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A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens.
This list catalogues mortars which are issued to infantry units to provide close range, rapid response, indirect fire capability of an infantry unit in tactical combat. [1] In this sense the mortar has been called "infantryman's artillery", and represents a flexible logistic solution [clarification needed] to satisfying unexpected need for delivery of firepower, particularly for the light ...
The range of a mortar is controlled by the number of propellant charges attached to the tail of the mortar designated M223. A charge is a semi-circular donut of nitrocellulose, which resembles a "horseshoe". [17] [18] A round for the M252 mortar comes with four charges attached. Longer-range shots require more propellant than can fit in the ...
The 81 mm mortar shells used an adapter collar to allow 60 mm mortar shell fuzes to fit. Originally packed in wooden crates, the late war shells (1944–1945) were packed in metal M140 canisters. The M140 canister carried live shells in a four-chambered internal divider, had a horsehair pad in the inside of the lid to cushion the fuzes, and had ...
A range table was a list of angles of elevation a particular artillery gun barrel needed to be set to, to strike a target at a particular distance with a projectile of a particular weight using a propellant cartridge of a particular weight.
The M84 was a modified M59 that carried a 4.2-inch M30 mortar pointing backwards attached to the floor in the bay. Roof plates on the M84 could be opened to allow the mortar to be fired from inside the vehicle. The M84 only carried a crew of six, but weighed 47,100 lbs (21,400 kg) because of the mortar and the combat load of 88 rounds.
The impact of L.A.'s victory in Game 5 extends well beyond the stars to the team's unsung heroes and fans around the world.
81mm L16 mortar. An 81-mm mortar is a medium-weight mortar. It is a smooth-bore, muzzle-loading, high-angle-of-fire weapon used for long-range indirect fire support of light infantry, air assault, and airborne units across the entire front of a battalion zone of influence. [1] [2] Many countries use or have used an 81-mm mortar in their armed ...