Elements of Military Sketching Arranged for Use of the Organized Militia of Ver
Elements of Military Sketching Arranged for Use of the Organized Militia of Ver
John B John Bryson Barnes
The book Elements of Military Sketching Arranged for Use of the Organized Militia of Ver was written by author John B John Bryson Barnes Here you can read free online of Elements of Military Sketching Arranged for Use of the Organized Militia of Ver book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Elements of Military Sketching Arranged for Use of the Organized Militia of Ver a good or bad book?
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Stop at any point of the road (as i), orient the sketch and sight towards this object, plotting the line of sight by drawing an indefinite straight line from your position towards the object. After having march- ed a certain distance (as at 2) a second sight is taken and the line of sight plotted in the same manner. This will intersect the first line. The point of intersection locates the object. This method is very accurate provided the base-line is correct; care should, therefore, be taken to... measure and plot correctly the distance between the first point of sighting and the second. The smaller the angle at X the greater will be the chance of error. Therefore, this angle should approach a right angle when prac- ticable. SKETCHING IMPLEMENTS. 9. CAVALRY A drawing board with a compass set in. The SKETCHING CASE paper is tightly rolled over two metallic rollers (Diag. 15. ) on opposite ends of the board. An arm with a brass scale (3 inches to the mile) is fastened to it, freely moving around a pivot.
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