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A trunnion (from Old French trognon 'trunk') [1] is a cylindrical protrusion used as a mounting or pivoting point. First associated with cannons, they are an important military development. First associated with cannons, they are an important military development.
Trunnion: a cylindrical protrusion used as a mounting and/or pivoting point. On firearms, the barrel is sometimes mounted in a trunnion, which in turn is mounted to the receiver. Turn bolt: A turn bolt refers to a firearm component that where the whole bolt without using a bolt carrier turns to lock/unlock. This is mostly used to describe ...
Dummy: Ammunition with an inert warhead, inert primer, and no propellant; used for training or display. Blank : Ammunition with live primer, greatly reduced propellant charge (typically black powder), and no projectile; used for training, demonstration or ceremonial use.
(n.) secondary academic subject (compare major) ("has a major in biology and a minor in English"); (v.) to study as one's minor ("she minored in English") minor league; miss out: to omit to lose a chance; usu. used with on mobile (n.) mobile phone (US: cell phone) decorative structure suspended so as to turn freely in the air mobile home
Illustration of a simple three-axis gimbal set; the center ring can be vertically fixed. A gimbal is a pivoted support that permits rotation of an object about an axis. A set of three gimbals, one mounted on the other with orthogonal pivot axes, may be used to allow an object mounted on the innermost gimbal to remain independent of the rotation of its support (e.g. vertical in the first ...
A dummy round or drill round is a round that is completely inert, i.e., contains no primer, propellant, or explosive charge (filling). [1] It is used to check weapon function, and for crew training. [2] Dummy ammunition is distinct from "practice" ammunition, which may contain smaller than normal amounts of propellant and/or explosive. [3]
(The Center Square) – House Republicans in the Washington State Legislature offered up dozens of amendments Thursday during an executive session before the House Education Committee, but none ...
From the 16th to the mid-19th century, the main form of artillery remained the smoothbore cannon.By this time, the trunnion (a short axle protruding from either side of the gun barrel) had been developed, with the result that the barrel could be held in two recesses in the carriage and secured with an iron band, the "capsquare".