Please select your home edition
Henri-Lloyd 2022 December - YY LEADERBOARD

International Class Status for Viper 640, 2017 Events, Rudder Modifications

by Rondar Raceboats 27 Dec 2016 20:45 GMT 27 December 2016
Viper 640 International Regatta at Bermuda day 3 © Beau Outteridge


The high performance Viper 640 keelboat has successfully gained International Status from ISAF. This is a major step forward for the Class, following on from the Viper’s selection earlier this year by a large number of Gulf State yacht clubs (GYA) and the successful international event in Bermuda during November. There were 46 entries and 42 boats regularly on the water from USA, Bermuda, Canada, Australia and the UK.
The Class continues to grow fast, with recent international interest from
Germany and Spain


The Class welcomes overseas participation at the Spring Miami Bacardi Regatta.

Also the regatta in Lake Garda, Italy, June 2017. The dates of the event, combined with the K6 keelboat, are: 26th to 30th June 2017. Book your trip and accommodation early. If you are interested in chartering a Viper then contact Rondar Raceboats in the early spring 2017. The entry fee is £310 or €350/boat. There is loads of useful information at the link here, including details of how you can get your boat delivered. Competitors are already committed from the USA, Australia, Canada, UK, France and Spain.


Why join? Because all UK payments will be refunded to the UK Association for the promotion and management of racing in the UK. You just have to go online and join. When registered you will receive regular news updates from the Class.


Following considerable testing of a vertical rudder configuration, the Class voted in November 2016 to allow for vertical rudders to be fitted to the Viper 640. Whilst it will improve handling, it does not change the performance of the boat. For existing Vipers Rondar have developed pintle-gudgeon kit which uses the existing mounting holes, making it a simple installation. A ‘cranked’ tiller is also needed to complete the conversion. The kit is being offered at a nominal low price for retro fitting to current owners.


Hiking Lines: Amends Rule 8.3 in the Equipment and Fittings Section. This proposal would allow additional places to attach hiking lines. The current rule allows hiking lines to be attached only to the lifting eyes on the top of the keel or the sides on the floor. The proposed change would allow hiking lines to be attached the hiking straps and to the hiking strapped eyes on the cockpit floor. The change allows a more direct line of support to the person hiking and can help pull the strap up so feet can get under more easily. It also better accommodates the needs of teams sailing 4 up. There is no financial impact – and the use of these hiking lines is voluntary.

Bottom Cleaning: Amends Rule 10.4 in Prohibitions, Restrictions and Exemptions Section. In summary, the correct place for restrictions regarding hull cleaning is in the NOR and SIs rather than the Class Rules. More HERE.



Would anyone be interested in a 2/3 day weekend event in Falmouth in May 2017? Ideally based from Mylor and organised by ourselves - 2/3 races per day. Contact David Pitman if you have any interest 01637 880041.

Plymouth Yachtsman's Regatta, 14th - 16th.

Taittinger Regatta, Yarmouth IOW 14th - 16th. Sportsboat class, the fleet could all be Lymington based for easy launching?

Torbay Royal Regatta, 19th - 23rd.


Viper UK National Championships 8th - 10th, Weymouth & Portland NSA (WPNSA), combined with K6 fleet.

We will be sailing from this fabulous venue and partying in Weymouth Town Centre, so maybe best to book your accommodation there. The entry fee is £139 or €156. If you are considering coming, please would you pay £50/boat per event to the following account - K6 Class Association / 20-97-40 / 93942953. Contact is: Heather Chipperfield
Copyright © 2016 Rondar Raceboats Ltd, All rights reserved.

Related Articles

International Viper 640 announces events
And first World Champions announced World Sailing has accredited Zeke Horowitz, Ian Coleman, and Brendan Healey, all from Annapolis, MD, as Viper 640 World Champions, following their win last November at the first World Championships in Bermuda. Posted on 26 Feb 2017
Demand rises for Vipers
Since US Gulf Stage Inter-Club selection The recent selection of the Viper 640 by the GYA has led to considerable demand for the Viper 640, both in sales of used and new boats. Already shipments have been made from Rondar's production base to the many clubs involved. Posted on 24 Jun 2016
Building boats, club sailing & boat ownership
We interview Paul Young of Rondar Boats We talked to Paul Young, Managing Director or Rondar Boats, about the boats they build, making changes to classes and also his thoughts on club sailing, boat ownership, and what can be done to invigorate participation in the sport. Posted on 22 Jun 2016
Firefly celebrates its 70th Anniversary
Your chance to enter prize draw for a new boat! Designed in 1938 by Uffa Fox, as a one design boat suitable for team racing, the 2016 season marks the 70th Anniversary of Firefly Class; the first boats came off the production line at Fairey Marine, Hamble, in 1946. Posted on 29 Feb 2016
Viper 640 International Championship
Inaugural event set for Bermuda 2016 marks the 20th anniversary of the design of the Viper 640 and the 10th anniversary of the relaunch of the Class Association. The Class is now a truly international class with Viper 640 fleets active in seven nations across three continents. Posted on 26 Feb 2016
Viper 640 UK Nationals venue change
Now to be held at Lymington in September The Viper 640 UK Nationals 15-18 September 2016, will be hosted by the Royal Lymington Yacht Club, alongside the K6 Class. Posted on 25 Jan 2016
Rondar Raceboats online store now open
Purchase sails, spars, rigging, foils, accessories and trailers Rondar Raceboats are pleased to announce that their new e-commerce website is now live, giving users the ability to buy both boats and parts for the extensive range of keelboats and dinghies Rondar build. Posted on 12 Jan 2016
Rondar Raceboats online store
Set for launch with new website Rondar Raceboats are pleased to announce that they'll soon be launching an all new e-commerce website, giving users the ability to buy both boats and parts for the extensive range of keelboats and dinghies Rondar build. Posted on 7 Jan 2016
Growth and progress for Rondar Boats
One of their busiest seasons to date Rondar Raceboats have had one of their busiest seasons to date, with a great deal of growth and positive progress. Posted on 5 Jan 2016
Viper 640 UK National Championships
Sharing with the K6 fleet at Royal Torbay Hosted by the Royal Torbay Yacht Club the Viper three day event was held in a wide range of testing weather conditions around Torbay, alongside the K6 Class Championships. Five boats competed for this first UK Championship. Posted on 28 Sep 2015