NorthStar Navigation NS3300 manual Wind steering mode, Wind steering data

7-3 Wind steering mode

The autopilot has three ways of steering the boat, compass, GPS and wind. To select an appropriate mode, see section 3-7. In wind mode, the autopilot steers the boat to a set angle to the wind, called SWA (set wind angle).

7-3-1 Wind steering data

Course error, 10° to starboard

Boat heading

Wind angle, can be APP (apparent) or TRUE

CTS (intended autopilot course, to achieve the SWA [set wind angle])

SWA (set wind angle), 45°

Wind

APP	Apparent wind	The apparent wind angle at the boat. P in front of the angle means the wind is from port, S means that the wind is
	angle	from starboard.
CTS	Course to steer	The course to steer to maintain the SWA (set wind angle).
	Course error	The difference between APP (wind angle) and SWA (set wind angle).
SWA	Set wind angle	The desired wind angle.
TRUE	True wind angle	The true wind angle at the boat. P in front of the angle means the wind is from port, S means that the wind is
		from starboard.

36 Northstar NS3300 Pilot