THE CRITICAL ROLE OF ACCURATE WIND MEASUREMENT FOR WIND ASSISTED SHIP PROPULSION Figure 12: Real time load and driving force read outs (basis bending and torque loads) used by the crew to ensure the vessel is being operated safely and to optimise performance, as derived from the Insensys 昀椀bre-optics load monitoring data. Figure 13: Long term structural health and design endorsement plots of polar loads on deck bearings, derived from composite strain measurements in the rig. Courtesy of Southern Spars, https://southernspars.com/dynarig/) 22