BendixKing KLN 94 - Pilots Guide - Manual (Page 80)

active waypoint while a “down” trian-
gle (figure 3-109) indicates “from” the
active waypoint. The word FLAG is
displayed over the CDI when the
KLN 94 is not usable for navigation
(figure 3-110).
Line 3: Numeric crosstrack correc-
tion – the crosstrack distance (how
far off course) and direction to fly to
intercept the desired track. The
numeric crosstrack correction dis-
tance display is especially handy
when more than five nautical miles
off of course. If your crosstrack dis-
tance was 13.1 nautical miles left of
course, the graphic CDI needle will
be pegged on the right side (which
doesn’t tell you much). But this pre-
sentation will show you exactly how
far off course you are (figure 3-111).
The CDI scale factor is also displayed on line 3. This is the full scale devi-
ation. Normal en route CDI scale factor is ± 5 NM which means each dot
represents 1 NM of deviation off course. The CDI scale factor may be
changed as described in section 5.6. “Changing The CDI Scale Factor.”
Line 4: VNAV status, which will either by Off, Armed, time until VNAV
begins, or the suggested VNAV altitude (see section 5.2. “Advisory VNAV
Operation.”
Line 5: A data field which can display either bearing to the active way-
point (To) or radial from the active waypoint (Fr). By placing the cursor
over this field and turning the right inner knob you may select which of
these is displayed. Line 5 also displays the estimated time en route (ETE)
from present position to active waypoint.
NOTE: Due to “great circle” courses and magnetic variation differences
between present position and the active waypoint, the To bearing and
From radial may not be exactly 180° different from each other when the
system is in the Leg mode. This condition is most likely to occur when
long distances are involved, and/or you are operating in very northerly or
southerly latitudes. See figure 3-112 for an example depicting a case like
this. The aircraft is somewhere over Georgia, and the active waypoint is
KPHX. The bearing to steer is 269°, and radial is 72°. Generally, you will
want to use bearing (not radial) when long distances are involved.
Chapter 3 Basic GPS Operation
3-38
Figure 3-110
Figure 3-111
Figure 3-109