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 planing 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 builder's reps to go for a ride near you.  Life is too short to sail slow boats!
Viper 640 fun at the Newport Regatta

EFG Bank Pan American Championship

Click here for all the information about the 2014 EFG Bank Viper 640 Pan American Championship, presented by Rondar Raceboats.

How to Buy a Viper

Buying a Viper 640 is easy! Our sole Class approved 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!

Upcoming Major Events

Pacific Coast Championship / LBRW
Long Beach, CA
June 27-29

New England Championship / Marblehead NOOD
Corinthian YC
July 25-27

Three Winners at CORK.
Written by EFG Pan American Blogger   
Tuesday, 27 August 2013 09:26

Vicious Panda wins CORK and Great Lakes Championship.

Rum Theory wins Canadian Championship (2nd in regatta and top Canadian Boat)

Argentinean sailor wins the online version of the CORK- EFG Pan American Series.

Young Olympic hopeful from South Africa takes the lead in the EFG online series (and would like to come to Miami)

All this, daily race recaps, and pictures at:

Full results from CORK

Day 2 at CORK – Flux Panda pitch a perfect “no hitter”.
Written by EFG Pan American Blogger   
Sunday, 25 August 2013 07:57

See EFG Pan Ams for updates on CORK

Better Know A Viperer: Ed Feo
Written by Viper 640 Admin   
Sunday, 18 August 2013 15:36
altThose of you on the West Coast and maybe some of you from the East Coast have had the pleasure to meet and sail against Ed Feo over the past couple years in the Viper. Ed has been very active in the fleet and a great addition to the group. Many of you might not know this, and he is much too humble to mention it, but Ed is one of the best Karaoke singers on the West Coast. Look for him at the NAs in Houston, buy him a beer and challenge him to a round of karaoke!

What is your home port: Long Beach, CA

Viper owned: "Locomotion" US 104. This was the boat sailed successfully by Tim Carter. I named the boat "Locomotion" after my prior boat, which was an Andrews 45. I had a bunch of gear with the name on it, so it made sense to keep the name! The Andrews 45 was called "Locomotion" by its original owner. He liked the song by that title, I guess. Anyway-- its a good name for a fast boat.

How long have you been racing Vipers: I have been racing Vipers for a couple of years. I was introduced to the boat by Tim Carter. One screaming reach with the kite up and I thought-- "I gotta have one of these."

Small is Beautiful. Noel Leigh-Smith and Team "Viper QLD" dominate at Airlie Race Week
Written by EFG Pan Am Blogger   
Friday, 16 August 2013 06:46

EFG Pan American Championship Qualification Series moves to Cowes
Written by EFG Pan American Blogger   
Thursday, 01 August 2013 13:36

This week there are two further stages to the EFG Pan American Championships Qualification Series .

Both are in the Solent UK.

One is online and Sportboat sailors from around the world can participate.

The other is on the water and starts on Saturday August 3rd.   For news and pictures, please go to

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