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Additional resources for Aerial Navigation [Pt. I, II] (the compass and the map)- Div. Mil. Aeronautics, US Army

Example text

Is 1/40,000. Give the distance on the ground in miles. Give its R. F. (6) (a) The scale of a map is 3 inches to the mile. (6) To what French map does it correspond? (7) The distance between two trees is measured and found to be 500 yards; on the map they show to be 2 inches apart. What is the R. F. of the map? 7 inches apart on a map whose R. F. is 1/100,000, find the distance in miles (kilometers). 7 inches (9) The scale of the map is 1/20,000. on that map equal miles on the ground? (10) Express the scale 1/10,000 graphically in terms of yards.

16. Each lettered square is subdivided into 30 or 36 smaller squares. Always there are six squares from west to east and five or six squares from north to south. , are or 6,000 yards high. The smaller squares which make up the large squares are numbered from 1 to 30 or 36 Each small square is 1,000 yards in width and in height. (fig. 17). These numbered squares are divided into four minor squares whose sides measure 500 yards. These minor squares are considered as lettered a, b, c, d, but only squares numbered 6 are actually so lettered, to avoid unnecessary confusion on the map.

The exercises required are so simple and so nearly alike that it is not feasible to print a It is left to the pilot to make up a large large number of them. number, perhaps hundreds of exercises similar to each of these, and to train himself to work them out with speed and certainty. FIG. 33. DIRECTION. The first exercise consists in drawing angles between and 360, guessing at their size and checking by protractor until the guesses are fairly accurate. For example, how many degrees is a certain angle.

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Aerial Navigation [Pt. I, II] (the compass and the map)- Div. Mil. Aeronautics, US Army


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