Spars, Rigging, and Hardware for Sailboats

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Kenyon Spars 3656 Custom Boom Section


Kenyon Spars 3656 Custom Boom Section
Measurements (outside): 5.60" x 3.60" (142mm x 92mm)
Wall Thickness: .110"
Weight/ft.: 2.17lbs.
Moments of inertia: Ixx = 7.3", Iyy = 2.9"
Circumference: 15 5/16"
Alloy: 6061-T6
Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope
Standard Boom Lengths: 16' 10"*
Common Boom usage: Freedom 29, 33 Mizzen, 39 Mizzen & Fore Boom; J/33*, J/35*, J/36*; Schock 35*; Soverel 33*;

Kenyon 3656 Custom Boom Section
The Kenyon 3656 Mast Section is used for Booms on a narrow range of racing yachts. End fittings are usually welded into the Boom Tube, as a result some components are non-replaceable. Complete Booms (and End fittings) are available on a Custom basis. Standard components and common Custom configurations are listed below.

3656 Boom Section - Clear Anodized: K-X3656CA-___:
Kenyon 3656 Section Boom Tube is stocked in a variety of lengths (listed above) fully anodized, it can also be cut to shorter lengths. To order, specify length.

 

3656 Custom Boom Assembly: K-3656BA-___:
Kenyon 3656 Booms are available on a Custom basis. Contact us with specifications and boat details for a quote. Standard components and common Custom configurations are listed below.

 

E35503756_boom.gif (9278 bytes)

Kenyon 3656 Boom Hardware
Listed below are parts specific to the Kenyon 3656 Boom Section. For more generic parts, see Kenyon Exit Plates and other categories listed under Kenyon Spar Parts. There are many parts for specific configurations that are not listed here. If you require 3656 Boom Components not listed here please contact us with details.

3656 Internal Gooseneck Assemblies

3656 Internal Outhaul Assemblies

3656 Standard Boom Accessories
 


3656 Internal Gooseneck Assemblies
Kenyon Internal Gooseneck Assemblies have been produced in several different Custom and semi-Custom configurations, the most common are listed below.
 
J/35 Style Custom Gooseneck Assembly: K-11491:
Custom aluminum gooseneck fitting is welded into long cut-out in Boom end, and uses the K-10345A Gooseneck Toggle/Tack Assembly with Reef Hooks, below, to attach to the Mast Bracket. Gooseneck assembly incorporates provisions for internal outhaul and 2 internal reef lines up to 1/2" diameter. Assembly uses (3) Aluminum Sheaves, K-11326; a round Cam Stopper, K-11328, for the outhaul line; (2) K-11129-2 Axle Pins for Sheaves and Cam Stopper; and a K-10680-1 Axle Pin for the Outhaul tackle dead end. See also, J/35 Boom and Components.

 

2" Aluminum Sheave w/ Integral Bronze Bushing: K-11326:
Anodized Aluminum Sheave with integral Oilite Bronze bushing. Sheave is 2" OD x 37/64" (.575") wide x 1/2" ID. With wire/rope V-groove. s

 

Gooseneck Cam Stopper - 3" Round: K-11328:
Round Gooseneck Cam Stopper is 3" OD x 5/8" wide with 1/2" hole off center hole, has knurled outer edge. As used in a variety of Custom Goosenecks.

 

1/2" Sheave Axle Pin: K-11129-2:
SS Sheave Axle Pin has thin stem welded to teardrop tab which attaches to mast with (1) #10 (3/16") screw. Axle Pin is 1/2" diameter, unit is (maximum) 3 1/2" long.

 

K-11129-2
3/8" Sheave Axle Pin: K-10680-1:
SS Sheave Axle Pin has thin stem welded to tab which attaches to mast with (1) #10 (3/16") screw. Axle Pin is 3/8" diameter, unit is (maximum) 2 1/2" long.

 

K-10680-1

3656 Internal Gooseneck Ass'y w/ Toggle/Tack fitting: K-43002-36A:

Cast aluminum gooseneck assembly incorporates provisions for internal outhaul and 2 internal reef lines. Outhaul line exits through aluminum sheave on centerline and runs along boom bottom to a cleat. Reef lines exit port and starboard running past lever action cams, over delrin sheaves, and down. SS cover plates keep lines on sheaves at all times. Includes SS combination Toggle/Tack/Reef Hook Assembly, K-10345A. Toggle attaches to any Kenyon gooseneck bracket designed for 1 1/2" toggle and 3/8" vertical pin. Vertical pin, K-CP6-76, is not included. Distance from vertical Toggle Pin to boom tube is 5 1/2". Parts for 3656 Internal Gooseneck Assembly.

 

K-43001A-249f.jpg (4127 bytes)
3656 Internal Gooseneck Assembly: K-43002-36:
As K-43002-36A, above, but without SS combination Toggle/Tack/Reef Hook Assembly, K-10345A. Distance from horizontal Pin hole to boom tube is 4 1/2". Parts for 3656 Internal Gooseneck Assembly.

 

K-43001
3656 Internal Gooseneck Assembly w/o Cams: K-43002-36NC:
As K-43002-36, above, but with SS spacers in place of the reef cams. For use where reef lines are led down to the deck and cleated aft on the cabin top. Parts for 3656 Internal Gooseneck Assembly.

 

K-43001-276f.jpg (20104 bytes)
Gooseneck Toggle/Tack Assembly w/ Reef Hooks: K-10345A:
Used with a variety of Kenyon goosenecks, this combination Toggle/Tack/Reef Hook Assembly features 3 tack positions and includes 3/8" tack fastpin K-10557. Takes 3/8" vertical and horizontal pins. Two reef hooks allow for ease of reefing from either side of the boom. Toggle portion is 1 1/2" high x 7/8" wide with 1" between pin centers. Unit (excluding Reef Hooks) is 4" high x 7/8" wide x 2 1/4" long. Attaches directly to any of the Kenyon SS Gooseneck Brackets designed for a 1 1/2" Toggle with 3/8" vertical pin, K-CP6-76.

 

K-10345A

 

Tack Fastpin for 1 1/2" Toggle: K-10557 (FP-6-32):
SS Fastpin is 3/8" diameter x 1" long. Used in 1 1/2" Toggle/Tack/Reef Hook Assembly K-10345A.

 

3/8" Vertical Gooseneck Pin for 1 1/2" Toggle: K-CP6-76:
Clevis pin is 3/8" diameter x 2 3/8" long. Used with a variety of Kenyon goosenecks, to attach the K-10345A Toggle/Tack/Reef Hook Assembly to the Gooseneck Bracket on the mast.

 

Long Gooseneck Toggle/Tack Ass'y w/ Reef Hooks: K-10345AL:
As K-10345A, above, but modified to increase the Tack Setback by 1". Greater clearance at the vertical Pin also allows for use with some Aluminum Gooseneck Brackets and Slides not compatible with the standard unit. Used with the Kenyon E-section, 3350, 3550, and 3756 Internal Goosenecks, this combination Toggle/Tack/Reef Hook Assembly features 3 tack positions and includes 3/8" tack fastpin, K-10557. Takes 3/8" vertical pin and 3/8" horizontal pin. Two 5/16" reef hooks allow for ease of reefing from either side of the boom. Toggle portion is 1 1/2" high x 7/8" wide with 2" between vertical and horizontal pin centers. Unit (excluding Reef Hooks) is 4" high x 7/8" wide x 3 1/4" long. Toggle fits all Kenyon Mast Brackets and a variety of Gooseneck Slides designed for a 1 1/2" Toggle with a 3/8" vertical pin.

 

K-10345AL
Double Reef Cam Conversion Kit for 3656: K-11443:
Cam Conversion Kit for 3656 Gooseneck contains all Reef Line components included in the K-43002-36 Assemblies, above. Kit includes Cam levers, adjustable friction washers, reef Sheaves, SS spacers, Cover plates, bolts and locknuts. Individual components are listed separately, See Parts for 3656 Internal Gooseneck Assembly.

 

K-11443
SS Gooseneck Slide for 1 1/4" x 3/16" Flat Track & 1 1/2" Toggle: K-10430M:
Special SS Gooseneck Slide specially designed for use with Kenyon K-10345-series Gooseneck Toggle/Tack Assemblies. Slide fits 1 1/4" x 3/16" SS Flat Track (and Kenyon 1 1/4" Gooseneck Track, as well as standard 1 1/4" aluminum T-Track). SS Gooseneck Slide is 4" high x (maximum) 1 1/2" wide and fits most 1 1/2" Toggles using a 3/8" vertical pin or bolt. Slide has heavy welded SS ring for attachment of downhaul line or shackle. *

 


3656 Internal Outhaul Assemblies
J/35 Style Custom Outhaul Assembly: K-11497:
Custom aluminum outhaul fitting is welded into long cut-out in Boom end, outhaul assembly incorporates provisions for internal outhaul, topping lift, and 2 internal reef lines up to 1/2" diameter. Assembly uses Aluminum Sheaves including K-198-10AB8 (outhaul), K-198-14AB8 (topping lift), and (2) K-11327 Reef Sheaves, and (2) K-11129-1 Sheave Axle Pins and a K-10680-1 Axle Pin for the Topping Lift dead end. Unit provides platform for Outhaul Car Track, Kenyon 3/4" I-Beam Track with 8-wheel Car (KT-4515) is normally provided. See also, J/35 Boom and Components.

 

 
3656 Internal Outhaul Tackle, 4-1: K-90231M:
Internal Outhaul Tackle for use with 3656 Boom provides a 4-1 purchase. Block and Tackle assembly includes 25' of 5/16" line and 13' of 1/8" wire spliced to the Blocks. Becket block attaches to bolt at forward end of boom, line exits through centerline Gooseneck sheave, wire exits through centerline sheave in outhaul assembly. Wire length is suitable for longest standard length boom, but must be cut shorter in most applications. Includes fiddle block, single block w/ becket, spliced line, wire, and loose captive-pin Clew shackle w/ thimble & nicopress. An 1/8" Nicopress Tool is required for installation. 05

 

3656 Internal Outhaul Tackle, 4-1, Long: K-90231L:
Internal Outhaul Tackle for use with 3656 Boom is as K-90231M, above, but includes longer line (40') for applications where Outhaul control is led aft to cockpit.

 


3656 Standard Boom Accessories
Internal Boom Bail: K-11428:
Heavy 5/16" SS bail is welded to a SS plate formed to fit the inside of the boom. Unit is mounted inside the boom, where bail protrudes through a 5/16" x 1 1/2" slot, and is held in place with (2) 3/16" SS rivets on 3 1/4" centers. Curved plate measures 4" long x 1 3/8" wide.

 

K-11428

Boom Bail - 3/8" x 4" wide: K-11325:
Heavy SS Boom Bail made from 3/8" rod is designed to be attached with (1) 3/8" SS bolt and nut. Formed at 4" wide, width can be varied to fit larger or smaller sections. Bail length, from bolt center, is 5".

 

Boom Bail Bolt Assembly - 3/8" for 3656 Boom: K-11325BA:
Boom Bail bolt assembly includes 3/8" SS bolt x 5", with locknut and nylon washers to prevent bail from damaging boom surface as it pivots.

 

Heavy-duty Weld-in Vang Tab: K-11700L:
Heavy-duty Aluminum Boom Vang Attachment Lug is welded into the Boom for attachment of Solid (hard) Vangs and Struts with a 1/2" Pin. Vang Lug slides into Boom, drops through a 1/2" wide x 8" long slot, and is welded in place from the outside. Lug is much longer than slot it fits in to provide stiffening and reinforcement in this high-stress area. Vang Lug is cut from 6061-T6 Plate and is (maximum) 10 1/2" long x 1/2" wide x 2 7/8" high, Lug projects approximately 1 7/8" from underside of Boom when installed. In addition to 1/2" attachment hole, a 3/8" hole is provided for a shackle to attach a preventer. Fits Most Boom Vangs with a 1/2" Pin.

 

K-11700L

 

 

Outhaul Slide Assembly for 1/2" Boltrope Groove: Sch 95-57X:
Heavy-duty Outhaul Slide Assembly features channel with 2-position clew attachment using 5/16" clevis pin, and a welded SS Eye for attachment of Outhaul pennant or Block. Slide body is welded SS with a 9/16" ID channel for Clew and a heavy delrin liner to minimize friction. Slide is 3 3/4" long x 3/4" wide, and 2 3/4" (maximum) high. For Boom sections with a 1/2" or larger Boltrope groove. Also, see other Outhaul Slides for 1/2" Boltrope Groove.

 

Sch 95-57X 

 

Spar Cleat - 4" long: Ken D-10324:
Cast Aluminum Spar Cleat is a low-profile design with a narrow base suitable for use with line up to 3/8" diameter. Commonly used for Outhaul Line. Black Epoxy coated Cleat is 4" long, and fastens to spar with (2) 3/16" (#10) FH screws on 1 3/16" centers.

 

Spar Cleat - 5" long: Ken D-10325:*
Cast Aluminum Spar Cleat is a low-profile design with a narrow base suitable for use with line up to 1/2" diameter. Black Epoxy coated Cleat is 5" long, and fastens to spar with (2) 7/32" (#12) FH screws on 1 1/2" centers.

 

Clam Cleat w/ Fairlead & Curved Base: K-9116X:
Clam Cleat with fairlead is used in place of standard Spar Cleat for frequent Outhaul adjustment in racing applications. Best mounted forward of an eyestrap (K-226) with small block (Har 082, or equivalent). Suitable for use with 3/16"-5/16" (4-8mm) line, black plastic unit fastens with (2) #10 (3/16") x 3/4" FH Screws on 2 1/8" (55mm) centers. Unit measures 3 7/16" long x 7/8" wide (88x22mm). CL231 Midi

 

SS Eyestrap: K-226:
Small Stainless Steel Eyestrap is used for securing smaller items to boom. Attaches to Boom with (2) 3/16" (#10, 5mm) screws or rivets.

 

Single Bullet Block: Har 082:
Small single Bullet Block is used for the Outhaul line on the bottom of the Boom. Plastic Ball-Bearing Block has 1 1/8" OD Delrin Sheave suitable for use with line up to 5/16" diameter. Use with K-226 Eyestrap and K-9116X Clam Cleat, above.

 

Cheek Block w/ Curved Base: K-140X:
Cheek Block with curved base to fit Kenyon 3656 Boom. 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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