Does anyone have this?
How could I get a copy?
WoodenBoat 92 (Jan/Feb 1990). An article in that issue has wind tunnel test data, polar diagrams, etc., and the comparisons held up even for beating to windward.
http://forum.woodenboat.com/showthread.php?12217-windward-ability-of-different-rigs-(gaff-compared-to-bermudan)