75
our course is 171° magnetic. This gives us a wind
speed of 11.5 knots on a bearing of 234° true, for
a 6 knot headwind.
To return to a navigation or mapping screen, sim-
ply press the EXIT key twice.
Vertical Navigation
The AirMap can help you decide when to let down
for an approach to an airport. To use this feature,
first press the MENU key, then highlight the “E6B
Computer” label. Now highlight the “Vertical Navi-
gation” label as shown at right and press the right
arrow key. A screen similar to the one below ap-
pears.
This is the vertical navigation screen. We are trav-
elling to the Wichita Mid-Continent airport in
Wichita, Kansas. It’s identifier is shown at the bot-
tom of the screen - ICT. We are travelling at 4500
feet, and need to be at the pattern altitude (about
2300 feet) by 5 nautical miles from the airport us-
ing a 450 fpm descent.
After determining the above data, highlight each
item on this screen and enter the data. When you’re
finished, highlight the “Vertical Nav” label at the
top of the screen and press the right arrow key. A
screen similar to the one at right appears.
The solution to our vertical navigation problem
shows at the bottom of the screen. Our current
altitude is 4500 feet and at our current airspeed,
we should begin our descent in 48 minutes and 17
seconds. If we maintain a 450 fpm descent in about
48 minutes, then we should reach pattern altitude 5 nautical miles before
we reach the airport.
Summary of Contents for AirMap
Page 1: ...INSTALLATION AND OPERATION INSTRUCTIONS AirMap TM VERSION 3 3...
Page 82: ...78 WINDOW BOXES These boxes are used on Map 3 and Nav 1 only 1 2 3 4 5 6 7 8 9 10 11 12...
Page 83: ...79 13 14 15 16...
Page 84: ...80 WINDOW GROUPS This is a listing of window groups A through O A B C D E F G H I J K L...
Page 85: ...81 M N O...
