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Casemate-mounted 5"/50 caliber gun on the USS North Dakota. A casemate is an armoured structure consisting of a static primary surface incorporating a limited-traverse gun mount: typically, this takes the form of either a gun mounted through a fixed armour plate (typically seen on tank destroyers and assault guns) or a mount consisting of a partial cylinder of armour "sandwiched" between ...
A coaxial weapon mount places two weapons on roughly the same axis – as the weapons are usually side-by-side or one on top of the other, and thus oriented in parallel directions – they are technically par-axial rather than coaxial, however the distances involved mean that they are effectively coaxial as far as the operator is concerned.
The latter evolved into the Scarff ring, a rotating ring mount which allowed the gun to be turned to any direction with the gunner remaining directly behind it, the weapon held in an intermediate elevation by bungee cord, a simple and effective mounting for single weapons such as the Lewis Gun though less handy when twin mounted as with the ...
The resulting combination of the M54 mount with the M3A1 half-track chassis was designated the M15A1 CGMC. [12] A total of 1,052 were produced in 1943, and a further 600 in 1944. [17] [18] 100 M15s were shipped to the Soviet Union under the Lend-Lease policy. [19] Both the M42 mount and M15 CGMC were classified as obsolete in August 1946. [20]
For a ring assembly to grip evenly, it is important that the scope rings are circular and coaxial with the scope tube. On ring mounts that grip unevenly, the ring mount can be lapped to prevent uneven pressure when mounting. [15] One scopes made for ring mounts, it is not uncommon to get ring marks when mounting the rings.
Higher levels of omega-6 fatty acids often found in ultraprocessed foods may interfere with the immune system’s fight against cancer cells, a new study says.
The Mark 38 25 mm machine gun system (MGS) is a shipboard weapon system designed to protect warships primarily from a variety of surface threats, especially small, fast surface craft. [1] It consists of an M242 Bushmaster chain gun mounted on a turret that can be either manually or remote controlled , depending on variant.
The House Practice guide says members-elect “entitled to take the oath may decline it by resigning before taking a seat, because membership cannot be imposed on one without his consent.”