ATP-3-09-02 Field Artillery Survey Download
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Survey Operations 16 February 2016 ATP 3-09.02 3-15 SECTION III – SURVEY IN SPECIAL ENVIRONMENTS 3-67. Survey operations must proceed regardless of environmental factors, such as climate and terrain. Therefore, the type of environment must be considered. This section discusses some of the problems that may affect surveyors in arctic, desert, jungle, and urban areas. ARCTIC AREAS SURVEY OPERATIONS 3-68. Normally, peacetime surveys are planned to take advantage of the warmer months of the year to avoid working under the varying terrain and climate conditions found in the upper latitudes. In wartime, however, survey operations are executed when and where needed and cannot wait for ideal climate conditions. The summer season has the advantage of better visibility, greater body comfort, and fewer equipment malfunctions. The winter season reduces transportation difficulties in river, lake, and tundra regions. Survey control can be extended easily along riverbanks; over the nearly level, treeless plains of the arctic tundra; or across large bodies of water. When committing survey teams to field operations in arctic regions or under arctic conditions that are seasonal in the middle latitudes, commanders must consider the effects of ice movement, snowfall, prevailing wind, light refraction, and other peculiarities. The proper use of authorized cold weather equipment and field expedients will overcome most problems caused by the cold. For detailed information on cold weather operations see ATTP 3-97-11. IPADS OR IPADS-G OPERATION 3-69. Operation of IPADS or IPADS-G in ambient temperatures above 115°F may cause the internal battery computer unit (BCU) battery temperature to approach or exceed 150°F. CAUTION IPADS or IPADS-G batteries contain an internal thermal cutoff switch to protect them from extreme heat. If the internal battery temperature approaches 150°F, the BCU may not provide backup battery power for IPADS or IPADS-G operation. WARNING Contact with power supply fins may cause skin burns at high ambient temperatures. Lead-acid batteries that are not fully charged may freeze and burst. Handle batteries as prescribed in TM 9-6140-200-13. 3-70. IPADS or IPADS-G can be operated for long periods of time on vehicle battery power. If it is necessary to extend a mission after operating IPADS or IPADS-G at temperatures of 115°F or above, do not turn the vehicle off or turn IPADS or IPADS-G direct current (DC) INPUT power off before performing a one-position mark. The hot start initialization procedure can be used to reinitialize IPADS or IPADS-G if necessary. 3-71. If a vehicle-to-vehicle transfer is required for an IPADS or IPADS-G that has been operated for long periods of time at temperatures of 115°F or above, perform a one-position mark before switching over to backup battery power. The hot start initialization procedure can be used to reinitialize IPADS or IPADS-G if necessary.