Operational Navigation
Systems Navigation
WAYPOINT OFFSET
Each waypoint can have a defined offset
(O/S), or none. The options and headers for
Sequential
Steering String
offset data entry are displayed on the
waypoint display (Figure 7). Offset entry
options are located on the left bezel of the
MFD: range (RNG O/S), magnetic bearing
(BRG O/S) and elevation (ELEV O/S). Offset
data entry, using the DEP and scratchpad, is
enabled when one of the O/S options is
selected. No offset data is displayed if range
is set at 0.0 nm. Range is limited to 0.0 to
99.9 nm in tenth of a mile increments.
Bearing is 000 to 359.9 degrees in tenths of a
degree increments (360 may be entered for
000). The decimal is not displayed on the
scratch pad, but is automatically entered
before the last digit, once the data is entered
into the system. The decimal is displayed in
the offset data block. Elevation initializes to
the associated waypoint elevation and is
limited from -999 to 9999 feet in one foot
increments. Changing the position of the
waypoint after entering offset data automati-
Figure 9: WAYPOINT SEQUENTIAL NAVIGATION--CDI
cally sets offset data for that waypoint to zero
and all offset data is blanked (Figure 8).
WAYPOINT SEQUENCING
Waypoint sequential navigation allows the
pilot to select the sequence of waypoints
LAT
LONG
ELEV
MVAR
when sequential (SEQ) is selected on the HSI
R0
N/
display (Figure 9). On power-up, waypoint
GS
data initializes with the last entered waypoint
WYPT
8-XROAD
sequence string displayed across the bottom
B0
R/
LAT
N
42 18 31
of the waypoint display (Figure 10).
GS
LONG
W
87 11 19
8
ELEV
3211
E
MVAR
E 01
L0
Selecting (boxing) SEQ DEP blanks the old
E/
O/S
RNG 10.0 NM
VS
waypoint sequence string and enables the
O/S
BRG 170.0
O/S
ELEV
300
DEP and scratchpad for entry of a new string.
H
S
Selecting a waypoint number on the DEP and
00.04.05.07.06.04
I
depressing ENT inserts the waypoint into the
SP5
9
A
string. As each waypoint is entered, the
SD
D
EE
waypoint number is displayed in the order in
I
QP
ACFT
GPS
MENU
which it is entered, from left to right. Up to ten
waypoints can be entered into the string, and
multiple entry of the same waypoint is
allowed. An invalid waypoint entry (a number
Stored Sequential
Sequential String
Steering String
Entry Selection Option
greater than 10) will flash until cleared by
depressing CLR on the DEP. Selecting SEQ
DEP option on the waypoint display or
Figure 10: WAYPOINT SEQUENCE ENTRY
entering the tenth waypoint will save the
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