Full-scale flying shape measurement of offwind sails with photogrammetry


Full-scale flying shape measurement of offwind sails with photogrammetry
11/05/2015 | Julien Deparday, Patrick Bot, Frederic Hauville, Benoit Augier - Naval Academy Research Institute - BREST, France; Marc Rabaud - Laboratoire FAST, Univ. Paris-Sud, France
submitted to Ocean Engineering
Applications: All, Engineering & Science, and Industrial Measurement

“At full-scale, measuring the spinnaker shape in real sailing conditions (flying shape) is also valuable for sail designers as they would benefit a feedback for their designs. Nonetheless it remains complex to measure spinnaker flying shapes partly because of their inherent instability, like flapping of the luff. This work presents a full-scale experimental investigation of spinnaker flying shapes with simultaneous measurement of the aerodynamic loads on the three sail corners, as well as navigation and wind data. The developed experimental set-up and photogrammetric method to acquire the flying shape of the spinnaker are presented”

local copy