As formatted, the programs can be used only with one calculator, the HP-65. lists of target grid coordinates in an impact area, or in providing flash support to mortar or artillery units undergoing training tests. The programs were designed to provide an in-the-field data processing capability for experimenters conducting mortar and artillery indirect fire experiments, but can assist Army survey teams in preparing Trig. The programs perform survey-type computations Program 1 computes grid coordinates of an unknown point a target or the point-of-impact of a round based on the intersection of all pairs of azimuth rays from three known observation points to the unknown point Program 2 is similar to Program 1 but uses only two observation points and computes grid coordinates to a higher degree of accuracy than Program 1 Program 3 computes grid coordinates of an unknown point given distance, azimuth and slant angle to a known point-data which can be obtained using a laser range finder on a mount which provides a readout of azimuth and slant angle Program 4 computes range and azimuth from point A to point B, two known points. Abstract: Four programs for use with an HP-65 programmable pocket calculator are presented.
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