Tacking; Figure 104 - Wind Mode Tack Query - ComNav Commander P2 Installation & Operation Manual

ComNav Commander P2 Installation & Operation
To change the commanded angle while in WIND mode, rotate the COURSE CHANGE knob.
The commanded wind angle will change by 1° for every click of the knob.
The 45° and the 165° wind angle "WIND mode entry limits" described on the previous page
are significant because they are the Close Haul Def Point and the Gybe Hold Point
respectively. These angles can be changed via the Wind menu.
Attempts to change the commanded wind angle beyond these points of sail will be ignored by
the Commander P2. This is a safety feature known as Tack and Gybe Inhibits.
Tack and Gybe Inhibits are meant to prevent unintended Tacks, or accidental Gybes.
However, there is a way to intentionally perform Tack and Gybe manoeuvres, as described
next.

Tacking

Tacking is accomplished by executing a Special Turn when in WIND mode.
To tack, you must be sailing into the wind at an angle less than or equal to that which is
defined by the Beam Reach Def. in the Wind menu.
1) Push the TURN button. The display shows the message "Tack ?" as shown here:
Document PN 29010074 V3.1
Important!
Bear in mind that, as always with the Commander P2
Advanced Autopilot System, when you move the COURSE CHANGE
knob clockwise, the boat will turn to starboard. This may increase the
commanded wind angle, or it may decrease it, depending on which
tack you are on.
Similarly, when you rotate the COURSE CHANGE knob counter-
clockwise, the vessel will turn to port. Again, this may increase the
commanded wind angle, or decrease it, depending on which tack
you are on.
Caution!
Tack and Gybe Inhibits are not a guarantee against
hazardous situations. When sailing under autopilot control, your
attention is required at all times – most especially when running or
beating.
Figure 104 – WIND Mode Tack Query
Important!
If the wind angle is greater than that defined by the Beam
Reach Def parameter in the Wind menu, the autopilot expects that you
want to Gybe. In this case, the display on the Control Head will show the
message "Gybe?" See Gybing, below, for more information.
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Advanced Operations