Contents · Sections X–XI
RESTRICTEDXI
E. Align Dovetail Parallel to Fore and Aft
Axis of Stabilizer185
F. Precision Level187
G. Level Head of Stand187
H. Level Stabilizer189
I. Mount Sight on Stabilizer189
J. Erect Gyro To Vertical189
K. Check Gyro Leveling Bubbles189
L. Erect Telescope Transverse Cross Hair
To the Vertical191
M. Erect Fore and Aft Cross Hair To The
Vertical191
N. Shape Flexible Leads191
O. Precession Check193
P. Precession Check of Stabilizer Gyro194
SECTION XI
REVIEW AND REFERENCE INFORMATION195
Confidential Letters of Instruction195
Technical Orders196
Calibration Tools197
Precision Surface Plates and Tables197
Precision Level197
Precision Mirror197
Tachometer197
Stop Watches198
.969 Guage198
Reason For Various Steps of Calibration199-204
Deflection and Range Errors205
Deflection Errors205
A. Definitions205
B. Causes of Deflection Errors205
C. Prerequisites For Understanding
of Deflection Errors205
Causes of Deflection Errors206
A. Dovetail Misaligned206
B. Eccentric Stud Not at Exact Center
of the Sight Stem With Trail Arm
at Zero Mils207
C. Misalignment of Stabilizer207
D. Failure to Erect Fore and Aft Hair
Properly208
E. Reticle Out of Alignment209
Range Errors209
Causes of Range Errors211
A. Causes of Improper Positioning of
Rate Quadrant211
