Fixed angles laylines

The following options are available for fixed angle laylines:

Laylines Fixed angles

• Sail performanceSail performance — Use this option to switch to Polar angles specific for your vessel or Mirrored TWA.

• Sail performanceUpwind angleUpwind angle — Specify the fixed upwind angle. The default upwind angle is 45° You can adjust the upwind angle to a value between 15° to 70°.

• Sail performanceDownwind angleDownwind angle — Specify the fixed Downwind angle. The default downwind angle is 140° You can adjust the downwind angle to a value between 125° to 175°.

• Sail performanceBoat typeBoat type — Determines the boat icon used in the Chart app. Selecting one of the following boat types will also provide more accurate leeway calculations:

  • Sail cruiser (leeway 5° – 10°)

  • Race sail (leeway (3° – 5°)

  • Catamaran (leeway 10° – 20°)

  Note

  • Leeway calculations are only used when Adjust for tides is disabled.

  • If you select a boat type other than one with stated leeway angles then no leeway correction will be applied in the calculations.

• Display laylines on this chart — Enables and disables display of laylines in the current Chart app instance.

• Laylines Adjust for tidesAdjust for tides — When enabled layline calculations will take into account tidal flow and leeway.