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