What are katabatic winds?
Send your answers to george@bwsailing.com. A winner will be selected randomly from the correct answers.
Many thanks to everyone who sent in answers to last week’s question on NACA foils. The winner this week is Pilar Bell who emailed: “NACA foils are used in the design of rudders and daggerboards. Developed originally for aircraft, the precision shaping reduces drag and optimizes lift, which helps boats sail closer to the wind and handle better. ” (NACA sands for the National Advisory Committee for Aeronautics.)
