SCALE ON RAMMER, TO INDICATE
PROPER TRAVEL OF PROJECTILE
FOR 8"-10"-12" RIFLE AND
12"-MORTARS
Fig. 29.
Q. Describe how to set the azimuth indicator-plate for a given azimuth.
A. Traverse the gun until the mark on the indicator-plate representing the number of hundredths is opposite the mark on the azimuth circle representing the number of degrees. In Fig. 30 the gun is set at 104°.05.
Fig. 30.