Your Instruments Are Only As Good
As Their Calibration

You have invested a lot of money in your sailing instruments but you may notice they are not calibrated correctly. For example, your True Wind Direction may be off from tack to tack. Or your Apparent Wind Angles read inconsistently on opposite tacks.

Pathfinder provides remote calibration services. For a $250 fixed fee, we will:

  1. Work with you to set up a trial version of the Pathfinder Sailing app so you can log detailed data during your calibration sail.
  2. Provide step-by-step instructions and supporting video for swinging your compass, doing timed runs, and tacking your boat to develop your performance data. We analyze repeated port and starboard tack sailing, evaluate wind angle symmetry, and speed calibration.
  3. Using your uploaded one-second logged data in your new log files, we will provide detailed guidance and wind calibration table adjustments for dialing in your calibration. We can also provide assistance for this over Zoom.

After calibration is achieved, you will receive the following deliverables:

  • Updated wind calibration tables
  • Before and after comparisons
  • Recommendations for next steps/remainingissues

If you prefer on-boat support, we can provide that as well.

Custom Polar Development

Once your instruments are calibrated, we can work with you to create custom polars. Why would you want a custom polar? Manufacturer polars are helpful starting points, but usually do not represent your actual boat’s performance for several reasons.

  1. Sailing techniques in a given one-design class evolve over time and manufacturer’s polars are rarely updated after the boat is designed.
  2. Crew weight, the condition of your sails, and rig tune.
  3. Using measured log data from your boat sailing in your local conditions is more accurate.

Using your actual performance data, your custom polar will provide more accurate boat speed, wind speed, and wind angle targets. And your custom polar can be updated after on-the-water verification and future updates.

Pathfinder Sailing - Farr 40 Twisted

Schedule a Call with an Expert

Schedule a free call or Zoom with an expert to learn how we can help with remote calibration and custom polar development.

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