Lowrance AirMap, Инструкция по установке и эксплуатации

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E6B COMPUTER
To help you with flight planning, the AirMap has a computer built into it
that lets you calculate density altitude, true airspeed, wind speed and
direction, plus vertical navigation.
To use this computer, first press the MENU key,
then highlight the “E6B Computer” label. The screen
shown at right appears. Highlight the desired mode
and press the right arrow key.
Density Altitude/True Airspeed
To calculate density altitude or true airspeed, sim-
ply highlight each item on the list at right. You’ll
need the indicated altitude “I ALT”, barometric pres-
sure (BARO) in inches of mercury, outside air tem-
perature (TEMP), and calibrated airspeed (CAS).
On the example shown at right, the indicated alti-
tude is 5500 feet, barometric pressure is 30.02”,
outside air temperature is 67° Fahrenheit, and the
calibrated airspeed is 129 knots. This gives us a
pressure altitude of 5407 feet, a density altitude of
7141 feet, and a true airspeed of 143.6 knots. Ob-
viously, you don’t need an airspeed to calcu-
late density altitude, this was done for illustration
purposes.
Wind Speed/Direction
To determine the wind speed and direction, first
solve for true airspeed on the previous screen.
Then, highlight “Wind Spd/Dir” on the “E6B Com-
puter” menu. A screen similar to the one at right
appears. With true airspeed solved, the only other
thing necessary for the unit to determine the wind
is your course over ground (CRS). In this example,