B&G Triton2 Operator's Manual page 64

64
• Method 2 - Monitor tacking angles
If according to the compass you are tacking through an angle
different than the sum of the True Wind Angles on each tack
(Port TWA + Starboard TWA) then the following rule applies:
- If the tack angle < the sum of the TWA's, the True Wind Angle
is reading too wide, half the error must be subtracted from the
TWA correction table
- If the tack angle > the sum of the TWA's, the True Wind Angle
is reading too narrow, add half the error to the TWA correction
table
Ú Note:
Ensure your compass is correctly calibrated before
carrying out TWA calibration using either method.
True wind speed
Ú Note:
This option is only available if an H5000 CPU is connected
to the system.
True Wind Speed errors are seen from sailing upwind to downwind.
This is due to the acceleration of the airflow over the top of the mast
and around the sails when sailing downwind. -10% is the default
value for TWA calibration. Monitoring the change in True Wind
Speed from close hauled to broad reaching will enable further
refinement of this calibration value.
Motion
Ú Note:
This option is only available if an H5000 CPU is connected
to the system.
A 3D Motion sensor and mast height value is required in
conjunction with a CPU running Hercules level software or
greater to use this feature.
When the wind is measured it is initially corrected for masthead unit
alignment offset and mast rotation. Set the mast height and tick
Motion Correction for motion correction to be applied to measured
wind speed and wind angle.
Depth
Depth offset
All transducers measure water depth from the transducer to the
bottom. As a result, water depth readings do not account for the
Software setup | Triton2 Operator manual