TM 55-1520-240-23-9
11-280
AFCS INTERFACE TEST
(Continued)
11-280
TEST 17
DIRECTIONAL GYRO OUTPUT TEST (BOTH)
109.
Set AFCS SYSTEM SEL switch (1) to 1 or 2.
(System under test.)
110.
Set METER SOURCE switch (3) to GYRO TEST.
111.
Set GYRO TEST SIGNAL MONITOR switch (40)
to HDG.
112.
Set GYRO TEST SIGNAL MONITOR switch (41)
to XY. Read digital display (6). Record reading.
113.
Set GYRO TEST SIGNAL MONITOR switch (41)
to YZ. Read digital display (6). Record reading.
114.
Set GYRO TEST SIGNAL MONITOR switch (41)
to ZX. Read digital display (6). Record reading.
115.
Set GYRO TEST SIGNAL MONITOR switch (41)
to XY.
116.
Add algebraically recorded readings of steps
112, 113, and 114. The sum shall be -0.5 to
+0.5.
EXAMPLE
XY
=
+12.1
YZ
=
-8.2
ZX
=
-4.3
SUM
=
-0.4
END DIRECTIONAL GYRO OUTPUT TEST (BOTH)
11-1190
