Sparcraft IM-1170 Mast

Sparcraft IM-1170 Mast
Measurements (OD): 9 3/4" x 6 3/4" (247mm x 172mm)
Wall Thickness (minimum): 4mm
Weight/M: 8.98kg. - Weight/ft.: 6.01 lbs.
Moments of inertia: Ixx = 59.59", Iyy = 27.87"
Moments of inertia: Ixx = 2480cm4, Iyy = 1160cm4
Circumference: 26 3/4" (680mm)
Sail slides: 15/16" flat slides, MM#8
Alloy: 6005-T6
Standard Mast Lengths: 19M
See also: Isomat NG-86 Mast Section

Common Mast usage: Lagoon 380;

See also Sparcraft Booms, and Sparcraft Spreaders. See also, Sparcraft IM Masts, and other Sparcraft Mast Sections.

IM-1170 Mast Components
The IM-1170 was designed as a direct replacement for the Isomat NG-86 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-1170 Mast Section are listed here. * For all other parts, See Isomat NG-86 Mast Section.

IM-1170 Internal Waterproofing Plug: IM1170-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.
	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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