rptb1:
Sketch of a rig with 4.5m battens, 1m panels, 20% lead, 40° yard, 5° rake. Area approx 25m².
rptb1:
Sketch of a rig with 4.5m battens, 1m panels, 20% lead, 25° yard supported by cloth triangle. Area approx 22.4m².
rptb1:
Sketch of a rig with 4.5m longest batten, 1m panels, 20% lead, 40° short yard, cosmetic curves! Approx area 22m².
rptb1:
Tammy Norie's centre of lateral resistance, determined by pushing and pulling her sideways from the dock.
rptb1:
The “Spitfire Junk” sail plan, based on research by C A Marchaj, which showed that elliptical sails generate more lift, especially at low aspect ratios.
rptb1:
Marchaj, “Aero-Hydrodynamics of Sailing”, fig 2.140 p446, showing great increase of lift for rounded foils
rptb1:
Tammy Norie on Google Earth