ComNav Commander P2 - Figure 118 - Pretack Turn Query; Pretack (Preset-Tack)

ComNav Commander P2 & P2VS Installation & Operation Advanced Operations
Document PN 29010074 V4.1 - 168 -
Pretack (Preset-Tack)
Figure 118 – PreTack Turn Query
Preset-Tack Special Turns are only available in AUTO mode, and if the Vessel type in the
Dockside Setup menu is set to Sail.
You may activate this turn at any wind angle, and you may do it in either direction.
The Preset-Tack turn will turn the boat the number of degrees specified by the Preset Tack
Angle in the Wind menu, in the direction you select by pressing the
P
P
O
O
R
R
T
T or
S
S
T
T
A
A
R
R
B
B
O
O
A
A
R
R
D
D
button.
This turn is used when you need to Tack (or Gybe) while sailing the boat at various specific
Headings, rather than tacking/gybing to a specific wind angle, as is done in WIND &
WIND-Points modes using those modes’ Tacking or Gybing functions (which operate very
much like Special Turns do).
For example, you could use the Preset-Tack turn when tacking back & forth across the CMG
upwind you’re trying to achieve, if you didn’t want to have to tack from Close Haul to Close
Haul.
You can also use it to change the wind angle back & forth by a specific number of degrees
(i.e., the Preset Tack angle) on the same tack: for example, to go from 060° to 110° Port, and
back again, if Preset Tack is 050°.
Note: none of the Special Turns – including Preset-Tack – are available in WIND or
WIND-Points modes.
 Caution! You should keep in mind that none of the special safety features of
Tacking & Gybing turns apply to Preset-Tack turns.
Be especially careful as to at what wind angle, and in what direction, you do a
Preset-Tack turn!
The Preset-Tack turn should initially be tested out in light to moderate winds and
calm seas, in order to understand how it works on your boat.