Design #78/3 and #79 - 1 Ton IOR Lift Keel Racing Sloop

and considerably deeper around the mid-depths position, and has slight increase in sail area. Both wetted surface area and displacement are slightly lower than in the 1977 boats, although heavier than 1978's EXPORT LION (Design No. 79) and the revamped Design No. 64 SCALLYWAG. These dimensional changes gave some indication of likely trends under the Rule for 1980, although a development towards even more depth amidships, increased displacement, and even shorter length had been anticipated. A centerboard configuration was opted for rather than a fixed keel, because at the time these designs were drawn this still appeared to be a viable proposition. The boats had the centerboard pinned down for 1 Ton level racing, but could use the centerboard with its higher rating in open events such as SORC.

The rig is twin spreader, 4/5th proportion with large mainsail and high aspect ratio foretriangle.

Construction is three skin cold-molded over close spaced stringers spanning frames and plywood bulkheads.