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RayTech Navigator User’s Guide
5-62
Using the Upwind, Downwind, and Vmc Plot Screens
The Upwind, Downwind, and Vmc Plot (Velocity Made good on
Course) screens enable you to directly analyze those aspects of the
Polar plot by reducing the display content to only those elements.
The Upwind Plot screen (Figure 5-19) calculates the best angle and
boat speed when sailing upwind and displays:
• Velocity Made Good relative to True Wind Angle – click
Vmg to view, then select the True Wind Speed range to plot
by clicking on the Tws (kts) up/down arrows or by entering
numbers directly.
• Boat Speed relative to Tws – click Bsp to view.
• True Wind Angle relative to Tws – click Twa to view.
Figure 5-19. Upwind Plot Screen