Section 7 IFR Procedures
1
st
Ed Nov 2018
IDU-450 EFIS Software Version 8.0H (Rotorcraft)
7-25
Figure 7-12: Parallel Offset PTK-/PTK ENDING
The EFIS provides guidance to parallel tracks at a selected offset distance.
When executing a parallel offset, navigation mode and all performance
requirements of the original route in the active flight plan are applicable to
the offset route. The EFIS provides for entry of offset distance in increments
of 1NM, left or right of course, and is capable of offsets of at least 20NM.
Offset mode is indicated with an advisory flag, e.g.,
.
When in offset mode, the EFIS provides reference parameters (e.g., cross-
track deviation, distance-to-go, time-to-go) relative to the offset path and
offset reference points.
Once a parallel offset is activated, the offset remains active for all flight plan
route segments until removed automatically (transitioning through a parallel
track exit waypoint), until the flight crew enters a “Direct-To” routing or
activates a new flight plan route, or until (manual) cancellation.
NOTE:
If a parallel offset is entered in the active flight plan and then cancelled,
that active flight plan is no longer eligible for configuring another parallel
offset without deleting and reopening due to the creation of a
discontinuity.
Table 7-6: Parallel Offsets Symbols and Description
Symbol Description
Parallel offset has been created and has a
designated ending waypoint.