11 - Flight Management, Navigation Flashcards
The FMC calculates a descent path when ________ based on _________
an arrival or approach procedure is selected on the ARRIVALS page and incorporated into the flight plan
airspeed and altitude constraints and the end of descent (E/D) point
The E/D is located _________ for all approaches except VOR approaches
The E/D for VOR approaches is _______
50 feet above the runway threshold (RW waypoint)
the missed approach point
Resetting the MCP to an altitude below the current cruise altitude causes the new altitude to be copied to the scratchpad if the altitude change is _______
4000 feet or less
What will happen if the altitude set in the altitude window is below the speed transition (SPD TRANS) or restriction (SPD RESTR) altitude displayed on the DES page?
those altitudes and speeds are deleted and the airplane will maintain cruise speed during the descent
(transition or speed restrictions must be maintained by flight crew action)
Does the FMC use the speed set on the MCP for fuel or ETA predictions?
No
so FMC predictions are not accurate if speed intervention is used for an extended period
In VNAV PTH mode, _____ controls speed; in VNAV SPD mode, ______ controls speed
thrust
pitch
If speed intervention is selected during a VNAV PTH descent, (not in approach mode), VNAV PTH pitch mode changes to _______ and the airplane may _____
VNAV SPD
depart the FMC calculated descent path
In approach phase during speed intervention, pitch mode remains in ______ and the vertical path is maintained regardless of ______
VNAV PTH
IAS MACH selector changes
When VNAV is engaged, resetting the MCP to an altitude higher than the current cruise altitude causes ______ , then ______
When executed the airplane will _____
altitude to be displayed in the scratchpad of the CDU
the altitude can be entered on the CRZ ALT line on the cruise page
climb to the new cruise altitude (the CRZ page displays ACT ECON CRZ CLB)
When VNAV is engaged the thrust reference changes to _____
climb
Speed constraint entries require an _______ at the same waypoint
altitude constraint
VNAV varies speed to maintain the path up to the following limits:
15 knots below the target speed, the autothrottle changes from IDLE/HOLD to SPD
VMO/MMO minus 16 knots, the scratchpad message DRAG REQUIRED displays
When does the FMC transitions to “on approach” mode?
- an approach procedure selected into the active route from the destination airport ARRIVALS page becomes the active procedure
- VNAV engaged in DES mode and flaps extended
When does the FMC transition out of ‘on approach’ mode (3)
- the airplane lands
- selecting GA
- the airplane flies beyond the missed approach waypoint
How can you access the C ILS?
EFI Selector
