Line bias & sailing angle ready reckoner

• Hand held, easy to use
• Easily stored in a jacket pocket, buoyancy aid or hung round your neck with the lanyard supplied.
• Reverse degree markings
• Will predict start line bias and wind angles over the side of a boat (where bearings between the marks are known)
• Will predict Olympic and Trapezoidal courses
• Will predict whether a gybe or bear away set is preferred on a windward/leeward course after a wind shift

http://www.ronstan.com.au/marine5/product.asp?ProdNo=WOTTAC