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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          Ordering/Questions

Rig-Rite SP450 Airfoil Spreader Section


Rig-Rite SP450 Airfoil Spreader Section
Measurements: 4.50" x 1.50" (114mm x 38mm)
Wall Thickness: .094"
Weight/ft.:  1.12 lbs.
Moments of inertia: Ixx = 1.30" Iyy = .228"
Alloy: 6061-T6
Stock Length: 15' 9"
Common Boat usage: C&C 29* & others; Cape Dory 36, 40; Hinterhoeller; Pearson 32, 10M, 36*, 365, 390, 40, 424; Tartan; Sound Spars; & others.
See also: Spartan SP-165 Spreader Section.
SP-165

 


SP450 Airfoil Spreader Section & Hardware
Rig-Rite SP450 Spreader Section is available in cut lengths, but is normally supplied as a welded, Tapered Spreader Assembly using a welded spreader tip, and sometimes including a welded Inboard End, for use with a variety of special Spreader Bases.

 

SP450 Spreader Section: RR SP450XR-____:
SP450 Spreader Extrusion is stocked in a raw aluminum finish and is available in lengths up to 14'. To order: specify length.

 

SP450 Tapered Spreader Assembly x 3' 9 1/4": SP165TA-45.25:
SP450 Tapered Spreader Ass'y x 52": SP165TA-52:
SP450 Tapered Spreader Ass'y - Custom Length: RR SP450TA-____:
Tapered SP450 Spreader Assembly uses a welded, cast aluminum spreader tip, RR SP450-2T, and an open inboard end for use with a variety of special Cast aluminum spreader bases. Standard Lengths are 3' 9 1/4" and 4' 4", 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.

 

SP450 Tapered Spreader Ass'y w/ Inboard End: RR SP450TAS-R___*:
Tapered SP450 Spreader Assembly uses a welded, cast aluminum spreader tip, RR SP450-2T, and one of the Inboard Ends listed below, for use with a variety of welded SS and aluminum spreader bases. Standard finish is raw aluminum, specify color if painted finish is required. To order: Specify maximum length from inboard end to shroud bearing surface, Inboard End, and finish.

 


SP450 Tapered Spreader Tip - Twist-Lock: RR SP450-2TL:
Special 'twist-lock' Spreader Tip for spreader tapered to 2 3/4", features slot for up to 3/8" shroud. Shroud is secured without seizing wire, by inserting it horizontally into Spreader Tip and then ‘twisting’ it to lie in line with the mast. Tip measures 2 3/4" x 1", and extends shroud seat 1/2" beyond spreader tube. Cast aluminum Spreader Tip has uncoated Aluminum finish for use in welded applications.   SP-165T

 

 
SP450 Tapered Spreader Tip - Slotted: SP-512TS:

Slotted Spreader Tip for spreader tapered to 1 3/4" features slot for up to 3/8" shroud. Shroud is secured with 3/16" FH screw. Tip measures 1 3/4" wide x 2 1/4" long x (maximum) 7/8" thick, and extends shroud seat 1 1/4" beyond spreader tube, portion inside spreader is 1 1/2" long. Cast aluminum Spreader Tip has uncoated Aluminum finish for use in welded applications. As used on a variety of C&C Yachts, Hinterhoeller Yachts and others, and used with other Spreader Sections.

 


SP450 Inboard Spreader End, Standard: K-11480-5:

Inboard Spreader End is used for masts with welded aluminum spreader bases. Aluminum spreader end is welded in a slot cut in SP450 Spreader. Tapered Aluminum plate is 3/8" thick x (maximum) 6 1/4" wide x 5 1/2" long, and features integral etch lines to line up with centerline and end of SP450 Spreader. Mounts to mast with (2) 3/8" holes on 4 3/4" centers, holes are 3/4" from end of plate. Plate has uncoated Aluminum finish.

 

K-11480-5
SP450 Inboard Spreader End - Special: K-11480-5SN:
Inboard Spreader End is used for masts with welded aluminum spreader bases. Aluminum spreader end is welded in a slot cut in SP450 Spreader. Tapered Aluminum plate is 3/8" thick x (maximum) 6 1/4" wide x 5 1/2" long, and features integral etch lines to line up with centerline and end of SP450 Spreader. Mounts to mast with (2) 3/8" holes on 4 1/4" centers, holes are 3/4" from end of plate. Plate has uncoated Aluminum finish.

 

SP450 Inboard Spreader End - Special, Large: K-11480-5SL:

Inboard Spreader End is used for masts with welded aluminum spreader bases. Aluminum spreader end is welded in a slot cut in SP450 Spreader. Tapered Aluminum plate is 3/8" thick x (maximum) 7 1/4" wide x 5" long, and features integral etch lines to line up with centerline and end of SP450 Spreader. Mounts to mast with (2) 1/2" holes on 5 3/4" centers, holes are 3/4" from end of plate. Plate has uncoated Aluminum finish. As used on Pearson 36, 40, 424, and others. SoundSpar

 


Spreader Bases for SP450 Spreaders
SP450 Spreaders are normally used with welded Inboard Spreader Ends (listed above) that fit between (2) horizontal tabs on welded SS Spreader Bases, or aluminum Spreader Base Plates welded to the mast. On some masts they are used without Inboard Ends, and fit over a special Cast aluminum Spreader Base. In ALL cases, Spreader Bases and Spreader Base Plates used with SP450 Spreaders are specific to individual Mast Sections and are listed under the Mast Sections that they attach to. See Spars by Spar Manufacturer.
 
CD-5 Spreader Base - Port: SP-164P:

CD-5 Spreader Base - Starboard: SP-164S:

Cast aluminum Spreader Base for CD-5 Mast Section fits flush with the mast surface and attaches with (6) 1/4" FH screws. Base is (maximum) 6 3/8" long x 3 1/4" high. Designed for rigs with in-line spreaders for use with 4 1/2" Airfoil Spreaders, SP-165. Cast in 356 Aluminum with clear anodized finish.

 

SP-164P
  Vertical Pin for SP-165 Spreader Brackets: SP-165P:
Clevis Pin for attachment of SP-165 Spreaders to any of the Cast Spreader Brackets listed here is 1/2" x 1 1/2" long. Includes cotter pin.

 

 
CD-5 Spreader Base w/ Tang Attachment - Port: SP-766P:
CD-5 Spreader Base w/ Tang Attachment - Starboard: SP-766S:
Cast aluminum Spreader Base for CD-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 Bearing Plate (SP-11216-S1), which fits under the Spreader Base. Commonly used with Double Lower Shroud Tang Set (SP-753K). Base is (maximum) 6 3/8" long x 3 1/2" high. Designed for rigs with in-line spreaders for use with 4 1/2" Airfoil Spreaders, SP-165. Cast in 356 Aluminum with clear anodized finish. Was SP-164-1.

 

 
Sound Spar 8755 / MM 8348T Spreader Base for SP-165, Port: SS 8755SBC-P:

Sound Spar 8755 / MM 8348T Spreader Base for SP-165, Starboard: SS 8755SBC-S:
Cast Aluminum Spreader Base used on Sound Spar 8755 Mast Section (8.75" x 5.50"), and on MetalMast 8348T (8.30" x 4.81") Teardrop Mast Section with SP-165 Spreaders. Spreader fits over male stud on Base, Teardrop shaped Base is 6" wide x 3 1/4" high. Normally attaches to Mast with (6) 1/4" RH screws, but due to mounting variations castings are supplied raw, without holes for fasteners. As used on Pearson 10M, 365, 386, and others.

 

 
C&C Spreader Base for SP-165, Port: CC SPB4-29P:

C&C Spreader Base for SP-165, Starboard: CC SPB4-29S:

Cast Aluminum Spreader Base used on C&C Masts with SP-165 Spreaders. Spreader fits over male stud on Base. Base is 5 1/4" wide x 3" high with deep curve to fit C&C Mast Sections. Attaches to Mast with (6) 1/4" RH screws. As used on C&C 29 and others.

 

 
SS Spreader Base w/ 3/8" Pin, Port Aft: SS 8755SBS-6PA:

SS Spreader Base w/ 3/8" Pin, Starboard Aft: SS 8755SBS-6SA:

Stainless Steel Spreader Bases used on Sound Spar 8755, and other Mast Sections, with SP-165, SP-512, and other Spreaders using a 1/4" or 5/16" thick Inboard Spreader End Plate, similar to K-11480-5SL, above. SS Rectangular Base is 2 1/2" high x 2 3/16" wide, and attaches to Mast with (4) 1/4" RH screws on 1 3/4" (vertical) x 1 1/2" (horizontal) centers. Spreader Inboard End is attached to Base with a 3/8" clevis pin (included). Bases are used in pairs, with a Port Aft and a Starboard Aft version on each side of the Mast. (Port Aft = Starboard Forward, Starboard Aft = Port Forward).

 

 
SS Spreader Base w/ 1/2" Pin, Port Aft: SS 8755SBS-8PA:
SS Spreader Base w/ 1/2" Pin, Starboard Aft: SS 8755SBS-8SA:

Stainless Steel Spreader Bases used on Sound Spar 8755, and other Mast Sections, with SP-165 and other Spreaders using the K-11480-5SL Inboard Spreader End, above. SS Base is 3" square and attaches to Mast with (4) 1/4" RH screws on 2 1/8" (vertical & horizontal) centers. Spreader Inboard End is attached to Base with a 1/2" clevis pin (included). Bases are used in pairs, with a Port Aft and a Starboard Aft version on each side of the Mast. (Port Aft = Starboard Forward, Starboard Aft = Port Forward). As used on Pearson 36, 40, 424, and others. P1184SA SS8755L

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