36 Northstar NS3300 Pilot

Boat heading

Course error, 10° to starboard
CTS (intended autopilot course, to achieve
the SWA [set wind angle])
SWA (set wind angle), 45°
Wind angle,
can be APP (apparent)
or TRUE Wind
APP Apparent wind
angle
The apparent wind angle at th e boat. P in front of the an gle means the wind i s from port, S mean s that the wind is
from starboard.
CTS Course to steer The course to steer to maintai n the SWA (set wind angle ).
Course error The difference betwee n APP (wind angle ) and SWA (set wind angl e).
SWA Set wind angle The desired wind angl e.
TRUE True wind angle The true wind angle at the boat. P in front of the angl e means the wind is f rom port, S means th at the wind is
from starboard.

The autopilot has three ways of steer ing the boat, compass, GPS and wi nd. To select an

appropriate mode, see section 3-7. In wind mode, the auto pilot steers the boat to a set angle t o

the wind, called SWA (set wind an gle).

7-3-1 Wind steering data7-3 Wind steering mode