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To Calculate Winds Aloft (wind) And Headwind/tailwind; Component (comp); Vertical Navigation (vnav) - Honeywell KMD-150 Pilot's Manual

Multifunction display/gps.
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E6-B Calculator
3. Move the cursor over the entry field next to the heading PRESS and
enter the atmospheric pressure in either inches of mercury (Hg) or mil-
libars (mb). Default value is 29.92Hg / 1013mb.
4. Move the cursor over the entry field next to the heading TAT and
enter the total air temperature read from your external aircraft ther-
mometer in either F or C. Default value on entry to this Screen is
59F/15C.
The calculated density altitude (DALT) and true airspeed (TAS) will now
be correctly displayed in the lower half of the Screen.
TO CALCULATE WINDS ALOFT (WIND) AND HEADWIND /
TAILWIND COMPONENT (COMP)
1. Ensure you have followed the previous four steps so that TAS has
been correctly calculated.
2. Move the cursor over the entry field next to the word HDG and enter
the magnetic heading of the aircraft from your compass or DI. Default
value on entry to this Screen is GPS track
The wind direction and speed (WIND) along with the head or tailwind
component (COMP) will now be displayed in the lower half of the
Screen.
When the wind has been calculated and you return to the map Screen
by pressing Key 5, MAP, a wind arrow will be displayed on screen, cor-
rectly orientated and pointing at the aircraft icon to give a visual repre-
sentation of the wind direction with respect to the aircraft. The wind
arrow will disappear after 30 seconds.

VERTICAL NAVIGATION (VNAV)

VNAV is a function that tells the pilot when to start descending or
climbing in order to reach a certain altitude at a certain distance from the
next user waypoint and is entered by pressing Key 3, VNAV, on
Screen
57,
E6-B Calculator Cover Screen. This function is not available in
External GPS mode.
This function can only be switched on when a Flight Plan is being flown
or a DIRECT TO is being executed, in other words, when there is a valid
destination user waypoint.
82
Rev 1 Mar/2000
KMD 150 Pilot's Guide

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