Lowrance electronic AirMap 1000 - Manual (Page 55)

49
box at the bottom of the screen says "Extend" next to the runway name.
(As long as we have sufficient information about it in our database, Air-
Map can display a runway extension for any runway.) Press
ENT and the
unit will ask "Do you want to setup Runway Guidance?" Press
→ to
N
O
| ENT . The runways screen will go away, returning you to the airport
information screen. Now you can press EXIT | EXIT to see the runway ex-
tension on the map.
Runway guidance selection message.
Runway extensions are meant to serve as visual references to help you
orient the plane as you approach an airport for a landing. The exten-
sion appears as a fan-shape, with its tip pointing directly to the touch-
down zone or threshold of the runway you're approaching. This allows
you to navigate toward the wider end of the fan, so once you turn down
the extension you can easily judge how far you've got to touch-down.
To turn off an airport extension, press MENU |
↓ to
C LEAR R UNWAY
E
XT
| ENT | EXIT .
Runway Approach Guidance feature
The AirMap also uses the Runway Extension command to extend a lo-
calizer-type display to the landing runway; we call it the Runway Ap-
proach Guidance feature. After selecting a runway extension (see in-
structions at the bottom of the previous page) the unit will ask "Do you
want to setup Runway Guidance?"(See the previous image.) If you want
the AirMap to navigate a localizer-type approach select
Y
ES
and press
ENT .(Select N O
if you want to continue your own navigation with a regu-
lar runway extension.)
When you select Runway Guidance, the unit will display a localizer-
type fan and create a route automatically for guidance down the run-
way's extended centerline. Once selected, however, you are no longer
navigating your earlier route, because the AirMap assumes you are on
radar vectors or your own vectors to intercept final.
The HSI and all other CDI displays will now be set to the inbound run-
way course and will give guidance to left or right of centerline via the