曝光台 注意防骗
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shows the LOC mode in green which means it is the active lateral mode and the autopilot is
tracking the localizer course.
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Approach Mode
APP
The approach mode is used for flying an ILS approach. Selection of APP arms the LOC and G/S
capture. Until the localizer and glideslope are captured the ALT HLD and HDG HLD modes are
still active. This is considered a 'Category 1' approach without any autoland capability because
only one autopilot is engaged.
Once the APP mode is engaged using a single autopilot operation, the only methods to disengage
it are:
1. Selection of go around (Ctrl-Shift-R)
2. Selection of both the HDG HLD and ALT HLD.
3. DISENGAGE the autopilot.
Autoland MODE
The 767 is capable of a complete autoland through the use of multiple autopilot operations. With
the selection of two or more autopilots for an approach (in APP mode) the autoland capability is
armed. There are two types of autoland situations: LAND 2 and LAND 3.
The autoland sequence begins upon issuance of the approach clearance. At some point above
1,500 ft AGL the APP mode must be selected by the pilot. At this time if an autoland is desired
then the selection of additional autopilot channels also be done. Once two or more autopilots are
selected the autoland capability is armed. There will be no notification of autoland status until
1,500ft AGL.
At 1,500ft radio height the AFDS does a system test to determine if all of the criteria are met for
an autoland to occur. Once the computer is satisfied, it will provide notification in the
AUTOLAND STATUS window. If the criteria are not met for an autoland there will be a red
"NO AUTOLAND" notification and a regular Category 1 approach will continue.
At approximately 80 KIAS in the rollout the autopilot will automatically disengage and the
plane must be controlled manually.
Once a LAND 2 or LAND 3 indication is present in the AUTOLAND STATUS window, the
only way to cancel the autoland function is via a go around (Ctrl-Shift-R) or disengaging the
autopilot.
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LAND 2
This situation is created through the selection of 2 autopilots when in APP mode prior to 1,500ft
AGL. This will result in a successful autoland and rollout. This mode is called LAND 2 because
there are only two autopilots operating thus creating a decreased level of redundancy over three
autopilots.
LAND 3
This situation is created through the selection of all three autopilots when in APP mode prior to
1,500ft AGL. This will also result in a successful autoland and rollout. This mode gives the
greatest level of redundancy and safety when performing a Cat III approach.
TEST SWITCHES
Pressing TEST 1 will cause LAND 3 and NO AUTOLAND to appear in the upper and lower
windows. Pressing TEST 2 will cause LAND 2 and NO AUTOLAND to appear in the upper
and lower windows.
P/RST SWITCH
Resets pilot’s annunciators.
ENGINE INDICATION AND CREW ALERTING SYSTEM (EICAS)
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The engine gauges are available in three versions as selected during FS98 installation. The crew
alerting system (CAS) annunciates failures and other systems related conditions.
Engine Indicators
There are three versions of engine gauges. The first one is for aircraft with General Electric
engines installed. GE engines measure power using N1 and thus do not have an EPR gauge.
The second type available is for aircraft with P&W and the third is when Rolls Royce engines
are installed. These engines measure power using primarily EPR with N1 as a backup.
There is a power lever index located on each set of engine gauges. On the GE engine gauges
there is a small yellow pointer with a green V attached to it. On the P&W engine gauges this
pointer is located on the EPR readout. This pointer indicates the position of the power levers and
should correspond to the value shown on the gauge for power output except when making power
changes. This gives an indication of roughly where the power setting will be when adjusting the
throttles.
The VIB gauges display measured vibration for the engines.
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Engine Gauges at Startup
Some of the engine indications are driven by an engine alternator (electrical source) and will not
start to indicate until this power source is available which occurs at around 15% N2. So the
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