Raymarine ST4000 Plus, Owner'S Handbook Manual

Page: 38 / 119

Chapter 3: Advanced Operation
25
Apparent Wind Angle
AutoTack
Angle
Course adjustment may
be necessary to mirror
the previous apparent
wind angle
D4373_1
Operating hints
ï Major changes to the selected apparent wind angle should be made
by returning to Standby mode, changing course manually, then
reselecting Vane Mode.
ï Vane mode filters the windvane output. This provides the optimum
response for off-shore conditions where genuine shifts in wind
direction occur gradually.
ï In gusty and unsteady inshore conditions, it is best to sail a few
degrees further off the wind so that changes in apparent wind
direction can be tolerated.
ï It is important to ensure that the amount of standing helm is
minimised by careful sail trimming and positioning of the mainsheet
traveller.
ï The headsail and mainsail should be reefed a little early rather than
too late.