A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Dick Pratt
Date: 2015 Nov 1, 07:09 -0800
Open CPN weather routing and "average" VO65 polars. The remaining leg in 2 parts, so one can use saildoc GRIBs up to Feb 28th to calculate. Calculated the 2-pack going NE and staying relatively NE. Calculated 2-pack going relatively more south and than Auckland.
Conclusion: the 2-pack should stay relatively NE and win the leg of the race. As you can see, the polars need some fine tuning (meaning: being too conservative on boat speed sailing upwind). Note the ETA using OpenCPN compared to Expedition is 3 days longer sailing.