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Spars, Rigging, and Hardware for SailboatsRig-Rite, Inc. |
MetalMast Performance Mast Sections |
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Spars, Rigging, and Hardware for SailboatsRig-Rite, Inc. |
MetalMast Performance Mast Sections |
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| In over 50 years of production history MetalMast has used an incredible variety of
Mast types. MetalMast Mast Sections ranged from the first days of extruded Aluminum Masts, from
plain oval sections without any integral Track, to more advanced ovoid and Teardrop shapes where
they pioneered the use of integral tracks for sail slides and internal tracks for electrical wiring.
MetalMast Sail Slides are still the industry standard.
Except for some Round Boom Sections often used for
Roller Reefing, and the Reefaway Furling Mast, most all Mast Sections have been used for
Boom production as well. In the mid-1980's MetalMast began to replace its Traditional Mast Sections with the MetalMast Performance Mast series, largely designed by N.A. Jerry Milgram of M.I.T., and America's Cup fame. Currently MetalMast Masts are fabricated on a custom basis using the MetalMast Performance Mast Sections listed below. For a quote on a New Mast, please contact us with measurements and full details. For Parts for older Mast Sections, See: Traditional Mast Sections. For Mainsail Gates and Stops, See: MetalMast Mainsail Gates and Stops. For Spreaders, See: MetalMast Spreaders and Parts.
For General Mast Parts, including
Sheaves,
Masthead Spinnaker Bails,
Spinnaker Halyard Blocks,
Masthead & Forestay Toggles,
Tangs & Rigging Attachments,
Exit Blocks,
Exit Plates,
Spar Cleats,
Gooseneck Slides,
Mast Boots,
Mast Wedges,
Mast Stairs, and
Electrical Components,
See General Spar Parts by
Category on the Spars Main Page,
as MetalMast parts are listed in almost every category. For Mast Parts specific to a particular Mast Section, you will need to identify the specific Mast Section. See MetalMast Performance Mast Sections, below, or MetalMast Traditional Mast Sections to help you identify your Mast. If you unable to determine which Mast Section you have from the details given on-site, we will require a tracing of the Mast Section with measurements. 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 Mast
Section the part attaches to, and Boat type including year of manufacture. |
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MetalMast Performance Mast
Sections
Please note that most all Mast Sections have been used for Booms as well. |
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| MetalMast #5 Mast Section Measurements: (OD) 3.75" x 2.25" (95mm x 57mm) 3723 Wall Thickness: .100" Weight/ft.: 1.3 lbs. Moments of inertia: Ixx = 1.5", Iyy = .63" Circumference: 9 5/8" Alloy: 6063-T6 Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Standard Mast Lengths: 22'7", 25'4", 30' Common Mast usage: Bristol Corinthian 19; Cape Dory Typhoon; Common Boom usage: International 210;
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| MetalMast #6 Mast Section Measurements: (OD) 4.50" x 2.75" (114mm x 70mm) 4528 Wall Thickness: .105" - .110"r Weight/ft.: 1.5 lbs. Moments of inertia: Ixx = 2.7", Iyy = 1.2" Circumference: 11 1/2" Alloy: 6063-T6 Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Standard Mast Lengths: 26'6", 30', 33' Common Mast usage: International 210;
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| MetalMast 4127 Mast Section Measurements: (OD) 4.10" x 2.70" (104mm x 69mm) xv Wall Thickness (minimum): .095" - .145" Weight/ft.: 1.46 lbs. Weight/m.: 2.18kg. Moments of inertia: Ixx = 2.52", Iyy = 1.13" Moments of inertia: Ixx = 105mm4, Iyy = 47mm4 Circumference: 11 1/2" Alloy: 6063-T6 Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Internal Electrical slides: None Standard Mast Lengths: 30' Common Mast usage: Common Boom usage: Bridges Point 24;
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| MetalMast 5033 Mast Section Measurements: (OD) 5.00" x 3.30" (127mm x 84mm) w Wall Thickness (minimum): .085" - .120" Weight/ft.: 1.70 lbs. Weight/m.: 2.54kg. Moments of inertia: Ixx = 4.51", Iyy = 2.01" Moments of inertia: Ixx = 198mm4, Iyy = 84mm4 Circumference: 14 1/4" Alloy: 6061-T6 Sail slides: 1/2" round slugs (A018, A118) or 1/2" boltrope Internal Electrical slides: K-10908 Standard Mast Lengths: 39' (66.3 lbs.) Common Mast usage: Alerion 26; Bridges Point 24; Maine Cat 22; Common Boom usage: Alerion 26;
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| MetalMast 5838 Mast Section Measurements: (OD) 5.80" x 3.80" (147mm x 97mm) w Wall Thickness (minimum): .095" - .122" Weight/ft.: 2.24 lbs. Weight/m.: 3.34kg. Moments of inertia: Ixx = 8.61", Iyy = 3.64" Moments of inertia: Ixx = 358mm4, Iyy = 151mm4 Circumference: 16 11/16" Alloy: 6061-T6 Sail slides: 3/4" flat slides - MM #6 (A006M) or 3/16" boltrope Internal Electrical slides**: 3/4" flat slides - MM #6 (A006M) Standard lengths: 50' (112 lbs.) Common Mast usage: Alerion Express*; Bristol 27*; Cheoy Lee 38K* (mizzen); Elite 30; Ericson 27*; Island Trader 38K* (mizzen); Pearson 26*, 27*;
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| MetalMast 6342 Mast Section Measurements: (OD) 6.30" x 4.20" (160mm x 107mm) w Wall Thickness (minimum): .102" - .140" Weight/ft.: 2.52 lbs. Weight/m.: 3.76kg. Moments of inertia: Ixx = 11.27", Iyy = 4.92" Moments of inertia: Ixx = 469mm4, Iyy = 205mm4 Circumference: 18 1/8" Alloy: 6061-T6 Sail slides: 3/4" flat slides - MM #6 (A006M) Internal Electrical slides*: 7/8" sailtrack slides, Mer 404-7 Standard Mast Lengths: Common Mast usage: Cal 28*; Sabre 28*; Tartan 3000*; T-Gull 25;
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| MetalMast 6844 Mast Section Measurements: (OD) 6.80" x 4.40" (173mm x 112mm) w Wall Thickness (minimum): .118" - .145" Weight/ft.: 3.08 lbs. Weight/m.: 4.60kg. Moments of inertia: Ixx = 15.45", Iyy = 6.35" Moments of inertia: Ixx = 643mm4, Iyy = 264mm4 Circumference: 19 3/8" Alloy: 6061-T6 Sail slides: 3/4" flat slides - MM #6 (A006M) Internal Electrical slides*: 7/8" sailtrack slides, Mer 404-7 Standard lengths: Common Mast usage: Bristol 32; Formosa 51K (mizzen); Tartan 34*; Vagabond 47K (mizzen);
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| MetalMast 7348 Mast Section Measurements: (OD) 7.30" x 4.80" (185mm x 122mm) xv Wall Thickness (minimum): ." Weight/ft.: 3.44 lbs. Weight/m.: 5.13kg. Moments of inertia: Ixx = 20.02", Iyy = 8.77" Moments of inertia: Ixx = 833mm4, Iyy = 365mm4 Circumference: 21" Alloy: 6061-T6 Sail slides: 3/4" flat slides - MM #6 (A006M) Internal Electrical slides**: 3/4" flat slides - MM #6 (A006M) Standard lengths: Common Mast usage: Admiralty 65K (mizzen); Alberg 35*; C&C 34*; Cal 33*; Cheoy Lee 38K* (main); Hinckley Pilot 35*; Island Trader 38K* (main); Maine Cat 30; Pearson 323*, 35*; Shannon 43K (mizzen);
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| MetalMast 7953 Mast Section Measurements: (OD) 7.90" x 5.30" (200mm x 135mm) n Wall Thickness (minimum): ." Weight/ft.: 4.17 lbs. Weight/m.: 6.22kg. Moments of inertia: Ixx = 28.11", Iyy = 12.08" Moments of inertia: Ixx = 1170mm4, Iyy = 503mm4 Circumference: 22 1/4" Alloy: 6061-T6 Sail slides: 15/16" flat slides - MM #8 (A008M) Internal Electrical slides*: 7/8" sailtrack slides, Mer 404-7 Standard lengths: 58' (242 lbs.) Common Mast usage: Block Island 40K* (main); Hinckley 38*;
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| MetalMast 8757 Mast Section Measurements: (OD) 8.70" x 5.70" (221mm x 145mm) n Wall Thickness (minimum): ." Weight/ft.: 5.24 lbs. Weight/m.: 7.82kg. Moments of inertia: Ixx = 43.94", Iyy = 17.63" Moments of inertia: Ixx = 1829mm4, Iyy = 734mm4 Circumference: 24" Alloy: 6061-T6 Sail slides: 15/16" flat slides - MM #8 (A008M) Internal Electrical slides: 15/16" flat slides - MM #8 (A008M) Standard lengths: Common Mast usage: Tayana 37*;
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| MetalMast 9461 Mast Section Measurements: (OD) 9.40" x 6.10" (239mm x 155mm) xv Wall Thickness (minimum): .155" - .195" Weight/ft.: 5.56 lbs. Weight/m.: 8.30kg. Moments of inertia: Ixx = 53.75", Iyy = 23.57" Moments of inertia: Ixx = 2237mm4, Iyy = 981mm4 Circumference: 26 5/16" Alloy: 6061-T6 Sail slides: 15/16" flat slides - MM #8 (A008M) Internal Electrical slides: 7/8" sailtrack slides, Mer 404-7 Standard lengths: 54' (300 lbs.) Common Mast usage: Alden 50K (main); Atlantic 42; Cheoy Lee 44*; Cherubini 44K (main); Columbia 50; Corbin 39*, 39K* (main); Formosa 41K* (main); Island Trader 46K (main); Roberts 43K* (main); Shannon 43K (main); Chris White 42' Cat; Common Boom usage: Able 58;
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| MetalMast 10869 Mast Section Measurements: (OD) 10.80" x 6.90" (274mm x 175mm) n Wall Thickness (minimum): .170" - .300" Weight/ft.: 6.98 lbs. Weight/m.: 10.42kg. Moments of inertia: Ixx = 96.00", Iyy = 37.71" Moments of inertia: Ixx = 3996mm4, Iyy = 1569mm4 Circumference: 30 1/4" Alloy: 6061-T6 Sail slides: 15/16" flat slides - MM #8 (A008M) Internal Electrical slides: 7/8" sailtrack slides, Mer 404-7 Standard lengths: 65' (455 lbs.) Common Mast usage: Able 50*; Admiralty 65K (main); Alden 54*; Atlantic 50K (main); Benford 50K (main); Bristol 51.1*; Bruckman 50; Formosa 51K (main); Morgan 50*; Roberts 53*; Shannon 50; Sundeer 64K (main); Vagabond 47K (main);
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| MetalMast 12275 Mast Section Measurements: (OD) 12.20" x 7.50" (310mm x 190mm) r Wall Thickness (minimum): .196" - .410" Weight/ft.: 10.60 lbs. Weight/m.: 15.82kg. Moments of inertia: Ixx = 143.3", Iyy = 74.01" Moments of inertia: Ixx = 5964mm4, Iyy = 3080mm4 Circumference: 32 5/8" Alloy: 6061-T6 Sail slides: 15/16" flat slides - MM #8 (A008M) Internal Electrical slides: None Standard lengths: Common Mast usage: Buhler Cat 65; Flyer Cat 56;
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| MetalMast 14481 Mast Section Measurements: (OD) 14.40" x 8.10" (366mm x 206mm) r Wall Thickness (minimum): ." Weight/ft.: 13.44 lbs. Weight/m.: 20.06kg. Moments of inertia: Ixx = 283.5", Iyy = 91.31" Moments of inertia: Ixx = 11,800mm4, Iyy = 3800mm4 Circumference: 37 3/8" Alloy: 6061-T6 Sail slides: 15/16" flat slides - MM #8 (A008M) Internal Electrical slides: 15/16" flat slides - MM #8 (A008M) Standard lengths: 45' (605 lbs.) Common Mast usage: Swan 65*; |
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