Why is the Sail/Displacement ratio of the Pahi 42 less than that of the Tiki 46?
James says: “With reference to Bruce Numbers (similar to Sail/Displacement Ratios): Multihulls with a standard Bermudan style rig and a high Bruce Number are less stable and and have a higher capsizing potential. The PAHI 42 rig, whilst having a lower Centre of Effort than most Bermudan rigs by bringing the tack almost down to the deck (something now followed by other racing craft), it still is a Bermudan configuration. The twin masted ‘TIKI’ rig allows one to carry more sail than the Bermudan rig, hence a higher Bruce Number, without raising its capsizing potential. However, I sailed on Peter Richardson’s PAHI 42 from Scotland to Iceland in 1999. It is a very nippy craft. Peter Richardson expects speeds of 10-12 knots from it regularly, but he is a tough, high quality sailor, and the boat is built to specification. He does use his Genoa, shown in the Plans, in light winds, which gives him 800sqft of sail area.
James says: “With reference to Bruce Numbers (similar to Sail/Displacement Ratios): Multihulls with a standard Bermudan style rig and a high Bruce Number are less stable and and have a higher capsizing potential. The PAHI 42 rig, whilst having a lower Centre of Effort than most Bermudan rigs by bringing the tack almost down to the deck (something now followed by other racing craft), it still is a Bermudan configuration. The twin masted ‘TIKI’ rig allows one to carry more sail than the Bermudan rig, hence a higher Bruce Number, without raising its capsizing potential. However, I sailed on Peter Richardson’s PAHI 42 from Scotland to Iceland in 1999. It is a very nippy craft. Peter Richardson expects speeds of 10-12 knots from it regularly, but he is a tough, high quality sailor, and the boat is built to specification.
