11. Although the boat is sailing perpendicular to the true wind , its sails are set for close hauled sailing. 12. Note that the true wind is added using vector addition to the head wind created by the boat's speed. 13. Figure 1 shows the relationship of the true wind and apparent wind vectors as differing by the yacht velocity. 14. Bryant recommended further removal of the point which would allow a true wind along the whole channel past the dangerous sandbar. 15. It can sail slightly faster, as a multiple of the windspeed, if it sails at a greater angle off the true wind . 16. She then sailed for 40 minutes on a south-south-east course with true wind speeds of about, attaining a top recorded speed of. 17. These devices can be calibrated to measure the true wind speed and the apparent wind speed ( speed that a sailor would'feel'). 18. The boat will accelerate, so the apparent wind will be less than the true wind and will shift forward of the true wind . 19. The boat will accelerate, so the apparent wind will be less than the true wind and will shift forward of the true wind. 20. "Apparent wind " velocity is the vector sum of the " true wind " and the headwind an object would experience in still air.
