Port of MDI

Kelsall Catamarans

KSS Boat Building Workshop

For Professional and First-time Builders

Denver, Colorado, USA

Thursday 25 August 2011 thru Sunday 28 August

KSS Workshop Denver, USA PDF

Sailing

34th Ameirca's Cup - AC45 Testing Day

Technical

The Texel rating and its development since 1984

Updated 14 February 2011

The Texel rating formula has been used in the Netherlands for the first time for the round the isle of Texel race in 1984. That has been the source of its name too. Before that year yardstick numbers were used to approximate the performance you might expect from catamarans. As these numbers were derived from race statistics, it was not possible to determine handicap numbers for new designs.

As a consequence the Texel Race organization, supported by the national sailing authority in Holland, decided to start using rating numbers. They are numbers calculated from measured data of the designs, by the use of a practical performance formula. This formula is inspired by studies from the British designers John Shuttleworth and Derek Kelsall and supported by Richard Boehmer and others. An article of the American designer Olin Stephens published in 1972 about 20 elements of speed was an extra inspiration. On the places 1, 2 and 3 he mentioned the elements length, sail area, displacement. These three elements were shown to have the greatest influence on the performance potential of a yacht.

Yacht Sales

STUART YACHT SALES

Honest, dependable, trustworthy, helpful, courteous - no this is not the Boy Scout Law or Creed, it is Bill Watson of STUART YACHT SALES. If you need a Broker - buying or selling - he is Your Broker.

Multihull Dynamics, Inc.

Multihulls by the Numbers

Port of MDI

Port Slips

Design Review Example

Multihull Design Review

Multihull Dynamics, Inc.

Multihulls by the Numbers

Port of MDI

Port Slips

Design Review Example Multihull Design Review

Design Review Example

Multihull Design Review