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Sportboat

Viper 640

keelboat

A fast, lifting-keel sportboat designed by Brian Bennett, easy to trailer and quick enough to plane with three or four up.

LOA
6.43
M
YEAR DESIGNED
1996
DESIGNER
Brian Bennett
One-Design Sails

Sails For This Class

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Technical Data

Specifications

LOA
6.43
M
Beam
2.49
M
Draft
1.47
M
Hull Weight
318
KG
Crew Min
2
Crew Max
4
Year Designed
1996
Mainsail Area
11.9
M²
Jib Area
8.39
M²
Spinnaker Area
39.5
M²
Class Profile

Class Facts & History

Category
Sportboat
Type
keelboat
Designer
Brian Bennett
Class Association
Viper 640 International Class Association

History

Brian Bennett designed the Viper 640 in 1996, and it was named Sailing World's Boat of the Year in 1997. When the original builder stopped production, Rondar Raceboats in the United Kingdom took over manufacturing and kept the class growing across the US East Coast, Southeast and West Coast.

Sailing Characteristics

The lifting keel and asymmetric spinnaker off a retractable bowsprit make the Viper easy to launch and quick to get planing downwind. It is a genuinely simple boat to sail well, which is why strict class rules keep costs down without slowing the racing.

Racing Context

Around 300 boats race in one-design fleets across the United States, with regular starts at events including the Helly Hansen NOOD Regattas and a growing presence on the West Coast.

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