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Spars, Rigging, and Hardware for SailboatsRig-Rite, Inc. |
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Sparcraft IM-1630 Mast |
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Spars, Rigging, and Hardware for SailboatsRig-Rite, Inc. |
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Sparcraft IM-1630 Mast |
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Sparcraft IM-1630 Mast Measurements (OD): 11 1/8" x 7 3/16" (283mm x 182mm) Wall Thickness (minimum): 4.6mm Weight/M: 10.7kg. - Weight/ft.: 7.17 lbs. Moments of inertia: Ixx = 93.34", Iyy = 39.16" Moments of inertia: Ixx = 3885cm4, Iyy = 1630cm4 Circumference: 30" (762mm) Sail slides: 15/16" (23mm) flat slides (A008M) Alloy: 6005-T6 Standard Mast Lengths: 19.7M, See also: Isomat NG-105 Mast Section Common Mast usage: Lagoon 420, 440; Prout 45; |
See also Sparcraft Booms, and Sparcraft Spreaders. See also, Sparcraft IM Masts, and other Sparcraft Mast Sections. |
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| IM-1630 Mast Components | ||
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The IM-1630 was designed as a direct replacement for the
Isomat NG-105
Mast Section.
The Integral Spinnaker Track was eliminated, resulting in lower overall weight and
increased strength to weight ratios.
Except for the integral Spinnaker Track, the Sections are identical, and most
all parts (except for Spinnaker Cars) are interchangeable.
For complete Mast Assemblies, contact us with details.
Parts used primarily or exclusively with the IM-1630 Mast
Section are listed here. |
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IM-1630 Mast Step Plug for Tenon Deck Plate: NG105-3P:
Mast Step Plug is attached to IM-1630 or NG-105 Mast, reinforcing the tube end, and has dual cut-outs to sit on special Deck-mount Mast Base with Tenons, FM3-3DP, below. Welded Mast Step Plug is 11" (280mm) long x (maximum) 7 1/4" (185mm) wide, and has 1 1/2" (40mm) center hole for wiring. 1630,105
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Deck-mount Mast Base w/ Tenons: FM3-3DP:
Mast Step Deck Plate has projecting Tenons designed to mate with NG-105-3P and other Mast Step Plugs. Cast unit is 14 3/4" (377mm) long x 9 1/2" (240mm) wide, and has trapezoidal Tenons (fore & aft) with 4 3/4" x 3 1/2" (110 x 90mm) center cut-out for wiring. Unit has provisions for (8) 14mm Mast Step Block Pins, NG3-21, (2) 12mm NG2-21 Block Studs (forward), and a SS Tab for attachment of a soft Boom Vang. Mast Base fastens to deck with (10) 8mm (5/16") FH Screws. Note that not all Block Pins may be usable depending on which Mast Plug is used with this unit. Also compatible with Mast Plugs for FM-1060, 1395, 2390; NG-105/IM-1630; F-980E, 1410E, 1980E, and 2600E Mast Sections.
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NG2 Mast Step Block Stud Pin - 12mm: NG2-21:
12mm SS Clevis Pin-shaped Block Stud is used for attachment of shackle or block to lead halyards aft. Fits in integral recessed 12mm hole in a variety of Mast Steps and Deck Collars. Block Stud is installed from underside of Casting, Casting must be removed to install Block Studs. Small head Block Stud is 12mm diameter x 45mm (1 3/4") long (maximum), with a 30mm (1 3/16") grip length and a 6mm (1/4") hole for shackle pin or Block bolt.
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NG3 Mast Step Block Pin - 14mm: NG3-21:
14mm SS Block Pin is used for attachment of shackle or block to lead halyards aft. Fits in integral recessed hole in Mast Steps and Deck Collars with 14mm mounting holes. Block Pin is installed from underside of Mast Step Casting, Mast Step must be removed to install Block Pins. Special Block Pin is 14mm (9/16") diameter x 54mm (2 1/8") long (maximum), with a 35mm (1 3/8") grip length and an 8mm (5/16") hole for shackle pin, Block bolt or Block Pin Swivel Assembly.
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Internal Waterproofing Foam: NGA-Foam:
Expanding foam is used for installation of Internal Waterproofing Plug. Single-use can is sufficient for installation of any Internal Waterproofing Plug.
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NG3 Block Pin Toggle for 14mm Pin: NG3-21TA:
Heavy-duty Block Pin Toggle only, as used in NG3-21PTA, above. Investment cast SS Toggle is 26mm (1") wide with a 5/8" (17mm) inside jaw clearance and includes (2) 8mm Pins for attachment to 14mm Block Pin and Block. Assembly fits on NG3-21 Block Pin. Unit is marked 48093000014.
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IM-1630 Internal Waterproofing Plug: IM1630-WP:
Internal Waterproofing Plug is installed in Keel-stepped Masts to prevent water intrusion below deck. Assembly consists of 2 plastic pieces carefully cut to fit Mast interior with central PVC standpipe to allow passage of electrical wires. Unit slides up from the bottom of the Mast to a point just above Deck level where a hole is drilled in Mast to allow for application of expanding foam between plastic pieces. Second hole is drilled just above upper plastic piece to allow water drainage.
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Internal Waterproofing Foam: NGA-Foam:
Expanding foam is used for installation of Internal Waterproofing Plug. Single-use can is sufficient for installation of any Internal Waterproofing Plug. |
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