Entering And Intercepting A Radial - BENDIXKing AeroNav 910 Pilot's Manual

The default value for the crossing distance is 5.0nm for airports
and 0.0nm for all other waypoints.
The only waypoints that do not permit altitude constraints are:

Origin

Destination, if it has an approach selected

Missed Approach Point

Altitude Terminated Legs

ENTERING AND INTERCEPTING A RADIAL

FMS Method
The FMS Course function will allow the pilot to navigate "To" or
"From" the active waypoint while OBS is selected as the nav
source. Push the Nav Source knob in to make OBS the active
nav mode and then adjust the FMS (OBS) course using the
external course adjust knob (i.e. course set knob on a CDI or HSI
or EFIS). If there is no installed external course setting device,
then twist the AeroNav nav source knob to adjust the FMS
Course value.
FMS Course mode makes the current waypoint act like a VOR.
Select the desired radial to fly inbound or outbound. Adjusting the
course to or from the active waypoint will be reflected by the
To/From flag as in a traditional HSI. The course deviation
indicator will be presented in relation to the selected course.
As the FMS course is adjusted via the external course set knob
(or the AeroNav nav source knob if no external device is
installed), the active leg on the FPL tab will change to "Fly Course
xxx°" as shown in the image below.
FMS Course (OBS)
89000039-010
Rev 1 May 2019
AeroNav 900/880 Series Pilot's Guide
FMS Subsystem 3-17