majority of soldiers in estimating distances can be improved only up to a certain point.
Germany. All the men are practiced in estimating distances up to
800 m. Officers, non-commissioned officers and suitable men (range finders)
are to be trained in quickly and accurately estimating mid ranges,
and practiced in ascertaining long ranges. (Par. 78 German I. F. R.).
"Even a skillful range finder, if he is conscientious, can do no more than give a minimum and a maximum estimate of what he considers the range to be. The ranges must be communicated to the men accordingly. The differences between maximum and minimum estimates should be as follows: At ranges up to and including 500 m., 100 m. (for example: 350-450, or 500-600 m.); between 500 and including 1000 m., 200 m.; over 1000 m., 300 m."
Italy. Subalterns are, as a general rule, charged with estimating the ranges. Non-commissioned officers must be able to estimate ranges up to 1000 m. All non-commissioned officers as well as suitable privates participate in estimating distance drill, which is conducted by an officer in each battalion. The results are recorded in a book. The following is the classification:
Excellent range finders: Those whose error rarely exceeds 50 and never 100 m.
Good range finders: Those whose error does not exceed 100 m., and in exceptional cases 150 m.
Fair range finders: Those whose normal error does not exceed 150 and never 200 m.
Poor range finders: Those whose error exceeds 200 m.
The Russians estimate only short ranges, as a rule; the longer ranges are determined by means of range finding instruments. In the first year of their service all the men are drilled in estimating ranges from 400 to 800 paces; officers and twenty specially selected men from each company up to 3000 paces. The latter (both officers and men) are to make at least 36 estimates in nine days. (Par. 190 Russian I. F. R.). The result is considered good when the error in the estimate does not exceed the figure given below at the ranges named:
Range in paces. Error in paces. Percentage of error.
400 to 1000 paces 50 or 12.5 to 5 %
1000 " 2000 " 100 " 10 " 5 "
2000 " 3000 " 200 " 10 " 6.6"
The Russian range finding instrument (Souchier) is used by officers and specially trained non-commissioned officers; errors in determining ranges are not to exceed a maximum of 2-3 per cent.
In Switzerland recruits are trained to estimate distances up to 600 m. and specially skilled men up to 1500 m.; all non-commissioned officers
