Garmin GPS 100 User Manual download pdf (Page 55)

9-4

airspeed, use indicated airspeed instead.

· Enter your altimeter setting.

· Enter the total air temperature (TAT). TAT is the temperature of the

air including the heating effect caused by speed (the temperature read

on a standard outside air temperature gauge found on most piston

aircraft is TAT). The GPS 100 will display the resulting density altitude

and true airspeed.

The TAS computed on this page will automatically become the default value

used in the wind aloft calculations described in the following section.

9.4 WIND ALOFT (Aviation Feature)

Heading

True Airspeed

Wind Direction

(from) Wind Speed

Head/Tail Wind

WIND ALOFT PAGE

The Wind Aloft Page allows you to calculate the direction and speed of the

wind. This calculation requires TAS and heading information. If you have

calculated TAS on the Density Altitude/TAS Page, it will be offered as the

default.

To calculate wind aloft...

· Enter your present heading.

· Enter the TAS (optional if you have computed TAS on the Density

Altitude/TAS Page). The GPS 100 will display the wind direction,

speed, and the head/tail wind you are encountering.

9.5 VERTICAL NAVIGATION (Aviation Feature)

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Garmin GPS 100 User Manual Page 55