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[1] This emphasis on siege warfare led to many developments in the use and design of artillery. Fortifications were vulnerable to vertical trajectory or plunging fire , and the concept of mortars was well understood, but large-scale mortars were initially used only to provide close support for infantry assaults on fortified positions.
Reglet detail. A reglet is found on the exterior of a building along a masonry wall, chimney or parapet that meets the roof.It is a groove cut within a mortar joint that receives counter-flashing meant to cover surface flashing used to deflect water infiltration.
A cement accelerator is an admixture for the use in concrete, mortar, rendering or screeds. The addition of an accelerator speeds the setting time and thus cure time starts earlier. [ 1 ] This allows concrete to be placed in winter with reduced risk of frost damage. [ 2 ]
Below is a comprehensive drill and tap size chart for all drills and taps: Inch, imperial, and metric, up to 36.5 millimetres (1.44 in) in diameter. In manufactured parts, holes with female screw threads are often needed; they accept male screws to facilitate the building and fastening of a finished assembly.
[57] [58] Masonry drill bits and standard expandable wall plugs are not suitable for use with AAC blocks. [58] Using European standard density (400 kg/m 3, B2,5), AAC blocks alone would require very thick — 500mm or thicker — walls to achieve the insulation levels required by newer building codes in Northern Europe. [55]
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 the problem of satisfying unexpected need for delivery of firepower, particularly for ...
Albrecht Mortar German Empire: World War I 254: 10-inch siege mortar M. 1841 United States: 1841 254: 10-inch seacoast mortar M. 1841 United States: 1841 260: 26 cm Minenwerfer M 17 Austria-Hungary: World War I 320: 320 mm Type 98 mortar Japan: World War II: 325: Mortier de 12 Gribeauval Kingdom of France: 1781 330: 13-inch seacoast mortar M ...
81 KRH 71 Y (81 mm kranaatinheitin malli 1971 ympäriampuva, '81 mm mortar model 1971, 360-degree traverse') is a light mortar manufactured by Tampella for use by the Finnish Army. [1]: 192–193 It is usually used to support the infantry by indirect fire, but it can also be used for direct fire. Each Finnish infantry company has a platoon of ...