Honeywell BENDIX/KING KLN 94, Pilot'S Manual

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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