Elements of military sketching and map reading (1917)
Barnes, John Bryson, 1876- · New York : D. Van Nostrand · leaf 47
Fig. 24. 38 ELEMENTS OF MILITARY SKETCHING plotted to scale on a map. ^I.D. is, therefore, theplotted horizontal or level distance between adjacentcontour lines. (Alap Distance is always measuredperpendicularly to the contour at that particular point.)Vertical Interval (abbreviated V.I.) is the… … Fig. 2.V contour planes a,a,a (Fig. 26. See also Figs. 22 and24). Assuming that this V.I. is 20 feet, the differencesin elevation of A, B, C, D, (Fig. 26), is then 20feet. It will be seen that the total M.D. betweenA and E (Figs. 26 and 26A) is greater than the totalM.D. between F and E, though the…
Military topography · Maps, Military
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