Simrad AP26 Manual De Usuario

Installation 

20221586B

 37 

Refer to Figure 2-3 with references [ ] the associated displays 
and the criteria (bullets) below. 
•  The set wind angle should be larger than the ‘Minimum 

wind angle’ set in the Installation/Dockside menu and 
smaller than 170° Apparent. 

•  Information about when it is time to head directly towards 

the waypoint, Distance To Turn (DTT) and Estimated Time 
to Turn (ETT) are displayed. These calculations are based on 
the assumption that the set wind angle will be the same or 
larger after a tack or gybe towards the waypoint [2][3]. 

•  A turn prompt will appear when it is time to head towards 

the waypoint and the autopilot will calculate and display the 
change of heading by comparing between the current 
heading and the heading towards the waypoint (CHG) [5]. 

•  When heading towards the waypoint, the autopilot utilizes 

either the XTE from the GPS/Chartplotter to maintain track 
or a layline calculated by the autopilot. The calculated 
layline applies when the Cross Track Error (XTE) from the 
external navigator is larger than 0.15 nm [8]. 

If ‘Wind setup’ is set to ‘RACING’ in the Installation/Dockside 
menu, a more advanced steering is possible: 
•  Optimising VMG to wind may be enabled when beating and 

it is not possible to head directly towards the waypoint [2][4].  

•  Layline steering may be disabled when heading directly 

towards the waypoint. Instead you can optimise the Waypoint 
Closure Velocity (WCV) by trimming the sails and the set 
wind angle. A turn prompt will then be displayed if the 
difference between Course Over Ground (COG) and Bearing 
Position Waypoint (BPW) exceeds 30° when heading 
towards a waypoint [8].  

See chapter 2.22 User Set-up Menu on how to access these 
parameters.