For Training Purposes Only
Sept 04
2-23
P I L O T T R A I N I N G G U I D E
AUTOMATIC FLIGHT CONTROL SYSTEM
Back Course (BC) Mode
Back course mode provides for automatic intercept, capture, and tracking of the back
course localizer signal.
BC mode is identical to LOC mode except that the transmitter is located 2000 feet in
front of the touch-down point. The course arrow must be set to the front course runway
heading. The FGC will invert the course and radio deviation signals to provide correct
back course steering commands.
As BC moves from ARMED to ACTIVE, the BC will flash for approximately 5
seconds, when active.