Kenyon 5072 Boom Section

Kenyon Spars 5072 Boom Measurements (outside): 7.40" x 5.08" (188mm x 129mm) Wall Thickness: .156" Weight/ft.: 3.9 lbs. Moments of inertia: Ixx = 21.3", Iyy = 11.5" Circumference: 20 9/16" Sail slides: 15/16" flat slides (A008M) Alloy: 6061-T6 Standard Boom Lengths: 15'2", 24' Common Boom usage: Alajuela 48; Celestial 48K* (main), 46K (main); Freedom 39; Freya 39; Golden Wave 42, 48; Hans Christian 43C, 48; Nautical 60K (main); Pan Oceanic 46; Pearson 530, 530K (main); Roberts 57C; See Also: Kenyon Spars 5072 Mast*

Kenyon 5072 Boom Section 5072 Boom Section - Clear Anodized: K-X5072CA-___: 5072 Boom Section - Raw: K-X5072R-___: Kenyon 5072 Section Boom 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 sail entrance or other components if necessary, painted finishes and other lengths are available on special order, Please specify. If you require a complete Boom Assembly, you can select from components below and contact us with specifications.

Kenyon 5072 Boom Hardware Listed below are parts specific to the Kenyon 5072 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 5072 Boom Components not listed here please contact us with details. 5072 Internal Gooseneck Assemblies 5072 Outhaul Assembly 5072 Standard Boom Accessories

5072 Standard Gooseneck Assemblies

	Gooseneck/Outhaul Sheave for 5072 Boom: K-10556: Lightweight cast anodized aluminum sheave with integral bronze bushing is 3 3/4" OD x 3/4" wide x 1/2" ID. With wire/rope V-groove for up to 5/8" line and 1/4" wire, unit features recessed walls to minimize weight.
Gooseneck Toggle/Tack w/ Reef Hooks - 1/2": K-10702A: Used with the Kenyon 5072 Boom, this combination Toggle/Tack/Reef Hook Assembly features two reef hooks and includes 1/2" tack fastpin, K-10718. Takes 1/2" vertical pin, and 5/8" horizontal pin. Two 7/16" reef hooks allow for ease of reefing from either side of the boom. Toggle portion is 3" high x 1 3/8" wide with 1" between pin centers. Unit (excluding Reef Hooks) is 7 1/4" high x 1 3/8" wide x 3" long, Tack Pin is 3/4" forward of, and 4 3/4" higher than Horizontal pin. Attaches directly to any Kenyon and other SS Gooseneck Brackets designed for a 3" Toggle with 1/2" vertical pin.
	1/2" Vertical Gooseneck Pin for 3" Toggle: CP8-140K: Clevis pin is 1/2" diameter x 4 3/8" long. Used with 5072 boom, to attach the K-10702A Toggle/Tack/Reef Hook Assembly to the Gooseneck Bracket on the mast.
	Tack Fastpin for 5072 Boom: K-10718: SS Fastpin is 1/2" diameter x 1 1/2" long. Used in K-10702 Toggle/Tack/Reef Hook Assemblies. FP-8-48
Gooseneck Toggle/Tack w/ Reef Hooks - 5/8": K-10702LA: Used with the Kenyon 5072 Boom, this combination Toggle/Tack/Reef Hook Assembly features two reef hooks and includes 1/2" tack fastpin, *K-10718.* Takes *5/8" vertical and* 5/8" horizontal pins. Two 7/16" reef hooks allow for ease of reefing from either side of the boom. Toggle portion is 3" high x 1 3/8" wide with 1" between pin centers. Unit (excluding Reef Hooks) is 7 1/4" high x 1 3/8" wide x 3" long, Tack Pin is 3/4" forward of, and 4 3/4" higher than Horizontal pin. Attaches directly to any Kenyon and other SS Gooseneck Brackets designed for a 3" Toggle with 5/8" vertical pin. Identical to K-10702A**, above, but with hole for 5/8" vertical Pin.
	5/8" Vertical Gooseneck Pin for 3" Toggle: CP10-140K: Clevis pin is 5/8" diameter x 4 3/8" long. Used with 5072 boom, to attach the K-10702LA Toggle/Tack/Reef Hook Assembly to the Gooseneck Bracket on the mast.
	Tack Fastpin for 5072 Boom: K-10718: SS Fastpin is 1/2" diameter x 1 1/2" long. Used in K-10702 Toggle/Tack/Reef Hook Assemblies. FP8-48

5072 Standard Outhaul Assembly
5072 Outhaul Ass'y: K-10701A: Heavy-duty cast aluminum 4-sheave outhaul fitting for 5072 boom. Sheave configuration (2 centerline, 2 outboard) provides a variety of options and includes 5/8" clevis pin for topping lift attachment. Uses 3 3/4" aluminum sheaves, K-10556, for up to 5/16" wire or 5/8" line, riding on press fit knurled axles.
	Gooseneck/Outhaul Sheave for 5072 Boom: K-10556: Lightweight cast anodized aluminum sheave with integral bronze bushing is 3 3/4" OD x 3/4" wide x 1/2" ID. With wire/rope V-groove for up to 5/8" line and 1/4" wire, unit features recessed walls to minimize weight.
	Knurled Axle for 5072 Outhaul Sheave: K-10707S: SS knurled Sheave Axle pin used for Outhaul (forward) Sheave is 1/2" diameter x 3 1/4" long.
	Knurled Axle for 5072 Reef Sheaves: K-10708L: SS knurled Sheave Axle pin used for Reef and Topping Lift (aft) Sheaves is 1/2" diameter x 4 3/4" long.
	Clevis Pin for 5072 Outhaul Casting: CP10-42M: SS clevis pin is 5/8" diameter x 1 5/16" grip length.

5072 Standard Boom Accessories
*Boom Bail - 1/2" x 5 1/4" wide: K-11066:* Heavy SS Boom Bail made from 1/2" rod is designed to be attached with (1) 1/2" SS bolt and nut. Formed at 5 1/4" wide, width can be varied to fit larger or smaller sections. Bail length, from bolt center, is 5 1/2". For use with 5072 boom.
	Boom Bail Bolt Ass'y - 1/2" for 5072 Boom: K-11066BA: Boom Bail bolt assembly includes 1/2" SS bolt x 6 1/2", with locknut and nylon washers to prevent bail from damaging boom surface as it pivots.
Internal Boom Bail: K-11682HD: Heavy 1/2" SS bail is welded to a SS plate that fits *inside* of the boom. Unit is mounted inside the boom, where bail protrudes through a 1/2" x 2 1/2" slot. Plate measures 7" long x 1 1/2" wide x 1/4" thick and has welded nuts for (4) 5/16-18 screws on 3 1/2" and 6" centers. Used on Kenyon 5072 and similar Boom Sections. #?P530
Weld-in Boom Vang Lug for 1/2" Pin: 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.
Outhaul Slide for 7/8" Internal Track: K-11071: SS Outhaul Slide features 1/2" hole for attachment of outhaul pennant and a 7/16" slot for use with a D-shackle to attach the tack of the sail. Slide is (maximum) 3 1/2" long x 1 3/8" high. For 5072 and other Boom sections with 7/8" Internal Flat Track. Also, see other Outhaul Slide Assemblies for 7/8" Internal Track Booms.
*Outhaul Slide for 1 1/4" T-track: K-11172:* This Heavy-duty SS Outhaul Slide was designed for use on larger yachts. Investment cast SS construction provides high strength at a minimum weight. The toggle allows for 2 clew positions with a 1/2" pin and has 1" inside clearance for extra large clew rings. Slide features 3/8" pins for toggle and outhaul pennant attachment. Captive plastic liners (K-11175) allow unit to slide freely on US standard 1 1/4" x 3/16" T-track. Slide is 4 1/2" long x 1 11/16" wide x (maximum) 4 5/16" high. Suitable for use on a variety of yachts from 35 to 60 feet. Also, see other Outhaul Slides for Booms with an Add-on Track.
	*Liners for K-11172 Outhaul Slide: K-11175P:* Replacement Liners for K-11172 Outhaul Slide. Polyethylene Slide Liners are 4 1/4" long. K-11175P consists of 2 pieces.
*Winch Pad for 5072: K-10646:* Black Urethane Winch Pad is 4 13/16" diameter, and molded to fit on centerline of 5072 section. Pad insulates winch from spar wall and properly seats it for mounting. Pad is attached to boom with 1 screw, clearance holes for screws to mount winch are then drilled through pad, winch mounting holes are drilled and tapped in spar wall.

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