Yet more rule changing saw the introduction of bowsprits and larger spinnakers being permitted at the end of the eighties. This inevitably meant asymmetric spinnakers. A year or so was spent in intense development until the final rule was defined, which gives a sail of a nominal 140 sq. ft, (actually about 150-160 sq.ft.). This, coupled with the new flat narrow hull shapes and the 1984 rules has led to a boat with quite astonishing medium winds performance offwind.

Dog (Roberts mk 1)

Bistro development with double chines and slight hollow between chines. Very low rocker. The double chine helps to minimise waterline beam within the 1984 rules. e.g. Cheese Before Bedtime

Paterson 6

Moth influenced design with distinctive high foredeck. Very slab sided and flat floored. At least one later modified as 6a with snout, wider beam and flat foredeck. e.g. King Tubby.

Flying Trifle (Harrison/Lobb/Stimson)

Chris Stimson, one of a new wave of U.K yacht designers, teamed up with Cherub sailors John Lobb & Martin Harrison to produce this design, named for a party at the Torquay Nationals where they started thinking about the design. Notable for extreme topside flare aft. Low rocker, flat aft. The Flying Trifle

Pasta Frenzy (Roe mk 2)

A development of the Bistro the Pasta Frenzy utilised double chines for narrower beam at the waterline. A Pasta Frenzy took two seconds in the 1995/6 words, but then proceeded to break every spar on the boat. At least one later modified with snout and wider beam. e.g. The Pasta Frenzy

Platypus (Roberts mk 2)

More moderate development of Dog, the Platypus was compromised a little away from top speed and a little towards controllability compared to its predecessor. e.g. Therapy


Designed by Duncan Barr, I know very little about this boat. Lost In Space

Death by Chocolate (Harrison/Stimson)

Fine bow with straight entry. Plenty of curvature at mid length with quite a lot of rise of floor. Curvature washes out to fairly narrow moderately V'd transom with no panel curvature. Moderate even rocker. Sweet Dreams

IMA Sports Cherub(Iain Murray & Associates - now Murray, Burns & Dovell).

Designed to the UK rules and built by Dinghy Sports, the IMA Sports Cherub was the first Australian design built to the UK rules and fitted with an asymmetric spinnaker. With plenty of rise of floor at mid length and a fine straight entry it was quite different from contemporary designs in the UK. One of these designs won the 1995/6 World Championships Single chine, low rocker, U'd sections throughout, maximum rise of floor at mid length and plenty of rise of floor at transom. Not unlike Deeley 5, but finer forward. 1996 Worlds winner. eg Sports Cherub

Hardon Clifton 1

Radical design by Simon Clifton with very low rise of floor and low rocker. Catananche

The 1997 Rule changes permitted snouts -bow extensions for jib and bowsprit, wider beam, and considerably reduced the rise of floor restrictions. These modifications were sufficiently compelling that many post 1990 boats were altered with the wider beam etc, including Bistros, Paterson 6, Pasta Frenzies and at least one Roberts design.

Patterson 6a

Andy Paterson converted his MK6 with shout and wide flares and won the 1997 Nationals with it. As well as the obvious wings and snout, he actually extended the bow rather than the stern and so made the bow slightly finer.

Septic Slug (Roberts mk 3)

First 1997 rules design. Waterplane distribution rather further aft than earlier boats and “wavy” flare. e.g. Dangerous Beans

Paterson 7

Development of Paterson 6a for the 1997 Rules. Very slab sided and flat floored with a great deal of topside flare carried right round to support the snout. e.g. Shiny Beast. One boat built with racks rather than flares. AquaMarina.

Velocipede (Garfitt)

Moderate interpretation of 1987 rules, loosely based on a Pasta Frenzy. Fuzzy Logic

Butt Plug (Sims)

Low rocker, flat sections aft, U sections forward with chine not appearing until well back from the bow. Mango Jam


The drawings on this page are for information only and are not warranted accurate. Copyright and reproduction rights, including building rights reside with the designer.

  • history/1990s_designs.txt
  • Last modified: 2023/03/15 19:15
  • by jp233