B&G H2000 Pilot *DISCONTINUED* - Manual (Page 65)

HB-0845-06 65
2.9.34 Optimum Wind Angle
Menu heading: PERFORM
Function text: OPT W/A
Update rate: 1Hz
Units: Degrees
Note
1. Requires Performance Processor.
For every target boat speed there is an angle at which that
speed will be achieved (the Target Wind Angle). The
optimum wind angle is the difference between this angle
and that at which you are presently sailing, so keeping the
optimum wind angle at zero achieves the angle for Target
Boat Speed.
Sometimes, particularly downwind, it is easier to try to sail
to a wind angle rather than to the target boat speed. The
accuracy of this function will depend on how accurate the
polar tables are for your boat.
2.9.35 Polar Boat Speed
Menu heading: PERFORM
Function text: POL SPD KT
Update
rate: 1Hz
Units: Knots
Note
1. Requires Performance Processor.
This is the predicted maximum achievable boat speed for
the current wind conditions. Unlike Target Boat Speed,
which only applies whilst sailing at the optimum wind angle
upwind or downwind, Polar Boat Speed applies at all wind
angles. It is useful when sailing on a free leg. The helmsman
and trimmers can use this figure as the target to achieve
maximum performance independent of any changes in the
wind speed.