Design #158 - One Ton

"EXADOR", "PACIFIC SUNDANCE" in moderate fresh conditions and at the same time better the performance of our smaller designs eg. "SIRIUS" (third in 1984 1 Ton Worlds), "EPIC LASS" (New Zealand Admiral's Cup team), "CARRO CHEFE" and "SAGA" (Brazilian Admiral's Cup team) in lighter conditions.

To achieve this goal the boat has a little more sail area and displacement than any of these existing designs, is almost as long as the lengthy Southern Hemisphere boats, but significantly narrower at beam waterline.

The narrower beam waterline is in response to the changed CGF formula which allows an increase in stability over last year's designs whilst at the same time obtaining a substantial decrease in wetted surface area.

Stern sections are modeled very much on those developed for "SNAKE OIL" and "DRAKE'S PRAYER" being of only moderate beam but very fair through the aft measurement stations allowing higher top speeds to be reached.

With an SHR of 15.8 some may not consider this to be a fast light weather boat. However, due to the very narrow beam waterline and the deep but small area keel and low wetted surface area hull form, the boat will be fast in light weather. Performance prediction work indicates that this design will be significantly faster in all conditions than all of our previous boats with the exception of hard reaching in heavy airs when our Southern Hemisphere 40's can just match this boat, conditions when these boats are presently considered invincible.

The rig is very much our usual fractional although the fore triangle is a little taller at the expense of some mainsail area to trade off some of this style of boat's fantastic upwind performance to boost running and broad reaching speed in light airs, the only conditions when our earlier designs appear to be a little fragile.