OPERATOR’S
MANUAL
CMA-9000 FLIGHT MANAGEMENT SYSTEM
Page
9-4
November 19, 2009
C. DIRECT-TO
A
WAYPOINT
IN THE INACTIVE ROUTE
1. Display the inactive RTE x LEGS 1/X page by pressing [RTE] followed by LSK 6L <RTE 2> or <RTE 1>
(e.g: In order to access whichever is the inactive route, e.g: RTE 1 or RTE 2).
NOTE: The active RTE page field will show the text “ACT” to the left of the title of the RTE page when a
route/flight plan exists whereas the inactive route does not show the text “ACT”.
2. Display the desired waypoint by pressing [NEXT] or [PREV] as required.
3. Key in, or copy the waypoint identifier into the scratchpad by pressing the appropriate LSK.
4. Return to the first inactive RTE x LEGS 1/X page by pressing [LEGS] or [PREV] as required.
5. Move the waypoint identifier to the TO WPT field by pressing LSK 1L.
6. Verify the inbound course and distance of the leg to the TO WPT.
Information on any other page can be verified prior to making the direct-to leg active.
7. Insert the direct-to leg in the inactive route by pressing <CONFIRM>.
NOTE: A direct to a waypoint may also be achieved by using the DIRECT-TO prompt.
NAVIGATION OF DIRECT-TO WITH INTERCEPT
When the Intercept Course function is executed (EXEC key pressed), which may be performed either on the
ground or airborne, the navigation and guidance data output by the CMA-9000 FMS (desired track, track angle
error, crosstrack distance) are relative to the specified intercept course inbound to the waypoint. The mode used
is dependent on the aircraft installation. The CMA-9000 FMS initially enters a Track Hold mode (TRK
configuration) or a Heading Hold (HDG configuration) mode or keeps the wings level (LEVEL configuration) prior
to capturing the intercept leg.
A. When configured for constant track (TRK), or constant heading (HDG), the CMA-9000 FMS enters the
Track/Heading Hold mode when the following conditions are satisfied (refer to Figure 9-1):
•
The direct-to/intercept function has been executed (EXEC key pressed).
•
The aircraft is airborne and on a valid intercept track/heading.
•
The LNAV mode of the autopilot/flight director (AP/FD) system is engaged.
The order in which the conditions occur is not important. When all three conditions are satisfied, the current
aircraft track/heading is maintained until the intercept leg is captured by the lateral steering function of the
CMA-9000 FMS, or until LNAV is disengaged. If LNAV is disengaged and a new track/heading is
established, re-engaging LNAV will cause the CMA-9000 FMS to maintain the new track/heading.
When the CMA-9000 FMS is in Track/Heading Hold mode, continuous checks are performed by the CMA-
9000 FMS to determine if the intercept is achievable. These checks are performed when Track/Heading
Hold is first activated and are repeated periodically until the leg is captured by the CMA-9000 FMS steering
function.
Cancellation of Track/Heading Hold occurs under the following conditions:
CAUTION:
Paragraph 1. below may result in a small track/heading change.
This page is printed under user's responsibility
and must not be retained for reference
