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Welcome to the Viper 640 Class

The Viper 640 is a high-performance one-design sport boat.
At 21 feet long and only 748 lbs, it combines the stiffness of a keelboat with the acceleration and planning abilities of a dinghy. The design mandate was "Simple, Clean and Effective".  The Viper has a precise and exhilarating feel on the helm, a spacious cockpit for 3 people, strict one-design class rules and ease of launching by ramp or hoist.

Want to test drive a Viper 640? Find and contact one of our class "sparkplugs" to go for a ride near you.  Life is too short to sail slow boats!
Viper 640 fun at the Newport Regatta

It's Your Class - Join Now!

Now with PayPal!

With our new PayPal registration form, it's easier than ever to pay your dues and be a member. Your class dues help the Class Association promote the Viper class, support Viper owners and organize Viper racing. And of course, you will need to be a class member before the NAs in Miami! The necessary forms and more information are posted here.

How to Buy a Viper

Buying a Viper 640 is easy! Our builder, Rondar Raceboats, has reps covering all of North America. They're all enthusiastic Viper owners who are here to help introduce you to the Viper with a demo sail and guide you through the process of buying your own Viper 640. Click here to locate and contact the rep nearest you!
Orange Bowl Int'l Youth Regatta: Foiling international Moth sailboat & Viper makes sailors drool
Written by Jeff   
Wednesday, 27 January 2010 21:20

 Yup, you read it right. According to BYM News........The kids at the Orange Bowl were drooling over the Viper and the Moth. Mom and Dad, isnt it time you were sailing something that your kids find exciting?

BYM News Wednesday, 30 December 2009 :- Orange Bowl Int'l Youth Regatta, Foiling international Moth sailboat & Viper makes sailors drool

Biscayne Bay was definitely the center of Miami’s action between the competing Orange Bowl boats, many coach boats and spectators and recreational boats (motor and sail) streaming down the Intercoastal. A foiling international Moth sailboat and a Viper were flying through the fleet making all the sailors drool. As the Orange Bowl boats sailed in after a long day, the sun was setting and a full Miami moon was already up in the sky. There was also a display of Atlantic bottlenose Dolphins performing in the midst of the 420 fleet.