VITCAS HPM-Heatproof Mortar – Air Setting - Cement Ready Mixed - Heat Resistant Mortar for Fire bricks in fireplace, stoves, boilers etc - Indoor Use

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The German Army studied the Siege of Port Arthur, where heavy artillery had been unable to destroy defensive structures like barbed wire and bunkers. As a result, they developed a short-barrelled rifled muzzle-loading mortar called the Minenwerfer. Heavily used during World War I, they were made in three sizes: 7.58cm (2.98in), 17cm (6.7in) and 25cm (9.8in). During the Battle of Iwo Jima, the Imperial Japanese Army used twelve 320 mm mortars against the American forces. Mortars are usually smaller and lighter than howitzers and field guns. When the mortar bomb is launched, it descends at a very steep angle (almost straight down). [1] Oliver Holmes (December 12, 2014). "Syrian rebel "hell cannons" kill 300 civilians: monitoring group". Reuters. Yahoo! News. Archived from the original on December 16, 2014 . Retrieved December 13, 2014.

There are numerous armoured fighting vehicles and even main battle tanks that can be equipped with a mortar, either outside or inside of the cabin. The Israeli Merkava tank uses a 60mm mortar as a secondary armament. The Russian army uses the 2S4 Tyulpan self-propelled 240mm heavy mortar which is one of the largest mortars in current use. Field Manual 3-22.90 – Mortars" (PDF). Department of the Army. December 2007. Archived from the original (PDF) on 17 February 2013 . Retrieved 7 January 2013. Northrop Grumman Corporation". Northrop Grumman. Archived from the original on 2017-09-10 . Retrieved 2018-06-11. From the 17th to the mid 20th century, very heavy, relatively immobile siege mortars were used, of up to one metre calibre, often made of cast iron and with an outside barrel diameter many times that of the bore diameter. An early example was Roaring Meg, with a 15.5-inch (390mm) barrel diameter and firing a 220lb (100kg) hollow ball filled with gunpowder and used during the English Civil War in 1646.

Slough observer:Suspected Second World War mortar exploded in Windsor today, 3 October 2014. Example of use of the word "mortar" for a mortar bomb

Vesa Toivonen, 2003, From Tampella to Patria, 70 Years of Finnish Heavy Weapons Production, Tampere, ISBN 952-5026-26-4 For outdoor applications Vitcas Heatproof Screed and Outdoor Oven Cement are suitable alternatives which will withstand the weather. Application: The Strix mortar round is a Swedish endphase-guided projectile fired from a 120mm mortar currently manufactured by Saab Bofors Dynamics. STRIX is fired like a conventional mortar round. The round contains an infrared imaging sensor that it uses to guide itself onto any tank or armoured fighting vehicle in the vicinity where it lands. The seeker is designed to ignore targets that are already burning. Launched from any 120mm mortar, STRIX has a normal range of up to 4.5km. The addition of a special sustainer motor increases the range to 7.5km. Training Support Company is a part of Specialist Weapons School. The Company comprises of four Platoons that concentrate on supporting all command courses in their different disciplines, within Waterloo Lines. Improvised mortars used in the Syrian civil war are known as hell cannons. Observers have noted that they are "wildly inaccurate" and responsible for hundreds of civilian deaths. [21] Sri Lankan civil war [ edit ]Needham, Joseph (1987). Science and Civilisation in China. Volume 5. Chemistry and Chemical Technology. Part 7. Military Technology: The Gunpowder Epic. Cambridge: Cambridge University Press. p.313. ISBN 9780521303583. During the Russo-Japanese War, Lieutenant General Leonid Gobyato of the Imperial Russian Army applied the principles of indirect fire from closed firing positions in the field and, with the collaboration of General Roman Kondratenko, he designed the first mortar that fired navy shells. mortar definition". Oxford Dictionary of English. Oxford University Press. Archived from the original on October 9, 2019 . Retrieved 10 October 2019. The Infantry Assault Soldier/Pioneer conveys unique skills to the battlefield, he is able to provide mobility, counter mobility and survivability to his Battalion. Light and medium mortars are easy to move around. They are usually used by infantry units. Mortars can fire from a trench or defilade.

Norris, John; Calow, Robert (11 December 2002). Infantry Mortars of World War II. ISBN 9781841764146 . Retrieved June 26, 2012. {{ cite book}}: CS1 maint: multiple names: authors list ( link) [ permanent dead link] Field Manual 3-22.91 – Mortar Fire Direction Procedures" (PDF). Department of the Army. 17 July 2008. Archived from the original (PDF) on 17 February 2013 . Retrieved 7 January 2013.

Easier to install – consistency can be varied for application with a trowel or commercially available pumps This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. A spigot mortar consists mainly of a solid rod or spigot, onto which a hollow tube in the projectile fits—inverting the normal tube-mortar arrangement. At the top of the tube in the projectile, a cavity contains propellant, such as cordite. There is usually a trigger mechanism built into the base of the spigot, with a long firing pin running up the length of the spigot activating a primer inside the projectile and firing the propellant charge. The advantage of a spigot mortar is that the firing unit (baseplate and spigot) is smaller and lighter than a conventional tube mortar of equivalent payload and range. It is also somewhat simpler to manufacture. Further, most spigot mortars have no barrel in the conventional sense, which means ammunition of almost any weight and diameter can be fired from the same mortar. Chris Bishop (2002). The Encyclopedia of Weapons of World War II. Sterling Publishing Company. p.202. ISBN 978-1-58663-762-0. Archived from the original on 2015-03-20 . Retrieved 2016-03-27. Light versions of mortar are usually used by at least two men. Heavier mortars are fired by three to five men. [1] Lighter mortars can be fired from anywhere that gives a good firing position. However, medium mortars are usually fired from prepared, well fortified positions. [1] Design [ change | change source ] LLR 81mm mortar of the 2e REI. Picture of the base plate and bipod attached to the barrel of a mortar.