Design #82 IOR 40

moderate size spinnakers also assist with faster and easier handling of these sails compared with masthead rigs.

The hull form is typically Farr with powerful sections, not excessive beam, fine bow to handle a short chop to windward, and as light in displacement as the DLF of the IOR Rule will allow, consistent with all-round performance.

Stern sections are more conservative in beam than is usual from our office to gain better light weather and upwind performance relative to rating.

Construction utilizes substantially Kevlar, with some S Glass, and is the result of exhaustive analysis of pure efficiencies of various materials as well as comparisons on a cost versus effect basis. The resulting structure varies in detail between the extreme ends and the centre of the boat to gain best advantage within limited expenditure. The so called "space frame" system is not used as our research and practical examples show that a properly engineered structure can be stiffer, lighter and stronger than a space frame arrangement.

The deck and internal arrangement were drawn up around the skipper's (Don Lidgard) specific requirements to facilitate his particular style of sailing.