Showing Polar Data in Data Fields

Before you can view polar data, you must select or import a polar table.

  1. Open the screen to which you want to add polar data.
  2. Perform an action.
    • If there is no polar data in a data field and you'd like to add it, select Options > Edit Overlays, then select the data field where you want to add the data.

    • If polar data is present in a data field and you want to change it, press and hold the data field you want to change, then select Replace Data.

  3. Select Sailing.
  4. Select the polar data to display in the data field.
    • To show the boat speed from the polar table at the current true wind speed and angle, select Polar Speed.

    • To show the optimal boat speed at the target wind angle, select Target Speed. ​

    • To show the optimal wind angle at the current true wind speed, select Target True Wind Angle. ​

    • To show Target TWA converted to apparent using target speed, select Target App. Wind Angle.

    • To show the difference between the current boat speed and the optimal boat speed shown as speed, select Δ Polar Speed.

    • To show the difference between the current boat speed and the optimal boat speed as a percentage, select Δ Polar Speed Percent.

    • To show the difference between the current boat speed and the target boat speed shown as speed, select Δ Target Speed.

    • To show the difference between the current boat speed and the target boat speed shown as a percentage, select Δ Target Speed Percent.

    • To show the difference between the true wind angle and target true wind angle, select Δ Target True Wind Angle.

    • To show the difference between the apparent wind angle and target apparent wind angle and the true wind angle, select Δ Target App. Wind Angle.

TIP: You can also use the polar table data when calculating laylines and starting line guidance.
GUID-8D60E520-A4CC-4669-8D45-79C61C3778A4 v2
January 2026