TM 55-1520-240-23-9
11-277
BENCH TEST AFCS COMPUTER (AVIM)
(Continued)
11-277
707.
Set CCW-CW switch (71) to CCW. Read and
record V4 AC/DC VOLTMETER (10) reading.
708.
Set CCW-CW switch (71) to OFF.
709.
Set DEGREES PER MINUTE knob (72) to STOP.
710.
Calculate V5. Subtract reading of step 702 from
reading of step 707 (V5 = V4 - V1). Result shall
be +2.87 to +4.80.
711.
Set DEGREES PER MINUTE knob (72) to 360.
712.
Set CCW-CW switch (71) to CW. Read and
record V6 AC/DC VOLTMETER (10) reading.
713.
Set CCW-CW switch (71) to OFF.
714.
Calculate V7. Subtract reading of step 702 from
reading of step 712 (V7 = V6 - V1). Result shall
be -5.75 to -9.61.
715.
Set CCW-CW switch (71) to CCW. Read and
record V8 AC/DC VOLTMETER (10) reading.
715.
Set CCW-CW switch (71) to OFF.
717.
Calculate V9. Subtract reading of step 702 from
reading of step 715 (V9 = V8 - V1). Result shall
be +5.75 to +9.61.
Do not move computer for five
minutes after removal of power;
otherwise, damage to yaw gyro can
occur.
718.
Set AFCS power switches (1 and 2) to OFF.
719.
Set DEGREES PER MINUTE knob (72) to STOP.
720.
Remove computer (69) from rate table (70).
END YAW RATE TEST
11-1131
