Lowrance electronic AirMap 2000C - Manual (Page 61)

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E6B Altitude/Airspeed Calculator
E6B Wind Speed/Direction Calculator
To determine the wind speed and direction, first find true airspeed us-
ing the Altitude/Airspeed Calculator (see above). Once you have that,
open the Wind Speed/Direction Calculator. To get to the wind
speed/direction calculator menu: while in Aviation Mode, press
MENU | MENU |
↓ to
A VIATION C ALCULATORS
| ENT |
↓ to
E6B W IND
S
PEED
/D
IR
| ENT .
A screen similar to the one in the following image appears. The current
true airspeed is automatically used, and you only need to enter your
heading. Use the arrow keys to change the heading in the box at the top
of the screen.
In the example shown, the heading is 39° magnetic. This gives us a
wind speed of 11.5 knots on a bearing of 44° magnetic, for an 11.4 knot
headwind.
E6B Wind Speed/Direction Calculator