King Air C90GTi, Руководство по подготовке пилотов

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16-49
FOR TRAINING PURPOSES ONLY
be used when flying enroute VNAV and when
flying an approach to MDA. This selection
does not include localizer based procedures
which are flown with a NAV-to-NAV capture
function of the FMS. These approaches re-
quire the APPR mode for the NAV-to-NAV
function to operate correctly.
Figure 16-87. VNAV Top of Descent
When the APPR and VNAV modes have been
selected during a final approach segment, the
annunciation will be VGP. VGP will cause the
FGS to “ignore” the preselected altitude and
VNAV altitudes. This allows it to follow the
glidepath all the way to DA. This can be veri-
fied by the lack of an armed altitude mode on
the PFD. Caution must be used when operat-
ing in this mode because it will not level off at
any altitude. The APPR and VNAV modes
should be used when flying an approach to a
DA. The exception is a localizer-based ap-
proach procedure which uses the NAV-to-
NAV capture function even though it may
only have MDA minimums published.
NAV +VNAV
APPR + VNAV
Figure 16-88. VNAV Modes
Additionally, VNAV can be used during an al-
titude restricted climb. The FGS will be in
NAV and VNAV modes and never in APPR
mode. The same three conditions mentioned
for a VNAV descent apply here too. The initial
climb from the airport will be accomplished by
any manually chosen vertical mode (VS or
FLC). When VNAV is selected, the altitude
preselector is then placed at the highest au-
thorized altitude and the FGS will level off at
each intermediate VNAV altitude. Once lev-
eled off at the intermediate altitude, FLC will
arm indicating there is another climb. Passing
the altitude restricted fix, FLC will become the
active vertical mode at the aircraft’s current in-
dicated speed. The pilot must now change the
FLC speed and aircraft power for the climb.
The aircraft will level off at the next altitude
restricted fix and FLC will arm again. This
Collins
BRT
DIM
10
10
20
FMS VALT
PATH
3
000
6
60
540
20
400
600
700
1
2
4
4
2
1
30.16IN
<
PRESET
VOR1
FORMAT >
FMS1
DTK 251
RALPE
5.
2NM
5
251
W
30
24
21
ATC1 UTC RAT COM1 COM2 121.800 4336 125.250 14:41 15 o C
<
4000
RDR
TERR
<
ET
01:42
10
TFC >
>
RALPE
JABAN
TOD
TOD
185
180
160
120
DN
100
14 1
0
Collins
BRT
DIM
10
10
20
FMS VPATH
3
000
6
60
540
20
400
600
700
1
2
4
4
2
1
30.16IN
<
PRESET
VOR1
FORMAT >
FMS1
DTK 251
RALPE
2.
5NM
5
251
W
30
24
21
ATC1 UTC RAT COM1 COM2 121.800 4336 125.250 14:41 15 o C
<
4000
RDR
TERR
<
ET
01:42
10
TFC >
>
RALPE
JABAN
TOD
TOD
185
180
160
120
DN
100
14 1
0
1000
ALTS
Collins
FMS VPATH
ALTS
3
000
4
4
4
2
<
4000
R
185
Collins
APPR FMS VGP
3
000
4
4
4
2
<
4000
R
185
KING AIR C90GTi/C90GTx PILOT TRAINING MANUAL
16
A
VIONICS