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

FM 3-22.1Section IIIBORESIGHTING AND WEAPON CHECKS WITH THE CLOSE-IN PANELThis section describes how a crew uses the close-in boresight panel. It then describes howthey use the panel to boresight the BFV turret weapons in a restricted or confined arealike the motor pool.B-14. DESCRIPTION OF PANELFive of the reference crosses bear the labels TOW, ISU, AUX, 25-MM, and COAX. Asixth, "T"-shaped reference is made of metal to allow boresighting of the thermal sight.The panel's background color is white. The ISU cross and "T" are black; and the TOW,25-MM, COAX, and AUX crosses are orange (Figure B-41).Figure B-41. Close-in panel.B-15. WEAPON CHECKSThe close-in boresight panel also tests backlash, equilibrator, drift, and boresightretention. These tests allow the BFV crew to identify weapon system errors that decreasefiring accuracy as well as to learn their weapons. Before firing live, while they are still inthe motorpool, the crew tests backlash, equilibration, and drift.B-16. PANEL PLACEMENTDepending on the positioning of vehicles and the panel in the motor pool, the companymight be able to boresight the vehicles of an entire battalion with one panel. Figure B-42shows an overhead view of panel placement and location of vehicles. They place thepanel from 0 to 25 meters above ground level, even atop a building or on the sideof a tower.a. Vehicles must sit within 30 meters right or left for direct-line distances between100 and 120 meters. Between 120 and 150 meters, they can sit as far away as 50 metersto the right or left.B-30