Forces on sails (3 m) = 5-m/s (≈10-knot) wind at 3 m above the water would be approximately "V" (15 m) = 6 m/s (≈12 knots) at 15 m above the water. In hurricane-force winds with "V" (3 m) = 40-m/s (≈78 knots) the speed at 15 m would be "V" (15 m) = 49 m/s (≈95 knots) with "p" = 0.128. This suggests that sails that reach higher above the surface can be subject to stronger wind forces that move the centre of effort ("CE" ) higher above the surface and increase the heeling moment. Additionally, apparent wind direction moves aft with
Sails of the South Sails of the South The Trimast, commonly referred to as the Sails of the South, is a –high structure situated between two carriageways of the M275 motorway just outside Portsmouth, England. It was unveiled in March 2001 in order to enhance the entrance to the city as part of the regeneration scheme The Gateway Project. HGP Architects, offices located in Fareham less than realised the scheme and installation. The structure is one of the tallest in Portsmouth. The physical appearance of the Sails are a masted tri-sail, flanked by poles and cables on either side of the carriageway to form