Skysail Training - RYA Courses. RYA Radar, Day Skipper and Coastal Skipper / Yachtmaster, Basic Navigation and CEVNI Test. Shorebased courses. Free RYA course training materials online and online tests for Colregs / IRPCS / CEVNI / Weather at Sea. RYA Recognised Training Centre Bucks, Berks, Oxon.Skysail Training Skills Charts Essential knowledge for RYA courses - Navigation, Colregs Signals and IRPCS, Weather Information, VHF Procedures, Radar Controls & Plotting Sheet, SOLAS and Distress signals, Buoyage, CEVNI signs. Laminated colour A4 charts, keep them on your boat for quick reference. 30th November 2009.