bolt: RR 54-B8-4A:
Heavy-duty Stainless Steel Reef Hook/Tack Assembly incorporates 1/2" Vertical Gooseneck
Bolt. Dual Reef Hooks are formed from 5/16" rod, Assembly is (maximum) 4 5/8" wide x 7"
high, and includes 5/16" SS Tack Shackle. Bolt is 4 1/4" long for use with Gooseneck
Brackets and slides with a 1/2" Vertical Pin hole and a maximum 3 1/2" bracket height.
This item is also available on a custom basis with other bolt lengths, please specify.
As used on a variety of Bristols, Pearsons, and Sabres. |
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Aluminum Gooseneck Toggle - 2 5/16" High: RR 45-67C:
Cast Aluminum Gooseneck Toggle is 2 5/16" high and accommodates
1/2" vertical and horizontal pins. Black epoxy coated Toggle is 2 5/16"
high x 1 3/8" wide x 2 1/2" (maximum) long, pin holes are on 1 1/4" centers.
Toggle fits a variety of Mast Brackets and Gooseneck Slides designed for a 2 5/16"
Toggle with a 1/2" vertical pin. As used on Pearson, Bristol, Sabre and others.
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Cam Cleat Pad: SP-185:
Cast aluminum Pad is contoured to fit most Mast Sections and provides a flat, raised
surface for mounting a variety of Cam Cleats. Anodized Pad has 1/4" holes on 1 3/4"
centers, but can be drilled to fit other Cam Cleats. |
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CD-4 Winch Pad: SP-096:
Cast aluminum winch pad is 4 3/4" in diameter, and mounts on the mast centerline with
(4) 1/4" FH machine screws. Holes for the winch mounting screws are then drilled in
the winch pad and tapped in the mast. Unit fits a variety of Oval Mast Sections including
Hall Spars Sch 150, and RigRite #8. |
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Winch Plate: SP-096S:
Stainless Steel winch plate is 4 1/2" high, and mounts on the mast with (8) 1/4"
RH machine screws. The winch is bolted to the winch plate with screws and locknuts and
then attached to the mast. This system offers the advantage of being able to take the
winch off the mast before taking it apart, as well as greater flexibility in mounting
off of the centerline. |
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Vang Bracket for Rigid Vang - Special:
A variety of semi-custom Brackets, or Bracket/Toggle combinations are available to fit
rigid (or solid) vangs produced by a number of manufacturers. Please specify vang
manufacturer, model and size. |
Vang Bail - 3/8" x 4 1/8" wide: K-11325:
Forged SS Mast/Boom Bail made from 3/8" rod is designed to be attached with (1)
3/8" SS bolt and nut. Formed at 4 1/8" wide, width can be varied to fit larger
or smaller sections. Bail length, from bolt center, is 5 3/8". For use with CD-4 mast.
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Vang Bail Bolt Ass'y - 3/8" for CD-4: K-11325BA-5:
Vang Bail bolt assembly includes 3/8" SS bolt x 5", with locknut, and nylon washers to
prevent bail from damaging mast surface as it pivots. For use with K-11325
Bail on CD-4 mast.
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Electrical Access Plate: RR 72-99:
Electrical Access Plate is designed to allow access to internal electrical plugs above
the mast step, without having to unstep the mast. Saves much in frustration and money by
allowing you to check mast wiring connections with the mast up. SS Plate is 4 1/2" x
2" and is designed to cover a 3" x 1 1/4" vertical slot in the side of the
mast, just above the top of the mast step. Plate is slightly curved to fit a variety of
mast sections and attaches with (4) 1/4-20 RH machine screws (included). |
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Electrical Wire Slide: SP-E126:
Electrical Wire Slides - 10 Pack: SP-E126P:
Nylon slides fit internal electrical wire slide tracks in CD-4 mast
section. Slides are attached to wiring harness at 2-3 foot intervals
with tie wraps. Prevents wires from slapping, and from fouling internal
halyards. Molded Nylon slide is 3/4" long x 1/2" high x (maximum) 1/4" wide.
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CD-4 Mast Step, Deck-Mount: SP-616:
Aluminum Mast Step attaches to the deck with (4) 1/4" bolts. Features drainage channel
to prevent water build-up inside the mast. Cast in 356 Aluminum with clear anodized finish.
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CD-4 Mast Step, Keel-Mount: SP-616K:
Adjustable Keel-mounted Mast Step for CD-4 Mast attaches to the keel or keelson with (4)
3/8" bolts in external slots to allow for precise positioning without unstepping the
mast. Mast Step measures 9 7/8" (maximum) long x 5 1/4" wide. Allows for 1
3/4" fore and aft adjustment and features drainage channel to prevent water build-up
inside the mast. Cast in 356 Aluminum with clear anodized finish. |
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Special Mast Plug for Sabre 28: RR 8M-S28-SP:
Special Mast Plug as used on early Sabre 28, but modified to fit CD-4 Mast Section. Mast
Plug fastens to bottom of Mast and has recess to sit on pinion protruding from special
Sabre 28 Deck Plate, allowing complete (minor) articulation of the mast bottom. Anodized
cast aluminum Mast Plug is (maximum) 6" long x 4" wide, and fastens to Mast with
(2) 1/4" RH screws. Original Sabre 28 Deck Plate (RR-8MS28DP)
is available on Special Order. |
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SS Tabernacle Ass'y: RR 8M-SST:
Heavy duty SS Tabernacle Assembly used with Spartan CD-4 and similar size Mast
Sections. Mast pivots on a single 5/8" bolt, aft side of mast is cut on a
simple radius (for Masts hinging aft). For constant usage (or thin walled
Masts) we recommend welding in a 5/8" ID Aluminum compression Tube. Formed
SS Channel with Triangular sides is 7 3/4" long x 4 1/2" wide x 3/16" thick,
Channel is 4 1/8" ID. Unit attaches to Deck w/ (4) 1/4" FH bolts. Requires
5/8" hole in Mast and aft side cutaway, 5/8" Pin is centered at 3 1/2" from base.
Suitable for Masts up to 4 1/8" (104mm) wide.
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