Instruction manual

Operating Modes 19
Tactical Heading Explained
Tactical heading is the heading relative the wind direction. When sailing by the tell-tales the tactical
heading should be equivalent angles on both tacks.
This makes wind shifts easy to identify. If you're trimming by your telltales and you start seeing smaller
numbers on the tactical compass display you know that you have been lifted, regardless of which tack
you are on.
Once you have identified a wind shift using the SC-1's tactical compass mode, you can adjust the
reference wind direction to account for the shift without leaving the tactical compass mode.
Defining the Wind Direction in Tactical Compass Mode
The reference wind direction stored on the SC-1 is used as a basis for calculating heading to wind in
tactical compass mode as well as VMG in VMG mode.
The wind direction can be defined in tactical compass mode by sailing upwind and tacking several times
while making adjustments to the indicated heading to wind until the same number is seen on both tacks.