17 - View From The Top Part 3: Trimming The Mainsail

In this podcast we look at the the draft depth and draft position of the upper, middle, and lower parts of the main. Because GeoVids are synced with sailing data, we can search for moments of good VMG and evaluate how we trimmed our sails to get those positive results. We can also look at how our trim adjustments played out over time.

 

 

Using the mast view GeoVid, we have clear view of the draft stripe so we can use “AccuMeasure” to get exact figures for the draft position, depth, and even the mainsail twist. Comparing these numbers to our speed and VMG at different points in our race is a great teaching tool. Over time, we can get hard data for our trimmers on exactly what we need to do to excel in every condition.