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When the angle between two targets is larger than the
angle measuring range (100 mils), it can be measured in
several steps.
The horizontal angle of cruiser shown in Fig. 5, is 130
mils (60+70=130).
6.4 Measuring vertical angle using the reticle
Vertical angle measurement is similar to horizontal angle
measuring.
When height of the target is smaller than the reticle scale,
its height can be obtained in one measurement.
The height of the beacon, shown in Fig. 6, is 65 mils.
Fig. 5.