81mm mortar range tablewhat size gas block for 300 blackout pistol
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107 Army Pentagon The fuze threads and fuze well threads are inspected for damage. Official websites use .mil With the mortar mounted and the sight installed, the gunner lays the sight on the two aiming posts (placed out 50 and 100 meters from the mortar) on a referred deflection of 2800 mils and an elevation of 1100 mils. The adjustment ring has six raised ribs for use in conjunction with fuze setter, M25, and a setting indicator rib (marked SET) about half the height and width of the other six ribs. The M821 HE cartridge (M252 only) is a British-made cartridge fitted with the US M734 multioption fuze. .50: AP, M2 AND CARTRIDGE, CAL. When firing under the control of an FDC, he reports to the FDC that mask clearance cannot be obtained at a certain elevation. MFCS Mounted. If you look at the table above, you'll see that at 1.5km range, 120mm mortars have nearly 33% more dispersion than 80mm mortars.Try testing 80mm mortars and 120mm mortars at 1.5km against . It is especially useful if the baseplate sinks deep into the ground during prolonged firing. An M18 fuze wrench is used to change settings. The principal factors affecting height of burst are the angle of approach to the target and the reflectivity of the target terrain. The removable increments are fitted onto or around the shaft, depending on their type. Powered by Hugo. . Washington DC 20310-0107, ADRP - Army Doctrine References Publications, ATTP - Army Tactics, Techniques, and Procedures, FY Publication Status Report (CAC required for access), Publishing Resources (CAC required for access), PC/PCO/FMO/EPCO Directory (CAC required for access), usarmy.pentagon.hqda-apd.mbx.customer-service@army.mil, GUN, MACHINE, CAL. The 81mm mortar is a portable, mobile, medium mortar at the infantry's disposal. OPERATOR`S MANUAL FOR MORTAR, 81-MM, M252 (NSN 1015-01-164-6651) (EIC 4SK){TM . The components of the mortar consist of a canon, sight, mount, and baseplate. The safety pull wire is removed just before inserting the cartridge into the mortar. The mortar also offered the promised increase in range as well, allowing fire teams to engage the enemy at distance. CANNON, 155MM HOWITZER, M185 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A1 HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A1B HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A2 HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A3 HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A3B HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A4 AND CANNON, 155MM HOWITZER, M284 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A5, M109A6 AND M109A7 AND CANNON, 155MM HOWITZER, M284A2 CHROME ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A6 AND M109A7 AND CANNON, 155MM HOWITZER, M199 ON HOWITZER, MEDIUM, TOWED, 155MM, M198 AND CANNON, 155MM HOWITZER, M776 ON HOWITZER, MEDIUM, TOWED, 155MM, M777, M777A1 AND M777A2 AND CANNON, 155MM HOWITZER, M776 CHROME ON HOWITZER, MEDIUM, TOWED, 155MM, M777A2 FIRING PROJECTILE, HE, M795 PROJECTILE, HE, M795 IM PROJECTILE, HE, M1122 PROJECTILE, IR ILLUMINATING, M1123 PROJECTILE, ILLUMINATING, M1124 INCLUDES FIRING TABLES FOR PROPELLANTS: M119A2 (CHARGE 7R), M203A1 (CHARGE 8S), AND MODULAR ARTILLERY CHARGE SYSTEM (MACS) PROPELLANTS: M231 (CHARGES 1L AND 2L), M232 AND M232A1 (CHARGES 3H, 4H AND 5H) (S&I BY PROP SEE DETAILS, FOOTNOTES) . This document (FT 81 B3, abridged) consists of two pages, each with a separate table. The cartridges are painted olive drab with yellow markings. The barrel is then rotated a quarter turn to unlock it from the socket, and it is placed in an area designated by the squad leader. He is also the squad driver. When cartridges have been prepared for firing, but are not used, all powder increments and safety wires are replaced. (2) Burn all dead grass or brush within 30 meters around the burning place. Attached to the right of the screw is the traversing handwheel. The upper clamp is fitted with a locking arrangement that consists of a curved handle and a spring-loaded locking rod, which is ball-shaped at its lower end. Correctly applying and performing these duties enables the mortar section to perform as an effective fighting team. Both legs are fitted with a disk-shaped foot with a spike beneath to prevent the mount from slipping. Complete cartridges are always handled with care. It is used for records such as reports on condition, malfunctions, and accidents. The first ammunition bearer shakes the barrel to dislodge any remnants from the last round fired, and he lowers the barrel into the rotating socket of the baseplate. It is designed to be fired in the indirect fire mode, cannot be fired handheld, and normally utilizes a FDC. (4) Extra increments are removed if the cartridge is to be fired with less than full charge. The increments are individually wrapped with waterproof bags that are not removed. An 81 mm mortar is a medium-weight mortar. b. 81mm smoothbore mortar Barrel length 1.28 m Muzzle velocity 225 m/s Elevation +45 to +85 Traverse 18 Fire control Sights C2 indirect fire sight with illumination Firepower Rate of fire 20 rpm maximum 15 rpm normal 1 to 12 rpm sustained Range 5.650 m maximum 100 m minimum Media 81mm L16A2 (1) The M772A1 fuze is a MTSQ. The following safety checks must be enforced before firing the mortar. Other armies count on 81mm mortar families. He indicates the initial direction of fire by pointing in that direction and commands ACTION. When the gunner is satisfied with his sight picture he announces, "Up.". He places his thumbs alongside the forefingers, being careful to keep both hands away from the muzzle. The mortar is then re-laid on the aiming posts using the traversing crank. Weights (pounds) System (including basic issue items) Barrel (with blast attenuator device) Mount M3A1 Baseplate The Mark 4 and 5 barrels were introduced during World War 2 and have a much increased range. To convert the fuze from PROX to SQ/IMP, the top of the fuze must be rotated 120 degrees (one-third turn) in either direction. He moves the mortar until the vertical line of the sight is aligned approximately on the aiming post. He levels all bubbles. The assistant gunner cleans the bore and swabs it dry. LHMBC. VERY NICE condition! This is accomplished by depressing the barrel until the top of the mask is clear. b. a. c. After the gunner has announced, "Up," the squad leader should check the mortar to determine if the exercise was performed correctly. The BAD is removed only by qualified maintenance personnel. The air burst over average types of soil ranges from 1 to 6 meters, depending on the angle of approach. He then checks the sight picture to ensure he is within 20 mils of a proper sight picture. The gunner moves the mortar as the assistant gunner steadies it. (2) The fin and fuze assembly must be checked for tightness and damage. The M532 fuze is a radio doppler fuze that has a proximity (PROX) or SQ/IMP function. The term "danger close" is included in the call for fire when there are friendly troops or positions within a prescribed distance of the target, specifically 600 meters for artillery or mortars . If the barrel is hot, the gunner may then apply water to the outside of the barrel until it is cool. Red phosphorus cartridges (M252 only) are stored the same as HE cartridges. If the barrel is cool enough to handle, the crew removes the round as described below. .50 MACHINE GUN, M55 AND MACHINE GUN, CAL. The gunner should expose 6 inches (150 millimeters) of elevation shaft and center the buffer carrier. They should not be approached for 5 minutes or disturbed for at least 30 minutes after firing. M252 81mm Mortars The M252 81mm medium extended range mortar (see diagram below) is a crew-served, smooth bore, muzzle loaded, high angle of fire weapon system. a. Point-Detonating. It is a smooth-bore, muzzle-loading, high-angle-of-fire weapon used for long-range indirect fire support to light infantry, air assault, and airborne units across the entire front of a battalion zone of influence. (2) The ribs and braces have no breaks, cracks, or dents. 81MM M252A1. It is constructed from ductile cast iron and contains about 1.5 pounds of cyclonite (RDX)/trinitrotoluene (TNT) composition explosive. He releases the securing strap, loosens the leg-locking handwheel, and lowers the plain leg until the locating catch engages in the recess. General Dynamics Ordnance and Tactical Systems' 81mm Roll Controlled Guided Mortar (RCGM) provides an affordable, flexible solution to meet that need. This section discusses the characteristics and nomenclature of each component (Figure 4-2). The fuze is not intended to function at charge 0. This section implements STANAG 2321 and QSTAG 900 (Edition 1). The mortar is within two turns of center of traverse. Increments removed from cartridges before firing should be placed in a metal or wooden container located outside the firing vehicle/position at least 25 meters away. The 81-mm mortar, M252, is a smooth-bore, muzzle-loaded, high-angle-of-fire weapon. b. During firing, the breech plug on the barrel is sealed and locked to the rotatable socket in the baseplate. Figure 4-4. The cartridge uses the M218 propelling charge, which consists of four horseshoe-shaped increments fitted around the tail. There is a selector on the lower shaft for non-delay or delay impact action. The fuze has a safety wire that must be removed before firing. Illuminating is used for battlefield illumination and signaling. Developed by Hirtenberger Defence Systems (HDS), the rugged and reliable M8 comprises an 81 mm long-range weapon available in different barrel lengths, an entire range of ammunition, auxiliary field equipment, sighting systems and a fully digital fire-control system containing all ballistic data. The American M1 81mm Mortar, like the upcoming M2 60mm Mortar, was based on a French design by Edgar William Brandt (1880-1960). From introduction up to halfway World War 2 the ML 3-inch had a poor range of up to 1.45 km. Additional information is included on an ammunition data card inside each container. (6) The primer cartridge is checked for damage or dampness. This section contains information on how to prepare the 81-mm mortar, M252, for firing, how to conduct safety checks, and, if a misfire should occur during firing, what actions the crew applies to remove the cartridge from the barrel. The muzzle end has a short tapered lead-in which acts as a . *FREE* shipping on qualifying offers. The body is made of aluminum and brass. He uses the chain of command to assist him in effecting his command and supervising duties.
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