The en route-obs mode, Effects of switching from en route-obs – BendixKing KLX 135 - Pilots Guide User Manual

Page 106

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illustrate this concept is with a world globe and a piece of string.
You can determine the great circle path between Denver,
Colorado and Manila, Philippines by stretching the string over the
globe between these two points. Notice that you would start the
flight with a northwesterly desired track, which gradually
becomes due westerly, and finally southwesterly by the time you
reach Manila. Of course, your trips with the KLX 135 will be
substantially shorter and the desired track will probably change
only a few degrees.

3.

Automatic waypoint sequencing is provided during flight plan
operation. As you reach a waypoint in your flight plan, the next
leg of the flight plan automatically becomes active.

4.

Turn anticipation may be utilized in flight plan operation as
described in

section 4.10.2

.

5.3.3.

THE EN ROUTE-OBS MODE

The following are characteristics of the En Route-OBS mode.

1.

(Same as item 1 for En Route-Leg mode) The course deviation
indicator (CDI) sensitivity is plus and minus five nautical miles,
full scale. This applies to the CDI on the NAV 1 page as well as
any external CDIs or HSIs interfaced to the KLX 135. If the CDI
or HSI has five dots left and right of the center position, then
each dot represents one nautical mile of deviation.

2.

The course is defined by the active waypoint and the selected
magnetic course. A course "to" or "from" the active waypoint
may be selected.

3.

There is no automatic leg sequencing or turn anticipation.

4.

When the active waypoint is a VOR, the published magnetic
variation for the VOR is utilized rather than the calculated
magnetic variation.

5.3.4.

EFFECTS OF SWITCHING FROM EN ROUTE-OBS

MODE TO EN ROUTE-LEG MODE

The following mode transition occurs if the KLX 135 is in the En
Route-OBS mode with a TO indication and the mode is switched to
the En Route-Leg mode:

1.

The waypoint that was active while in the OBS mode remains the
active waypoint when the En route-Leg mode is activated. The

KLX 135 Pilot’s Guide Advanced GPS Operation

5-11 Effective Date 6/95

006-08751-0000 Rev 1

Advanced GPS Operation

Chapter 5

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