Viper 640

International Class Association
  • Why Viper
    • About Viper 640
    • Design
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  • Boats + Sails
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    • The Builder
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  • Class
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Vipers sailing just off the starting line at the Long Beach Worlds in 2019
Long Beach Worlds in 2019 - Photo by Sharon Green/Ultimate Sailing

Vipers are everywhere in North America!

There’s probably a fleet near you, or at least a few boats, and regional regattas everywhere.

CaliforniaDesert – ArizonaMarbleheadLong Island SoundGreat LakesMid AtlanticPacific NorthwestGulf Coast
  • About the Class
  • Constitution & Bylaws
  • Rules
  • Sail Registration
  • Bow Numbers
  • Electronic Devices
  • Join the Class
  • Class Officers
  • Class Newsletter
  • US
  • UK
  • Canada
  • Australia
  • Bermuda
  • South Africa
Find a Fleet Near You

With World Sailing recognition, Vipers are being shipped globally.

Get In Touch

Contact Class Leaders, Find a demo boat or contact the builder for new sales.

Viper 640 Outline Drawing
Check Out The Boat

Easy to get sailing and up to speed, yet all the one design competition you can handle.




© 2024 Viper 640 Class Association. Viper 640 and the Class logo are registered trademarks.