
Sailing: Advanced Systems
- 9 September, 2019
- 0 Comment(s)
More advanced instrument systems make use of additional sensors and techniques to gain a higher level of accuracy in the calculation of True Wind.
Motion Correction
Heel and Trim angles can be factored into the wind angle measurements, along with the rolling and pitching motion of the boat, allowing us to compensate for induced motion at the top of the mast as the wind sensor is thrown around with the motion of the boat.
True Wind Corrections
More advanced calibrations like True Wind Correction Tables allow the Wind angle to be adjusted manually for the deflection effect that the sail plan has on the wind immediately before it hits the boat, similar to the way a container ship pushes a bow wave ahead of it.
Performance Wind Filter Performance
Wind Filtering comprising advanced filtering methods can be used to achieve a True Wind Direction that is statistically more accurate, and less susceptible to short term errors, than basic trigonometric calculations.

main-H
Polar Tables
Polar tables can be loaded into some systems to enable an automatic look-up of target boat speed and optimum wind angle speed at the present wind speed and angle. This allows the helm to compare the current performance of the yacht with its known, or theoretical, optimum performance.
Tactical Software
For tactical planning, software such as Deckman from B&G allows you to input data to calculate future journeys – GRIB weather files and tidal data can be uploaded into the software for up-to-the-minute calculations of optimum routes. These software packages link directly with the instrument system to enable them to receive current data from the yacht and calculate more advanced features
And here concludes our publications on “Essential Guide to Sailing Instruments”, you can download the full document by clicking HERE. Thanks for following us!