Here are the files for Knysna 500SE polars in CSV format suitable for upload to Predict Wind. For passages, I normally set Predict Wind to route forecast based on 80% polar performance. I find this nicely matches the way we sail.
Excel file format not permitted for upload so I have also included the column headings for the CSV file here (Column A to AI). Column A is TWS followed by 17 column pairs of TWD and STW:
TWD STW TWD STW TWD STW TWD STW TWD STW TWD STW TWD STW TWD STW TWD STW TWD STW TWD STW TWD STW TWD STW TWD STW TWD STW TWD STW TWD STW
Moonbird Polars 2024-12.txt (932 Bytes)
k50_polar diagram.pdf (546.1 KB)