Boeing 787-8 - Engine out Cruise

787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Flight Management, Navigation -
FMC Cruise
Copyright © The Boeing Company. See title page for details.
11.42.20 D615Z003-TBC
RTA/ECON
• Push – selects RTA speed mode. Displays ECON prompt.
• Displays when an RTA waypoint is in the flight plan and VNAV is not in
the RTA mode
Displays estimated time of arrival and calculated fuel remaining at the destination.
Displays the same data for the alternate airport when a DIVERT NOW
modification is selected from the ALTN page.
Line title displays ETA/FUEL W/MOD when a route modification is pending .
Calculations are based on optimum step climbs and cruise altitudes.
Push –
• displays MOD XXX CRZ page title; XXX is the active all engine CRZ
speed mode before ENG OUT is selected
• changes command speed line title to EO SPD
• below engine-out maximum altitude: upon execution, thrust reference limit
changes to CON and page title becomes ACT EO CRZ
• above engine-out maximum altitude: sets CRZ ALT to engine-out
maximum altitude; and upon execution, thrust reference limit becomes
CON and page title becomes ACT EO D/D
Push – displays long range cruise page.
Engine Out Cruise
Engine out VNAV guidance displays on the EO CRZ or EO D/D page. Engine-out
data is also available with both engines operating by selecting the ENG OUT
prompt.
The modified page displays engine-out performance information. When above the
maximum engine-out cruise altitude, VNAV calculates engine-out guidance for
drift down (D/D). The EO D/D page changes to the EO CRZ page when reaching
the engine-out cruise altitude. Subsequent engine-out cruise climb or descent is
accomplished the same as two engine cruise climb or descent.
As the airplane gross weight decreases, maximum altitude increases. A step climb
may be possible under these conditions.
The example is based on a cruise altitude above the maximum engine-out altitude.
When ENG OUT is first selected, the default target speed is EO SPD.
7
Destination ETA/FUEL
8
Engine Out (ENG OUT)
9
Long Range Cruise (LRC)
February 15, 2010