(e) Test Aileron Camout Force 1) Slowly apply a clockwise torque to control wheel until wheel begins to move. 2) Record torque value. Repeat 1) for counterclockwise torque. 3) Engage AIL engage switch and ground roll TP-11 and roll TP-14. 4) Maintaining control wheel position at neutral (in detent) with torque wrench, slowly tilt vertical gyro for a left bank. Observe applied torque value builds up to a maximum value and then levels off. Record maximum value. The combined values of 2) and recorded maximum value shall be greater than 7.7 pounds-feet but less than 12.8 pounds-feet. Relevel the gyro. 5) Maintaining control wheel position at neutral (in detent) with torque wrench, slowly tilt vertical gyro for a right bank. Observe applied torque value builds up to maximum value and then levels off. The combined values of 2) and the recorded maximum value shall be greater than 7.7 pounds-feet but less than 12.8 pounds-feet.
6) Disengage AIL engage switch, remove grounds, and level vertical gyro.
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(f) Test Aileron Force Limiter 1) Engage AIL engage switch. 2) Tilt vertical gyro to simulate a 30-degree right bank. Observe that control wheel
rotates counterclockwise and stops between 15 and 19 degrees.
3) Level vertical gyro and disengage AIL engage switch.
4) Repeat 1) thru 3) for opposite direction (left bank).
(g) Test Heading Off 1) Ground roll TP-11, TP-13, and TP-18, engage AIL engage switch, and increase the compass heading by 3.5 degrees. Observe the control wheels rotate counterclockwise.
2) Place mode selector switch to HDG OFF and return compass heading to 0 degrees. Observe the control wheels do not move. 3) Tilt the vertical gyro to center the wheel. Observe 2.1 to 3.9 degrees of left roll is required to center the wheel. 4) Return mode selector switch to MAN position. Observe the control wheel rotates clockwise. 5) Disengage AIL engage switch, remove grounds, and level gyro.
(h) Test NAV Steering Gain
NOTE: This test assumes that the OMEGA navigation systems are operating properly and providing a NAV valid output.
1) Turn Omega OFF-A-M-R switch to M.
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2) Set data display selector switch to GMT-D position and enter Greenwich Mean Time (hours, minutes, tenths of minutes), starting with most significant digit (leading zeroes are not entered). When all digits are entered, press ENT key once.
3) Enter Greenwich date (day, month, year). When all digits are entered, press ENT key once. 4) Set data display selector switch to POS and enter present position latitude and
longitude of the airplane. Press ENT key once. 5) Set data display selector switch to DTK/STS. 6) Set NAV switch to OMEGA position. 7) Engage both autopilot engage switches. Set Nav Mode Selector switch on the
autopilot controller to NAV mode. 8) On Omega control panel set data display selector to AUX and set WPT selector
to 9. 9) Set OFF-A-M-R switch to A. Verify that both control wheels roll to the left. 10) Set OFF-A-M-R switch to M. Verify that both control wheels return to center
position. 11) Set OFF-A-M-R switch to R. Verify that both control wheels rotate to the right. 12) Return OFF-A-M-R switch to OFF. Disengage the autopilot.
(i) Test Derived Rate (Roll computers without rate gyro test switch)
1) Ground roll TP-15, and TP-18, engage AIL engage switch, and tilt vertical gyro approximately 5 degrees right roll. Observe that control wheel rotates left then returns to center.
2) Return vertical gyro to level. Observe that control wheel rotates right then returns to center. 3) Disengage AIL engage switch and remove grounds.
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(12) Test HDG SEL Mode
(a) Test Preset Heading Gain 1) Engage AIL engage switch and ground roll TP-11. 2) Engage HDG SEL switch. 3) Move preset heading bug 10 degrees to right of airplane heading. Observe that
control wheel turns clockwise and stops.
4) Tilt No. 1 vertical gyro to simulate a right roll until control wheel is centered. Observe that the required gyro tilt is not less than 7.0 degrees and not more than 13.5 degrees.
5) Relevel vertical gyro, disengage AIL engage switch, remove ground from roll TP-11.
6) Apply 350 KIAS and repeat 1) thru 4) moving preset heading bug 5 degrees. Observe that required gyro tilt is not less than 13 degrees and not more than 21 degrees. Apply 120 KIAS.
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