Isovangs

Isomat's Isovang is a tubular Hard (solid) Vang with integral sheaves and line that is Spring cushioned for Boom support.
Sparcraft's Pneuvang utilizes 1 or more Pneumatic Gas Shock(s) as a Spring to support the Boom, and have a single Sheave at the top.
For recommendations on a new Vang for your boat, contact us with Boat details including current Mast and Boom Sections.

For Mast-mounted Vang Brackets, See: Isomat Vang Brackets & Toggles.
For Boom-mounted Vang Attachments, See: Isomat Boom Sections or Sparcraft Boom Sections.

NG1 Isovang:
The NG1 Isovang is designed for smaller boats, generally less than 33' (10m), and utilizes a Spring to support the Boom. NG1 Isovang attaches to the mast-mounted Vang Toggle and to the Boom Vang Attachment Lug with 10mm Pins (3/8").

Outer Tube diameter: 45mm (1 3/4") OD
Inner Tube diameter: 33.6mm (1 5/16") OD
Sheave size: 50mm (2") OD x 10mm (3/8") ID

NG2 Isovang:
The NG2 Isovang is designed for larger boats, generally longer than 30' (9m), and utilizes a Spring to support the Boom. NG2 Isovang attaches to the mast-mounted Vang Toggle and to the Boom Vang Attachment Lug with 22mm Pins (7/8").

Outer Tube diameter: 70mm (2 3/4") OD
Inner Tube diameter: 58mm (2 1/4") OD
Sheave size: 85mm (3 3/8") OD x 22mm (7/8") ID

Sparcraft Pneuvang:
Sparcraft's Pneuvang is unique in that it utilizes 1 or more Pneumatic Gas Shocks as a Spring to support the Boom. Designed for a wide range of boats, Pneuvangs attach to the mast-mounted Vang Toggle and to the Boom Vang Attachment Lug with 14mm Pins (9/16"). Units feature an Aluminum Sheave at the top to double the power of any Vang Tackle.

Pneuvang Sizes 2, 3, 4 Outer Tube diameter: 55mm (2 3/16") OD
Pneuvang Sizes 2, 3, 4 Inner Tube diameter: 40mm (1 9/16") OD

Pneuvang Size 5 Outer Tube diameter: 80mm (3 1/8") OD
Pneuvang Size 5 Inner Tube diameter: 63mm (2 1/2") OD

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Spars, Rigging, and Hardware for Sailboats