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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

Pearson 422K Main Mast Ass'y - NG-70


Isomat NG-70 Mast
Measurements (OD): 8.66" x 5.71"   (220mm x 145mm)
Wall Thickness (minimum): .157"   (4mm)
Weight/ft.: 4.77 lbs.   Weight/M: 7.12 kg
Moments of inertia: Ixx = 34.36", Iyy = 15.98"
Moments of inertia: Ixx = 1430cm4, Iyy = 665cm4
Circumference: 23 3/8"   (594mm)
Alloy: 6061-T6
Sail slides: 15/16" flat slides (A008M)
Common Mast usage: A variety of boats from 35' to 45'.

* Pearson 422K Main Mast Assembly is IN Stock.

NG-70 Mast Section

Pearson 422K Main Masts were produced using the Isomat NG-70 Mast Section.
Factory original Parts used on the Isomat Mast for the Pearson 422K Main Mast are listed here.
For additional data and Parts for this Mast, See Isomat NG-70 Mast Section.
See also Pearson 422K Mizzen Mast Assembly.
 


Pearson 422K Main Mast Ass'y - NG-70

Factory original Keel-stepped Pearson 422K Main Mast Assembly includes:


Tapered NG-70 x 55' 6 1/2" tube length with Clear Anodized finish.
Welded Masthead - NG2-1AC - NG2 Masthead Rig.
Welded Spreader Bases - BF5-35 @ 31' 11 1/2"
Exit Plate, Starboard - NG2-7S4 @ 18' 10"
Exit Plate, Port - NG2-7S4 @ 15' 3"
Mainsail Gate - NG2-9K @ 15' 10"
Gooseneck Bracket - NG2-11 @ 13' 6"
Winch Pad, Port - NG70-20 @ 11' 7 1/2"
Winch Pad, Aft - NG70-21 @ 12' 4"
Cleat, Port - NGC-8 @ 10' 10"
Electrical Conduit - (2) - 1 piece to Spreaders, 1 piece to Masthead.
For additional details on these Parts, and other Parts for this Mast, See Isomat NG-70 Mast Section.

BF5 Spreaders are Not Included. See BF-5 Spreaders.
NG-70 Mast Step is Not Included. See Isomat NG-70 Mast Section for options.
Boom is Not Included, but Gooseneck Bracket is compatible with Isomat NB-32, NB-40, NB-55 and, with minor modification, Sparcraft Booms, FB-220 and larger.
 

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