Abstract: This specification covers the Mount, Telescope and Quadrant: M172A1 which supports the Fire Control Quadrant: M18A1 for use on the M777 and M198 series of howitzers and gives elevation compensation to correct for cant when ...

Abstract: This specification sheet covers a type of six-barrel, electrically fired, 20 millimeter (mm) automatic gun: M61A2. The gun utilizes an ammunition feeder and is power driven through its cycle of operation by an external ...