Lowrance 1000 操作指南

54

speed/direction calculator menu: while in Aviation Mode, press

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↓ to 

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↓ to 

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.

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

Vertical Navigation Calculator
With the Vertical Navigation Calculator, the AirMap 1000 can help you
decide when to let down for an approach to an airport. To get to the verti-
cal navigation calculator menu: while in Aviation Mode, press

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↓ to 

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↓ to 

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.

(The command only works when you are navigating to a waypoint.)

In the following example, we're travelling to the Wichita Mid-Continent
airport in Wichita, Kansas. It’s identifier is shown at the bottom of the
screen – KICT. We are travelling at 4500 feet, and need to be at the pat-
tern altitude (about 2300 feet) by 5 nautical miles from the airport using a
450 fpm descent.

After determining the above information, use 

↑ or ↓ to highlight each

field, then press 

. In each box, use the arrow keys to enter the data.

When you’re finished, highlight 

 next to the "Vertical Nav" label and

press 

. A screen similar to the one below appears.