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M4 collimator sight on a M4 mortar. A collimator sight is a type of optical sight that allows the user looking into it to see an illuminated aiming point aligned with the device the sight is attached to, regardless of eye position (with little parallax). [1] They are also referred to as collimating sights [2] or "occluded eye gunsight" (OEG). [3]
L16 mortar consisting of barrel, base plate and bipod Looking down an L16 mortar barrel. Note: fixed firing pin. Most modern mortar systems consist of four main components: a barrel, a base plate, a bipod and a sight. Modern mortars normally range in calibre from 60 mm (2.36 in) to 120 mm (4.72 in). However, both larger and smaller mortars have ...
Either the sight was in fixed alignment with the axis of the bore with ranges marked in the sight, and the gunner laid the range mark on the target. Or during laying the gunner physically set the range to offset the axis of the bore from the axis of the sight by the correct amount and laid using the centre mark in the sight.
The M224 60 mm Lightweight Company Mortar System (LWCMS) is a smoothbore, muzzle-loading, high-angle-of-fire mortar used for close-in support of ground troops. It was deployed extensively in the War in Afghanistan by the United States military .
M734 fuze cross section Amplifier (top) and oscillator. The M734 multi-option fuze [1] is a rangefinder and collision detection system used on 60 mm, 81 mm, and 120 mm mortar shells as a trigger to detonate the shells at the most damaging heights of burst when combating four types of battlefield threats:
A United States Marine lance corporal plots the direction and elevation of a mortar before firing. Before a gun or launcher can be aimed, it must be oriented towards a known azimuth, or at least towards a target area. Initially, the angle between the aiming point and target area is deduced, or estimated, and set on the azimuth sight. Each gun ...
Because artillery is an indirect fire weapon system, the guns are rarely in line-of-sight of their target, often located miles away. [2] The observer serves as the eyes of the guns, by sending target locations and if necessary corrections to the fall of shot, usually by radio.
The user then adjusts the iron sights or scope reticle to align the point of aim with the projected laser dot. Another more commonly used type of laser boresighter is attached to the muzzle of the barrel, either inserted straight into the bore ("arbor" type) or held in alignment with the barrel via a magnet , and projects a laser beam onto the ...