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The barrel was 42 calibres long (i.e., length of bore was 15 in x 42 = 630 in) and was referred to as "15 inch/42". Overall length of gun: 650.4 inches, Weight of gun, excluding breech mechanism: 97 tons 3cwt. Weight of breech mechanism: 2 tons 17cwt. Rifling: polygroove, 76 grooves, uniform right-hand twist of one turn in 30 calibres.
In 2014, McCollum improved the quality of his videos by means of an IndieGogo campaign, the proceeds of which were used to purchase high-quality camera equipment. [ 9 ] In 2018, McCollum co-founded Headstamp Publishing with colleagues N.R. Jenzen-Jones (of Armament Research Services ) and James Rupley, through which he wrote and published his ...
[40] [41] [42] The open source firm Defense Distributed designed the gun and released the plans on the Internet on May 6, 2013. The plans were downloaded over 100,000 times in the two days before the United States Department of State demanded that Defense Distributed retract the plans, deeming them a violation of the Arms Export Control Act .
The Centurion is reportedly capable of defending a 0.5 sq mi (1.3 km 2) area. [39] One major difference between the land- and sea-based variants is the choice of ammunition. Whereas naval Phalanx systems fire tungsten armor-piercing rounds, the C-RAM uses the 20 mm HEIT-SD ( High-Explosive Incendiary Tracer , Self-Destruct) ammunition ...
The cap-firing modelguns besides highly replicate the appearance and internal mechanism as real guns like the dummy version, they are also able to "fire" the cartridge to produce spark, smoke, bang sound and slide cycling action (blowback) on automatic models. There are 2 different cap firing systems for blowback modelguns.
VNS Verdun takes a shot at USS Nathaniel Greene at the 2007 North American Big Gun Open [1] event. Model warship combat is an international club activity, in which participants construct radio-controlled scale models of actual warships, most commonly those built by various nations prior to 1946, such as the USS Des Moines or the German battleship Bismarck.
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Tamiya produces aircraft scale models in mainly 1/48, but also in 1/72 (Warbird collection) and 1/32 scale. Tamiya made aircraft in the 1/100 scale in the '60s and early '70s but this was abandoned later on.In aircraft models Tamiya offers a few clear skinned kits showing interior parts of aircraft.