TM 1-1510-218-10
3C-96
Figure 3C-40. Manual Sequencing and TACAN
Emulation
Table 3C-32. Manual Sequencing and TACAN
Emulation Procedure
NO.
DESCRIPTION/FUNCTION
1
Enter TACAN identifier or waypoint.
2
Select MAN advance (if desired) to
prevent waypoint passage into history.
3
Enter the desired/published course in the
scratchpad.
4
Enter the course to/from the waypoint.
5
A FROM indicator is provided when the
station is passed. The waypoint does not
move into history.
6
Indicates type of course entry: Computed
(blank), Manual (man), or Direct-To
computed (dir).
(c) Modifying
the
FROM
Waypoint.
When scrolling back into the history waypoints, the
waypoint immediately preceding the active waypoint is
the current FROM waypoint. The FMS normally
provides steering to intercept the course between the
FROM and TO waypoints. By entering a new FROM
waypoint, the FMS steers to intercept a new course
between the newly entered FROM and original TO
waypoints. Figure 3C-41 is an example of the effect of
modifying the FROM waypoint on guidance to the
active waypoint.
(6) Waypoint Steering Data. Once an active
flight plan is entered, the FMS-800 computes the
pilot’s steering solution. The nomenclatures on the
CDU refer to the steering data that is entered into the
pilot’s flight instruments.
(a) Display of Pilot’s Steering Data.
When the STR function key is pressed, the CDU
displays the Pilot’s Lateral Steer page. Refer to Figure
3C-42 and Table 3C-33. The pilot’s steering uses
GPS as its single navigational source.
