Raymarine T210 User Manual page 13

Sailing Downwind
Sailing downwind, it is rarely fastest to aim directly for the mark. Usually
it is better to sail at a higher angle to increase boat speed and gybe as
necessary to reach the mark. The increase in speed can more than
compensate for the additional distance sailed. In technical terms, you
aim to maximise your VMG (Velocity Made Good) towards the mark.
Sailing in Tidal Waters
When you are sailing in tidal conditions, your boat's actual Course Over
the Ground (COG) and Speed Over the Ground (SOG) may differ
considerably from the heading of the boat and the speed through the
water shown by the speed sensor.
The Maxi Display provides the following functions to make your tidal
navigation easier.
Turn
angle of turn is displayed.
Course
www.tacktick.com
Use VMG-WP (VMG to Waypoint) together with the True
Wind Angle to optimise your VMG to the downwind mark
Use the SHIFT page to help you time your gybes. Aim to
gybe on lifts, to keep sailing on the headed tack.
When steering towards a waypoint in tidal conditions, it is
often difficult to assess the course to steer to keep on the
direct track to the mark. Your Maxi Display automatically
indicates when the course you are steering is taking you off
the direct track to your waypoint. The direction and required
Used in similar circumstances to the Turn page, the Course
page shows the course to steer to track directly to the
waypoint.
Performance Functions
11