. Military sketching and map reading. ient the board at A (see Fig. 23 in con-nection with Fig. 22); mark the point a on the board to cor-respond to A on the ground. Sight in the direction of B,and from a draw a straight line in the direction of B, thensight at the hill G, then draw a straight line in the direction ofG. (Care must be taken to keep the board constantly determining the line of sight from the point of observationon the map to some distant point on the ground, pivot the rulerat the point of observation and sight along the upper edge to-ward the object.) Pace the distan
. Military sketching and map reading. ient the board at A (see Fig. 23 in con-nection with Fig. 22); mark the point a on the board to cor-respond to A on the ground. Sight in the direction of B,and from a draw a straight line in the direction of B, thensight at the hill G, then draw a straight line in the direction ofG. (Care must be taken to keep the board constantly determining the line of sight from the point of observationon the map to some distant point on the ground, pivot the rulerat the point of observation and sight along the upper edge to-ward the object.) Pace the distance AB, orient the board atB, and lay off the map distance, ab, corresponding to theground distance, AB, then sight at the hill, G, and draw a 70 MiLiTAKY Sketching straight line from b in the direction of 0. The lines drawnfrom a toward G. and from b toward G intersect at g,which is the map location of the hill, G. In a similar man-ner any other points, as H and /, Fig. 22, may be located byintersection from any two favorable f- ^- ?^--
Size: 3164px × 790px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectmilitarytopography
