Use of the Panoramic Sight for Direct Fire.
Level rocker with zero on range scale opposite 300 on angle-of-site scale and gun at center of traverse. Set azimuth scale at zero, azimuth micrometer knob at zero, micrometer index at zero, elevation scale at 3, and elevation micrometer knob at zero. By means of cross-leveling knob on sight socket bring cross-level bubble level.
Correct for deflection in azimuth by turning azimuth micrometer until required deflection is opposite fixed arrow pointer; bring zero on micrometer index to zero on azimuth micrometer by means of micrometer-index knob.
Elevate gun by means of angle-of-site handwheel and traverse until cross hairs of panoramic sight are on target.
For Indirect Fire.
Level rocker and set scales for zero setting as directed in first paragraph under “direct fire.”
Lay off required deflection in azimuth by means of micrometer index and azimuth worm knob, so that deflection may be read from azimuth index and azimuth micrometer. Traverse gun until vertical cross hair of panoramic sight is on aiming point.
Vertical angles may be read by means of elevation scale and micrometer scale. Zero point of elevation scale is 3. Each division on elevation scale represents 100 mils.
All scales are graduated in mils.
The open sight on side of rotating head is used to obtain preliminary direction of sight.