Spartan Spars CD-4.5 Mast Section |
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Spartan Spars CD-4.5
Measurements: (OD) 6.625" x 4.376"
Wall Thickness: variable with .156" min.
Weight/ft.: 3.83 lbs.
Moments of inertia: Ixx = 17.15", Iyy = 7.60"
Circumference: 18 1/8"
Alloy: 6061-T6
Standard Mast Lengths: 39', 45'10 1/2", 49'7"
Sail slides: 15/16" flat slides (A008M)
Internal Electrical slides: SP-E127
Common Mast usage: Cape Dory 270*, Cape Dory 31, Cape Dory 32, Cape Dory 33*; |
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| Spartan
CD-4.5 Mast Section
CD-4.5 Mast Section - Clear Anodized: SP-XCD4.5CA-___:
CD-4.5 Mast Section - Raw: SP-XCD4.5R-___:
Spartan CD-4.5 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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Standard Mast Hardware |
Listed below are parts specific to
the Spartan CD-4.5 Mast Section. All CD-4.5 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 specific configurations that are not listed here. If you require
CD-4.5 Section Mast Components not listed here please contact us with details.
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CD-4.5 Masthead: SP-500A (aluminum sheaves):
CD-4.5 Masthead: SP-500P (plastic sheaves):
Heavy-duty cast aluminum masthead assembly with 4 sheaves is designed to allow use of
external OR internal halyards. Includes SS toggles for headstay and backstay with
1/2" pins and a topping lift attachment pin. Cast in 356 Aluminum with clear anodized
finish. Optional spinnaker bail (SP-158-2) is available. |
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Masthead Spinnaker Bail: SP-158-2:
Heavy 3/8" SS bail is welded to a 3" x 2 1/2" flat plate which bolts to the
top of the masthead with (4) 1/4" RH machine screws and locknuts (included). Screw
hole spacing (to centers) is 2" fore and aft x 7/8" wide. Bail projects 1
3/4" forward of plate. Mounting requires drilling (4) 1/4" holes. |
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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-4.5 Spreader Base - Port: SP-502P:
CD-4.5 Spreader Base - Starboard: SP-502S:
Original Cast aluminum Spreader Base for CD 4.5 Mast Section fits flush with the mast
surface and attaches to the mast with (6) 1/4" RH screws. Cast aluminum spreader base
is designed for rigs with in-line spreaders. For use with 3 3/4" Airfoil Spreaders,
SP-512.
Cast in 356 Aluminum with clear anodized finish. |
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CD-4.5 Spreader Base w/ Tang Attachment - Port: SP-765P:
CD-4.5 Spreader Base w/ Tang Attachment - Starboard: SP-765S:
New-style Cast aluminum Spreader Base for CD 4.5 Mast Section fits flush with the mast
surface and attaches with (4) 1/4" FH screws and a 1/2" bolt. Unique and sleek
design allows for use of the same 1/2" bolt as an attachment point for a lower shroud
tang (SP-753K) which fits under the Spreader Base. Cast aluminum
spreader base is designed for rigs with in-line spreaders. For use with 3 3/4"
Airfoil Spreaders, SP-512. Cast in 356 Aluminum with clear anodized finish. |
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3 3/4" Airfoil Spreader Assembly: SP-512TA-___:
Welded, tapered, clear anodized Airfoil Spreader Assembly has an inboard OD of 3 3/4"
x 1 3/16" and has a cast twist-lock tip with slot for 5/16" (max.) diameter
upper shroud. Standard Lengths are 3' 1/2" and 3' 11 1/2", but finished
spreaders are available in any length. To order: Specify maximum length
from inboard end to shroud bearing surface, spreader base configuration, and finish. For
Components, See: Spartan SP-512 Spreader Section and Components. |
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Double Lower Shroud Clevis Tang Set w/ 1/2" Pins: SP-753K:
SS Double Lower Shroud Tang Set was designed for use with 4 Lower Shrouds up to
9/32" diameter using standard Marine Eyes. Set includes (2) Tangs (SP-753P&S)
w/ 1/2" Clevis Pins.
Double Tang is 6" long x 2 1/4" wide x .120" with (1) 3/4" mounting hole.
Pin centers are 3 1/8" (upper) and 4 1/4" (lower) from mounting hole and are 1 1/2" (diagonally) apart.
Mounting requires (1) 3/4" hole in each side of mast. Commonly used with SP-753BPA
Backing Plate Assembly with Flange Bushings, below.
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Backing Plate Ass'y w/ Flange Bushings: SP-753BPA:
Recommended for standard applications, the Assembly allows for attachment of SP-753
Tang Set with (2) 1/2" bolts. Includes (2) Tapered Bearing Plates (SP-11216-S1), and
(2) 3/4" OD Flange Bushings (SP-10455S). Mounting requires (1) 1/2" and (1) 3/4" hole
in each side of mast. Used with SP-765 and SP-164-1 Spreader Bases,
and in a variety of other applications.
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Tapered SS Bearing Plate w/ 3/4" hole: SP-11216-S1:
Tapered SS Bearing Plate has (1) 1/2" hole and (1) 3/4" hole for use with bolts
of those sizes, or with SS Flange Bushings (SP-10455S) and (2) 1/2" bolts. Tapered
Plate is 3 1/2" long x 1" wide (at top) x 2" wide (at bottom) x 3/32" (.098") thick, with (2) holes
on 1 3/4" centers, and is contoured for use with most Mast Sections.
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Flange Bushing – 3/4" OD x 1/2" ID: SP-10455S:
SS Flange Bushing is 3/4" OD x 1/2" ID. Used with a 1/2" bolt it
replaces a 3/4" bolt in Shroud Tang applications to achieve significant
weight reduction without any attendant reduction in bearing surface.
3/4" OD Flange Bushing is 3/4" long, Flange Head is 7/8" diameter x 1/8"
thick. XXP
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CD-4.5 Hinged Sailgate: SP-507:
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. Cast in
356 Aluminum with clear anodized finish. |
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Sailgate Stop: RR 73-98:
SS internal sliding gate stop assembly has spring plunger pin and slides in the mainsail
track. Slide is 7/8" wide x 3" 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. |
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| Although it adds a few inches to the 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. |
CD-4.5 Gooseneck Bracket: SP-504:
Cast aluminum Gooseneck Bracket Assembly is designed for use with the SP-175
cast bronze Toggle, and includes 1/2" vertical bolt with washers and locknut. Attaches to mast with (9)
1/4" FH screws. Cast in 356 Aluminum with a clear anodized finish.
Please Note: A variety of other Gooseneck Brackets are available to fit the CD-4.5 mast section and
accommodate different Toggle configurations. Please specify.
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Gooseneck Toggle/Tack Assembly - Bronze: SP-175:
Gooseneck Toggle/Tack Assembly - Chrome: SP-175C:
Cast Bronze Gooseneck Toggle/Tack Assembly features 2 Tack positions and includes
3/8" Tack fastpin (FP-6-48). Accommodates 1/2"
vertical and horizontal pins (on 1 7/8" centers), and has 1/4" hole for
the mounting of 2 reef hooks, SP-174-3. Toggle portion (in
front) is 2 7/8" high (1 1/8" high where it goes between Mast Bracket), x
7/8" wide at Horizontal pin hole, unit is (maximum) 5 5/8" high x 1 1/4"
wide. Designed for use with the Spartan CD-4.5 (SP-504), and
CD-5 (SP-174) cast Aluminum Gooseneck Brackets, and suitable for
use with CD-3.5 and CD-4 Boom, Standard Gooseneck Assemblies. |
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Gooseneck Toggle Reef Hook: SP-174-3:
This 3/8" diameter reef hook is designed to bolt to the SP-175
Gooseneck Toggle with the included 1/4" fasteners. Measures 3 1/4" long x 1 5/8" wide. |
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Winch Pad: SP-503:
Stainless Steel winch plate is 4 1/4" high, and mounts on the mast with (8) 1/4"
RH 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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Winch Pad: SP-508:
Stainless Steel winch plate is 5" high, and mounts on the mast with (8) 1/4" RH
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. Winch Pad is drilled for a Lewmar #8, but can be redrilled for other similarly
sized winches. |
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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. |
CD-4.5 Deck Collar Assembly: SP-505:
Cast aluminum, clear anodized 2-piece Deck Collar Assembly has tabs for 3/8" cross
pin designed to attach mast section to deck collar and absorb deck tension loads. Deck
Collar features large lip for mast boot taping, and includes clear anodized interior trim
ring, and 3/8" x 6 1/8" SS cross pin, SP-505P. Bolts
through deck with (6) 1/4" RH machine screws and locknuts. Collar is (maximum)
10" long x 7 3/4" wide, and requires deck cut-out (maximum) 8" long x 6" wide. |
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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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CD-4.5 Mast Step, Deck-Mount: SP-770:
Mast Step for CD-4.5 Mast Section fastens to deck or keelson with (4) 3/8" bolts.
Features 1 1/2" hole in the center for electrical wires, and a drainage channel to
prevent water build-up inside the mast. Base is (maximum) 7" long x 4 3/4" wide
and projects 2" into Mast. Cast in 356 Aluminum with clear anodized finish.
As used on Cape Dory 32. |
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CD-4.5 Mast Step, Keel-Mount: SP-506:
Mast Step for Spartan CD-4.5 Mast Section fastens to keel or keelson with (4) 3/8"
bolts in external adjustment slots to allow for precise positioning
without unstepping the mast. Features 1 1/2" hole in the center for electrical wires
and a drainage channel to prevent water build-up inside the mast. Mast Step is 8 1/8"
long x 6 3/4" wide, slots allow for 1" fore and aft adjustment. Slot centers are
5 1/2" athwartships, and 5 5/8" fore & aft. Cast in 356 Aluminum with clear
anodized finish. |
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Electrical Wire Slide: SP-E127:
Electrical Wire Slides - 10 Pack: SP-E127P:
Nylon slides fit internal electrical wire slide tracks in CD-3.5, 4.5, and CD-5 mast
sections. Slides are attached to wiring harness at 2-3 foot intervals with tie wraps.
Prevents wires from slapping, and from fouling internal halyards. Slide is 1" long. |
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