(distribution channels; location; measurements; plotting) (2-14)
FRAME 2-15.
Maps also provide the user with terrain and cultural (manmade) data necessary for engineer operations. Such
data include the steepness of slopes, location of ridges and valleys, etc. (terrain) and existing road network,
settlements, etc. (culture).
You may also use your map to determine the ________________________ and _________________________
data necessary for engineer operations.
(inaccessible) (2-38)
FRAME 2-39.
Besides the visual observers, aerial reconnaissance missions may also employ electronic sensors, such as
infrared and radar detectors, to aid in penetrating heavy foliage or camouflage concealment, or for use at night. An
aerial camera can be used, with the appropriate kind of film, to provide a permanent record of the observations for
later study.
Aircraft used for aerial reconnaissance missions may be equipped with ________________________________
sensors, to detect objects or activity not visible to the naked eye. All observations, whether visual or electronic, can
be recorded on the appropriate kind of __________________________________.
2-31
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