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Operations
Navigation Information Sub-State
Description of the Direct-To Entry Option
When you use Direct-To, the Active flight plan (and the From, To,
Next information) is automatically updated.
If you use Direct-To to center the CDI needle for the current "To"
waypoint, or skip past the To waypoint to another waypoint already in
the Active flight plan, the current leg number of the Active flight plan
will be updated, if needed, so that the Direct-To waypoint matches the
current "To" waypoint. In these cases, the Direct-To Entry Option is
not a factor.
The Direct-To Entry Option becomes a factor if you go Direct-To a
waypoint which is not in the Active flight plan.
With the May Clear Direct-To Entry Option, the Direct-To waypoint
will be inserted in the Active flight plan, and all of the other waypoints
will be deleted from the Active flight plan.
With the Never Clears Direct-To option, the Direct-To waypoint is
inserted before the current To waypoint.
The May Clear option is useful for the pilot who uses the Direct-To
function for the majority of flight planning, and doesn't want to be
bothered with a steadily increasing number of waypoints in the Active
flight plan. The Never Clears option is useful when you need to vector
off from the Active flight plan's path temporarily, resuming the
previously entered flight plan at a later time.
When you first buy the NMC, the Never Clears Direct-To Entry
option is set. The NMC retains the last Direct-To Entry Option setting
when it is powered up.
You may select which option to use in System Mode, as described
next.
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