BENDIX/KING
KAP 140
Page 2--17
Revision 2, Dec/2002
CS:15574F02.IDU
2.10.2.5 Autointercept Mode
For DG installations, the FCC provides an automatic 45 degree intercept of the selected navigation
course when the system is in HDG mode and NAV ARM or APR ARM or REV ARM is engaged.
The system will transition to autointercept mode. This mode is indicated by a blank roll coupled
field with a lateral arm mode annunciated (e.g. NAV ARM). For the first five seconds after
engagement, autointercept mode will ignore the datum input (to allow the pilot to reposition the
heading bug to the desired course). After the five seconds have elapsed, an offset of 45 degrees
to the heading bug (“course pointer”) will be tracked (with the proper polarity to intercept the NAV
deviation).
2.10.2.6 Heading Bug Prompting
Whenever a lateral arm mode is selected in a DG installation, the roll coupled field will flash HDG
for five seconds to remind the pilot to set the heading bug to the proper course. After five seconds,
the annunciation will change to the proper annunciation for the engaged roll mode: ROL for the
default mode or blank for the autointercept mode.
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