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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

Isomat AutoReef System


The Isomat AutoReef System is a single line reefing system utilizing a special Shuttle Block inside the boom. This arrangement allows the mainsail to be reefed (and un-reefed) entirely from the cockpit by pulling a single line. AutoReef Systems use specifically modified Gooseneck and Outhaul castings with 1 or 2 additional holes drilled in them. The AutoReef System is commonly used on all Isomat NB Booms, See: NB Boom Sections.

Isomat AutoReef System components are listed below.
 

AutoReef Mast Components
The Isomat AutoReef System utilizes a minimum of Mast-mounted components, listed below.
Mast Base Turning Blocks are also required, See: Isomat Mast Base Turning Blocks.
 
AutoReef Fairlead: NGA-65:
SS AutoReef Fairlead is mounted on either side of mast above gooseneck bracket. Acts as fairlead for reef line and stop for sail when reefed with AutoReef (single line) reefing system. Flattened SS ring is welded to diamond shaped SS plate. Ring is 32mm (1 1/4") OD x 16mm (5/8") ID, plate is 65mm (5/8") high x 40mm (1 5/8") wide and is fastened with four (4) 1/4" (6mm) rivets.

 

NGA-65

NG1 Vang Brackets are used on NG-28 through NG-51 Mast Sections to mount the AutoReef Bracket Block, NGA-66. See Isomat Mast Sections.
 
NG1 Vang Bracket Ass'y w/ AutoReef Bracket Block: NG1-11AR:
Cast aluminum AutoReef/Vang Bracket Assembly fits NG-28 through NG-51 Mast Sections. Bracket is 3 7/8" (98mm) high x 2 3/4" (70mm) wide, and is fastened with four (4) 1/4" (6mm) rivets. Assembly includes NB1-1 Vertical Vang Toggle Pin and NGA-66 AutoReef Bracket Block. Vang Toggle is not included, See NG1 Vang Toggles.

 

 
 

 

NG1 Gooseneck/Vang Bracket: NG1-11:
Cast aluminum Gooseneck/Vang Bracket fits NG-28 through NG-51 Mast Sections. Bracket is 3 7/8" (98mm) high x 2 3/4" (70mm) wide, and is fastened with four (4) 1/4" (6mm) rivets. Bracket has holes for 12mm (7/16") Vertical Toggle Pin (NB1-1).

 

NG1-11
 

 

NG1/NB1 Gooseneck/Vang Vertical Toggle Pin: NB1-1:
SS Clevis pin is 12mm (7/16") diameter with a 85mm (3 3/8") grip length, and has 8mm (5/16") hole for Cotter Ring or Block attachment. Fits vertically in NG1-11 Gooseneck/Vang Bracket.

 

NB1-1
 

 

AutoReef Bracket Block: NGA-66:
Double Block with swivel head has Pin for attachment to 12mm or 14mm Vang Bracket Pins, NB1-1, or NG2-14. Used with Isomat AutoReef System.

 


NG2 Vang Brackets are used on NG-51 through NG-105 Mast Sections to mount the AutoReef Bracket Block, NGA-66. See Isomat Mast Sections.
 
NG2 Vang Bracket Ass'y w/ AutoReef Bracket Block: NG2-12AR:
Cast aluminum AutoReef/Vang Bracket Assembly fits NG-51 through NG-86 Mast Sections. Bracket is 4 3/4" (120mm) high x 3 1/2" (90mm) wide, and is fastened with eight (8) 1/4" (6mm) rivets. Assembly includes NG2-14A Vertical Vang Toggle Pin Assembly and NGA-66 AutoReef Bracket Block. Vang Toggle is not included, See NG2 Vang Toggles.

 

 
 

 

NG2 Vang Bracket: NG2-12:
Cast aluminum Vang Bracket fits NG-51 through NG-86 Mast Sections. Bracket is 4 3/4" (120mm) high x 3 1/2" (90mm) wide, and is fastened with eight (8) 1/4" (6mm) rivets. Bracket has 22mm (7/8") hole at top and 14mm (9/16") hole on bottom side, for use with the NG2-14A Vertical Vang Toggle Pin Assembly, and any of the NG2 Vang Toggles.

 

 
 

 

NG2 Vang Toggle Pin Ass'y: NG2-14A:
Assembly converts NG2 Vang Bracket, NG2-12, for use with any of the NG2 Vang Toggles, See . Includes Vang Toggle Pin (NG2-14), NG2 Vang Bushing (NG2-13), and SS Cotter Ring.

 

 

 

  NG2 Vang Toggle Pin Only: NG2-14:
SS Clevis Pin is 14mm (9/16") diameter with a 125mm (5") grip length, and has 8mm (5/16") hole for Cotter Ring or Block attachment. Fits vertically in NG2-12 Vang Bracket.

 

 
 

 

 

NG2 Vang Bushing Only: NG2-13:
SS Bushing is used in upper hole of NG2-12 Vang Bracket to adapt it for use with Vang Toggle Pin (NG2-14). Bushing is 22mm (7/8") OD x 14mm (9/16") ID x 16mm (5/8") long.

 

 
 

 

AutoReef Bracket Block: NGA-66:
Double Block with swivel head has Pin for attachment to 12mm or 14mm Vang Bracket Pins, NB1-1, or NG2-14. Used with Isomat AutoReef System.

 


AutoReef Boom Components
The Isomat AutoReef System utilizes specially modified Boom End castings with special Rollers and Sheave Axles. For other Boom components, See: NB Boom Sections.
 
AutoReef Internal Shuttle Block: NB1-20:
Cast aluminum Shuttle Block incorporates (2) 22mm (7/8") Delrin Roller sheaves, NB1-20R. Used with Isomat AutoReef (single line) Reefing System.

 

NB1 Gooseneck Roller for NB-16 & NB-26 Goosenecks: NB1-11R:
Delrin Roller sheave is 18mm (11/16") OD x 14mm (9/16") wide x 10mm (3/8") ID. Used for outhaul and reef lines in all NB1 Goosenecks.

 

 
Sheave/Cam Axle for NB-16 & NB-26 Goosenecks: NB1-12:
SS knurled Axle pin is 10mm (3/8") dia. x 64mm (2 1/2") long. Used for all Sheaves, Rollers and Cams in all NB1 Goosenecks.

 

NB1-12

AutoReef Internal Shuttle Block: NB2-20:
Cast aluminum Shuttle Block incorporates (2) 35mm (1 3/8") Delrin Roller sheaves, NB2-20R. Used with Isomat AutoReef (single line) Reefing System.

 

NB2 Gooseneck Roller - 18mm: NB1-11R:
Delrin Roller sheave is 18mm (11/16") OD x 14mm (9/16") wide x 10mm (3/8") ID. Used for AutoReef lines in some NB2 Goosenecks.

 

 
NB2 Gooseneck Roller - 22mm: NB1-20R:
Delrin Roller sheave is 22mm (7/8") OD x 14mm (9/16") wide x 10mm (3/8") ID. Used for AutoReef lines in some NB2 Goosenecks.

 

 
NB2 Gooseneck Roller - 35mm: NB2-20R:
Delrin Roller sheave is 35mm (1 3/8") OD x 14mm (9/16") wide x 10mm (3/8") ID. Used for AutoReef lines in some NB2 Goosenecks.

 

 
Roller Axle for NB2 Gooseneck: NB2-12X:
SS knurled axle pin is 10mm (3/8") dia. x 90mm (3 9/16") long. Used for AutoReef Rollers in all NB2 Goosenecks.
NB2-12X

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