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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

MetalMast Round Booms
MetalMast Round Boom Sections date to the early 1960's when Roller Reefing Booms were the state of the art. They were common on all production Yachts of the era, including those by Pearson, Tartan, Bristol and numerous smaller builders.

Listed below are Round Boom Sections originally produced by MetalMast, and Round Boom Components made by MetalMast, Pearson, and others.

If a part you need is not listed on-site, please forward a sketch or photo of the part with measurements and full details including which Boom Section the part attaches to. If you unable to determine which Boom Section you have from the details given on-site, we will require a tracing of the Boom Section with measurements.
 
MetalMast Round Boom Sections & Parts
Please Note that Round Booms of the same size as those listed here, but with different Track details and configurations were produced at various times by MetalMast, Pearson, and others. Except for the Tracks, most items are interchangeable on Booms of the same size.
 
MetalMast MM-RB300 Boom Section
Measurements: (OD) 3.00"
Wall Thickness: .090"
Weight/ft.: 1.29 lbs.
Moments of inertia: Ixx = 0.", Iyy = 0."
Circumference: 9.42"
Sail slides: 3/4" flat slides (A006M)
OR depending on which side is up,
Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope
Standard lengths:
Common Usage: Shannon 28 Staysail Boom;
 		  
MetalMast MM-RB375 Boom Section
Measurements: (OD) 3.75"
Wall Thickness: .120"
Weight/ft.: 1.84 lbs.
Moments of inertia: Ixx = ", Iyy = "
Circumference: 11.75"
Sail slides: 3/4" flat slides (A006M) Top & Bottom
Standard lengths:
Common Usage:
 
MetalMast MM-RB450 Boom Section
Measurements: (OD) 4.50"
Wall Thickness: ."
Weight/ft.: 0. lbs.
Moments of inertia: Ixx = ", Iyy = "
Circumference: 14.12"
Sail slides:
Standard lengths:
Common Usage:
 		  
MetalMast MM-RB550 Boom Section
Measurements: (OD) 5.50"
Wall Thickness: .150"
Weight/ft.: 3.59 lbs.
Moments of inertia: Ixx = ", Iyy = "
Circumference: 17.10"
Sail slides: 15/16" flat slides (A008M) Top & Bottom
Standard lengths:
Common Usage:
 

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