曝光台 注意防骗
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[Figure 7-7] This will be your intercept angle to capture the
RB. Hold this heading until the needle is deflected 20° in
the opposite direction. That is, the deflection of the needle
equals the interception angle (in this case 20°). The track has
been intercepted, and the aircraft will remain on track as long
as the RB remains the same number of degrees as the wind
correction angle (WCA), the angle between the desired track
and the heading of the aircraft necessary to keep the aircraft
tracking over the desired track. Lead the interception to avoid
overshooting the track. Turn 10° toward the inbound course.
You are now inbound with a 10° left correction angle.
NOTE: In Figure 7-7, for the aircraft closest to the station, the
WCA is 10° left and the RB is 10° right. If those values do
not change, the aircraft will track directly to the station. If you
observe off-course deflection in the original direction, turn
again to the original interception heading. When the desired
course has been re-intercepted, turn 5° toward the inbound
course, proceeding inbound with a 15° drift correction. If the
initial 10° drift correction is excessive, as shown by needle
deflection away from the wind, turn to parallel the desired
course and let the wind drift you back on course. When the
needle is again zeroed, turn into the wind with a reduced
drift correction angle.
7-6
OBS
N
E
S
W
333
24
21
15
12
306
OBS
N
E
S
W
3
33
24
21
15
12
306
NAV
GS
33
30
24
21
15
12
6
3
W
S
E
N
HDG
OBS
N
E
S
W
3
33
24
21
15
12
30
6
OBS
N
E
S
W
3
33
24
21
15
12
30
6
NAV
GS
33
30
24
21
15
12
6
3
W
S
E
N
HDG
OBS
N
E
S
W
3
33
24
21
15
12
306
OBS
N
E
S
W
3
33
24
21
15
12
306
NAV
GS
33
30
24
21
15
12
6
3
W
S
E
N
HDG
OBS
N
E
S
W
3
33
24
21
15
12
30
6
OBS
N
E
S
W
3
33
24
21
15
12
30
6
NAV
GS
33
30
24
21
15
12
6
3
W
S
E
N
HDG
OBS
N
E
S
W
3
33
24
21
15
12
306
OBS
N
E
S
W
3
33
24
21
15
12
306
NAV
GS
33
30
24
21
15
12
6
3
W
S
E
N
HDG
ADF
HDG 050° CRS
050°
ADF
HDG 360° CRS
360°
ADF
HDG 330° CRS
330°
ADF
HDG 320° CRS
320°
ADF
HDG 310° CRS
310°
DG
DG
DG
DG
33
30
24
21
15
12
6
3
W
S
E
N
33
30
24
2I
I5
I2
6
3
33
30
24
21
15
12
6
3
W
S
E
N
33
30
24
2I
I5
I2
6
3
33
30
24
21
15
12
6
3
W
S
E
N
33
30
24
2I
I5
I2
6
3
33
30
24
21
15
12
6
3
W
S
E
N
33
30
24
2I
I5
I2
6
3
WIND
33
30
24
21
15
12
6
3
W
S
E
N
33
30
24
2I
I5
I2
6
3
Figure 7-6. ADF homing with a crosswind.
Station
OBS
N
E
S
W
3
33
24
21
15
12
306
NAV
GS
View is from the pilots
perspective, and the
movable card is reset
after each turn
Figure 7-6. ADF Homing With a Crosswind.
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Instrument Flying Handbook仪表飞行手册下(11)
