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8,870 metres (9,700 yd) at +40° [2] The QF 4-inch Mk XIX gun [ note 1 ] was a British low-velocity 4-inch 40- calibre naval gun used to arm small warships such as Bathurst and Castle-class corvette and some River-class frigate in World War II , mainly against submarines.
Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. [1] " Nominal" refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe" consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside ...
Gun No. 4, the first Mark 2, was completed in September 1890. [2] The Mark 3 Mod 0, M1890, would be the production version of the 4-inch/40 caliber bag gun with a total of 69 built in five Mods. The Mod 1 added a screw-box liner and chamber liner allowing it to use fixed ammunition along with only one hoop and a locking hoop and was hooped to ...
The gun was intended to be a more powerful alternative to the quick-firing 3-inch QF 12-pounder gun, and a faster-firing replacement for the BL 4-inch gun. It was mounted on the following ships : Pelorus-class third-class protected cruisers of 1896; Condor-class sloops of 1898; Cadmus-class sloops of 1900; Topaze-class third-class cruisers ...
Crew of a dual 4-inch at action stations aboard HMS Berwick while in screening the Atlantic Convoys in May 1943. The Mk XVI superseded the earlier QF 4 inch Mk V naval gun on many Royal Navy ships during the late 1930s and early 1940s. The ammunition fired by the Mk V gun and the Mk XVI guns were different.
Work on installing the retractable bollards that will be used for closing downtown Adrian streets during events is scheduled to begin Monday, Aug. 28.
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