Esterline CMA-9000, Руководство оператора

Страница: 237 / 802

OPERATOR’S MANUAL
CMA-9000 FLIGHT MANAGEMENT SYSTEM
Page 11-35
November 19, 2009
BACKTRACK ROUTE (If configured)
The CMA-9000 FMS provides an backtrack route function which retraces the route flown allowing an aircraft to
fly back, from the present position to the origin, following the same sequence of waypoints flown but excluding
any waypoints associated to the following special procedures:
•
STAR;
•
SID;
•
APPROACH;
•
TACTICAL APPROACH
•
HOVER,
•
SAR (LADDER, SQUARE, and SECTOR patterns),
•
HOLDING.
NOTE: The origin of a SAR or HOLDING procedure is included in the inverse route.
When a manual Direct-To or a Direct-To with Intercept is performed in the active route, the CMA-9000 FMS
adds a temporary waypoint to the inverse route to mark the present position except when on ground or during
the special procedures mentioned above.
All legs in the backtrack route are flown as Track between two Fixes (ARINC 424 TF leg type), except for the
first leg, which is flown as a Track between two Fixes (ARINC 424 TF leg type) only if the previously flown leg is
preserved. Otherwise, the first leg is flown as a Direct To Fix (ARINC 424 DF leg type).
Activation of the backtrack route while in-flight is configurable with two following options. The resulting modified
route consists of:
A. Configuration Option 1 (default)
If a current active TO waypoint is defined:
•
the current active TO waypoint, starting at the Top waypoint location on the MOD LEGS page,
followed by a discontinuity, then
•
a temporary waypoint to mark the present position and then
•
the waypoints of the backtrack route.
Otherwise,
•
a temporary waypoint to mark the present position, starting at the Top waypoint location on the MOD
LEGS page; then
•
the waypoints of the backtrack route.
B. Configuration Option 2
•
the first waypoint of the backtrack route, starting at the Top waypoint location on the MOD LEGS page,
which is the last overflown waypoint with its course set in the opposite track direction (e.g. original
track - 180º); then
•
the remaining waypoints of the backtrack route.
Following activation of the backtrack route while on ground, the resulting modified route consist of the waypoints
of the backtrack route, starting at the Top waypoint location on the MOD LEGS page, regardless of the selected
configuration option.
This page is printed under user's responsibility
and must not be retained for reference