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
Twin Sails Bridge Twin Sails Bridge The Twin Sails Bridge (also known as The Second Harbour Crossing) is a double leaved bascule bridge in Poole, Dorset, England. The bridge provides a second road link from Poole Town Centre to Hamworthy. The intention is that the bridge will allow development of four major sites, two in the town centre and two in Hamworthy, including the old power station, which was closed in 1988. The bridge spans the Backwater Channel which links Holes Bay with Poole Harbour. The bridge and approach roads are connected to the junction of West Quay Road in the East and