Sparcraft FB Booms

All Sparcraft FB Boom Sections are listed below, Parts and components are listed under the specific Boom Section they are used with. For complete Boom Assemblies, contact us with details. Click on individual Boom Sections, below, to see hardware commonly used with those Sections.

FB-36 Boom Section Measurements (OD): 2 13/16" x 2 1/16" (71.6mm x 52mm) Wall Thickness: .070" (1.8mm) Weight/ft.: .90 lbs. Weight/M: 1.34 kg Moments of inertia: Ixx = .77", Iyy = .36" Moments of inertia: Ixx = 32cm4, Iyy = 15cm4 Circumference: 8 5/8" (220mm) Sail slides: 3/8" round slugs (A017, A117) or 3/8" boltrope Lower Track: 24.5mm x 2.5mm (31/32" x 3/32") Alloy: 6005-T6 Standard Boom Lengths: 10' 4" (3.16M) Common Boom usage: Hunter 240; and many More.

FB-60 Boom Section Measurements (OD): 3 3/4" x 2 11/16" (95mm x 68mm) Wall Thickness: .082" (2.1mm) Weight/ft.: 1.40 lbs. Weight/M: 2.1 kg Moments of inertia: Ixx = 2.06", Iyy = 1.01" Moments of inertia: Ixx = 90cm4, Iyy = 42cm4 Circumference: 11 3/16" (284mm) Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Lower Track: 24.5mm x 2.5mm (31/32" x 3/32") Alloy: 6005-T6 Standard Lengths: 12' 5 1/2" (3.8M) Common Boom usage: Hunter 260; J/80; Seaward 26; and many More.

FB-125 Sparcraft Boom Measurements (OD): 4 5/16" x 3 1/8" (110mm x 80mm) Wall Thickness: .086" (2.2mm) Weight/ft.: 1.675 lbs. Weight/M: 2.5 kg Moments of inertia: Ixx = 3.96", Iyy = 1.68" Moments of inertia: Ixx = 165cm4, Iyy = 70cm4 Circumference: 13 3/16" (335mm) Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Lower Track: 30.5mm x 3.4mm (1 3/16" x 1/8") Alloy: 6005-T6 Standard Lengths: 13' 5 1/2" (4.1M) Common Boom usage: Catalina 270, 28F; J/92; Seaward 30, 32; and many More.


FB-220 Boom Measurements (OD): 5 1/8" x 3 7/8" (130mm x 98mm) Wall Thickness: .095" (2.4mm) Weight/ft.: 2.49 lbs. Weight/M: 3.72 kg Moments of inertia: Ixx = 8.16", Iyy = 3.44" Moments of inertia: Ixx = 340cm4, Iyy = 143cm4 Circumference: 15 7/8" (402mm) Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Lower Track: 30.5mm x 3.4mm (1 3/16" x 1/8") Alloy: 6005-T6 Standard Lengths: 15' 1" (4.6M) Common Boom usage: Beneteau Moorings 361, 362; Beneteau Oceanis 311, 321, 361, 373; C&C 99; Catalina 320, 34, 350, 36; Island Packet 320, 350; J/92S; and many More.

FB-550 Boom Measurements (OD): 6 5/16" x 3 7/8" (160mm x 98mm) Wall Thickness: .102" (2.6mm) Weight/ft.: 3.15 lbs. Weight/M: 4.70 kg Moments of inertia: Ixx = 14.90", Iyy = 4.80" Moments of inertia: Ixx = 620cm4, Iyy = 200cm4 Circumference: 18 3/16" (461mm) Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Lower Track: 31mm x 4.4mm (1 7/32" x 11/64") Alloy: 6005-T6 Standard Lengths: 17' 4 1/2" (5.3M), 20'* (6.1M) Common Boom usage: Beneteau First 36.7, Idylle 13.5; Dehler 36; Dufour 39, 41; *J/109; Tartan 3500; and many More.**


FB-810 Boom Measurements (OD): 7 1/2" x 4 3/4" (190mm x 121mm) Wall Thickness: .102" (2.6mm) Weight/ft.: 3.65 lbs. Weight/M: 5.44 kg Moments of inertia: Ixx = 24.03", Iyy = 8.65" Moments of inertia: Ixx = 1000cm4, Iyy = 360cm4 Circumference: 21 9/16" (548mm) Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Lower Track: 31mm x 4.8mm (1 7/32" x 3/16") Alloy: 6005-T6 Standard Lengths: 18' (5.48M) Common Boom usage: Beneteau 330; Catalina 380, 387; 400, 42.2; Tartan 3500, 3700; and many More.*

FB-1700 Boom Measurements (OD): 8 7/8" x 4 13/16" (225mm x 122mm) Wall Thickness: .110" (2.8mm) Weight/ft.: 4.66 lbs. Weight/M: 6.95 kg Moments of inertia: Ixx = 43.08", Iyy = 9.85" Moments of inertia: Ixx = 1793cm4, Iyy = 460cm4 Circumference: 24 1/4" (616mm) Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Lower Track: 31mm x 4.8mm (1 7/32" x 3/16") Alloy: 6005-T6 Standard Lengths: 22' 7 1/2" (6.9M) Common Boom usage: Beneteau Oceanis Moorings 510; Catalina 440, 470; Island Packet 45, 485; Tartan 4100; and many More.

FB-3400 Boom Measurements (OD): 10 7/8" x 5 1/8" (276mm x 130mm) Wall Thickness: .140" (3.6mm) Weight/ft.: 5.84 lbs. Weight/M: 8.71 kg Moments of inertia: Ixx = 78.81", Iyy = 17.42" Moments of inertia: Ixx = 3280cm4, Iyy = 725cm4 Circumference: 28 1/2" (724mm) Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Lower Track: 31mm x 4.8mm (1 7/32" x 3/16") Alloy: 6005-T6 Standard Lengths: 29' 6" (9M) Common Boom usage: Beneteau 57, Oceanis 523; Lagoon; Tartan; Tayana 64; and many More.*

Spars, Rigging, and Hardware for Sailboats