2003 US Army BRADLEY GUNNERY 503p.pdf - Survival Books

FM 3-22.1orientation (the direction the front of the vehicle is pointing) while stationary, forexample, BMP, NINE O'CLOCK. The BC or gunner can use the turret position indicatoror, on the A3, use the one in the biocular display.b. Sector Method. The sector method is similar to the clock method--it is quick andeasy to use. The BC is most likely to use the sector method to indicate the target'sdirection of movement relative to that of the Bradley or, if the Bradley is stationary,relative to its hull orientation. Center sector is always to the front, for example, THREETANKS, LEFT REAR.c. Traverse Method. The BC can use this fairly quick method to locate the targetfor the gunner. However, when his handstation malfunctions, the BC can use this methodto guide the gunner on target, for example, TRAVERSE LEFT (OR RIGHT),STEADY, ON.d. Reference-Point Methods. The BFV crew uses these methods along with thevehicle optics.(1) Binocular Method. Using binoculars, the BC determines the mil value from aterrain feature, known position, or target reference point (TRP). He then announces thismil value to the gunner.(2) Mil-Relation Method. Using the mil-reticle relationship, the gunner traversesonto the target. Both the BC and gunner must know the mil-sight relationship, forexample, ATGM, TRP ONE, RIGHT FIVE MILS.e. Quick Target-Reference-Point Method. All personnel use the quick TRPmethod to identify targets near a TRP, for example, "Two PCs, TRP One."f. Precise-Reference-Point Method. Crewmembers use this method when theywant a precise target location relative to a known TRP.g. Grid Method. The BC uses this time-consuming method only when all he knowsabout the location of the target is the grid coordinates. The BC must locate the target onhis map or FBCB2 map screen. Then, he must orient the turret towards the target forthe gunner.h. Target-Designation Capability. When the A3 commander locates a target usingthe CIV, he presses the TARGET-DESIGNATE button. This moves the gunner's LOS inthe IBAS to within one degree of the target. The handstation palm switch must beengaged in order to use the target designation feature.6-4. RANGE ESTIMATIONAt times, the BC or gunner must estimate range (Table 6-1). They can each use one oftwo methods, but only to estimate range. Proficiency in these methods requiresconstant practice.a. 100-Meter Unit-of-Measure Method. To use this method, the BC or gunnermust be able to picture a distance of 100 meters on the ground.(1) For ranges up to 500 meters, he estimates the number of 100-meter incrementsbetween the two objects he wishes to measure.(2) For ranges beyond 500 meters, he--(a) Selects a point halfway to the object(s).(b) Determines the number of 100-meter increments to the halfway point.(c) Doubles that number to find the range to the object(s).6-10