Viper 640

International Class Association
  • Why Viper
    • About Viper 640
    • Design
    • FAQs
    • How it Compares
    • What people are saying
    • Sailing Tips
    • Ratings
  • Boats + Sails
    • Demo Sails
    • How to Buy
    • The Builder
    • Used Boats
    • Sailmakers / Parts Suppliers
    • Tuning Guide
  • Class
    • About the Class
    • Constitution & Bylaws
    • Class Rules
    • Sail Registration
    • Bow Numbers
    • Electronic Devices
    • Join the Class
    • Class Officers
    • Class Newsletter
    • Major Championships
    • Find a Fleet
  • Events
  • Media
    • Video
    • Photos – The Boat
    • Photos – Events
    • News
    • Logos
  • Forum
Viper 640 UK

Class Approved Sailmakers

  • Doyle Sails
  • Elliott / Pattison Sailmakers
  • Ian Short Sails
  • Hyde Sails
  • North Sails
  • Quantum Sails
  • Schurr Sails
  • Skid Sail DESIGN, Western Australia
  • Ullman Sails
  • UK Sailmakers

Dealer/Builder

  • SERO Sailing

Parts Suppliers & Rigging

  • SERO Parts

Boat Covers etc

  • The Sailor’s Tailor
  • Demo Sails
  • How to Buy
  • The Builder
  • Used Boats
  • Sailmakers / Parts Suppliers
  • Tuning Guide
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.




© 2026 Viper 640 Class Association. Viper 640 and the Class logo are registered trademarks.