81mm mortar range table

The propellant increments are ignited, which produce rapidly expanding gases that force the cartridge from the barrel. The 0-second boss is wider and differs in shape from the other body bosses; the safe setting position is indicated by the letter "S" on the fuze body. An official website of the United States government. 4-10. As soon as the sight data are announced, the gunner places it on the sight. This section discusses the characteristics and nomenclature of each component (Figure 4-2). The round has a burst height of 600 meters and provides illumination for about 60 seconds for an area of about 1,200 meters. It should be destroyed in accordance with standard procedures. An air cavity can form on one side of a cartridge to unbalance it, causing instability in flight. Notches in the setter engage ribs in the setting ring of the fuze. Lock Range Minimum to maximum 83 to 5,608 meters Rate of Fire . 60MM M224A1. Excess increments should not accumulate near the mortar positions but are removed to a designated place of burning and destroyed. d. The M374A2, M374A1, and M374 HE cartridges are painted olive drab with yellow markings and are constructed from pearlitic malleable cast iron. The M252 81 mm medium weight mortar is a British-designed 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. LARGE DEFLECTION AND ELEVATION CHANGES. Any target that requires that elevation, or a lower one, cannot be engaged from that position. 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 M120/M121 120 mm Mortar. c. The first ammunition bearer checks the barrel and ensures that--. Propelling charges are covered or protected from dampness or heat. b. Short cartridges can be expected when firing below charge 4. The mortar is mounted and the sight is installed. The BAD is removed only by qualified maintenance personnel. The components of the mortar consist of a cannon, mount, and baseplate. (4) The leg-locking handwheel is hand tight. Training practice--M879, M880, M68, and sabot. b. It has no safety pins or wires to reduce preparation time. They are assembled with either an M524-series, M526-series, or M567 fuze. It was even a tool used by airborne units, and was dropped in parachute bundles during Operations Neptune, Market Garden, and Varsity. Each cartridge weighs about 10 pounds and is provided with the M223 propelling charge, consisting of four horseshoe-shaped increments fitted around the tail. If it is necessary to leave the ammunition uncovered, it should be raised on dunnage at least 6 inches above the ground. Designed by Thingsym. After the mortar is mounted, the gunner makes a thorough check. Normally, it can be moved by hand, although this may be difficult to do if the mortar is moved through a large arc. There must not be a visible gap between the fuze and cartridge body. This action breaks an internal sheet pin and internal wire, thereby disabling the proximity function. It is set using the bladed end of the M18 fuze wrench. b. The bipod provides front support for the barrel and carries the gears necessary to lay the mortar. (8) To help minimize the occurrence of short rounds and or duds, unpackaged ammunition that has been dropped should not be fired. (3) The circlip is correctly located, securing the rotating socket to the baseplate. [1] [2] Many countries use or used an 81 mm mortar in their armed forces. High angles of approach (near vertical) give the lowest burst heights. They are fuzed with the M524-series, M256-series, or M532. Then it is removed from the bipod and laid horizontally on the ground at the dud pit until it can be turned over to ordnance personnel. The striker has been modified to be able to use German and Italian patterns of 81mm mortar . The M252 81mm medium extended range mortar (see diagram below) is a crew-served, smooth bore, muzzle loaded, high angle of fire weapon system. (6) The primer cartridge is checked for damage or dampness. The fuze has a safety wire that must be removed before firing. b. The M252 is highly accurate up to ranges of 4500m to 5700m depending on the Examples are: The components of the mortar consist of a canon, sight, mount, and baseplate. It is designed to be fired in the indirect fire mode, cannot be fired handheld, and normally utilizes a FDC. 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. A plain leg is fitted to a stud on the elevating leg and is secured by a leg-locking handwheel. The M375A3 cartridge is ballistically similar to the M374A3 (HE) cartridge. The components of the mortar consist of a cannon, mount, and baseplate. Official websites use .mil (d) Firing is slowed if mask clearance must be checked before each firing but this can be eliminated if minimum mask clearance is determined. c. The assistant gunner disengages the barrel clamps and moves the bipod from the immediate area of the mortar position. It arms within a maximum of 2.50 seconds. The mortar squad consists of five men (Figure 4-1). He makes large deflection shifts by shifting the bipod assembly and keeps the bubbles level during firing. (4) The blast attentuator device is secured correctly. The fuze body is graduated from 0 to 25 seconds in 1-second intervals; 5-second intervals are indicated by bosses. Red phosphorus/white phosphorus--M819 and M375-series. It contains white phosphorus that produces white smoke on contact with air. The safety pull wire is removed just before inserting the cartridge into the mortar. Then he relocks the barrel clamp. No tools are needed to set the fuze, and the setting can be changed several times without damaging the fuze. Section I. At the muzzle end is a cone-shaped blast attenuator device (BAD) that is fitted to reduce noise. The first ammunition bearer holds the barrel until the assistant gunner has removed the mount. They function normally in light rain; however, heavy rain, sleet, or snow can cause an increase in the number of early bursts. Red phosphorus/white phosphorus is used for screening, producing casualties, creating incendiary effects, and signaling. This cartridge is ballistically matched to the M374A2, M374A1, and M375 HE cartridges, and weighs about 9.12 pounds. The gunner places the outer edge of the baseplate against the baseplate stake so that the left edge of the cutaway portion of the baseplate is aligned with the right edge of the stake (Figure 4-7). One-quarter turn on the adjusting nut equals one turn of the traversing handwheel. The M252 81 mm medium weight mortar is a British designed 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. Theme by TechDoc. The propelling charge is contained in four horseshoe-shaped, felt-fiber containers or nine wax-tested, cotton cloth, bag increments. Tabular Firing Tables TFT ORDER FORM 1.Select "Mortar" 2.Select which mortar caliber 3.Select mortar system nomenclature 4.Select which TFTs to order 5.Put in quantity and click "Add TFTs" 6.Click "Next" TFT JUSTIFICATION 1.Put in TFT Ordering Justification 2.Click "Next" SHIPPING INFORMATION 1.Fill out all required fields With standard mortar, the maximum effective range is close to 4,000 metres; with a long-range system, this increases to nearly 4,500 metres. The 60mm mortar section is located in the weapons platoon of the rifle company, is armed with three 60mm mortars, and is The mortar should be within two turns of center of traverse when the task is compete. It is especially useful if the baseplate sinks deep into the ground during prolonged firing. The M375 cartridge uses the M90 propelling charge while the M375A2 and M375A1 cartridges use the M90A1 propelling charge. b. d. Climatic Effects. 4-12. After the rounds have been removed, they should always be handled with two hands to prevent accidental dropping. The safety/packing clip should be removed when the cartridge is unpacked. The fuze setter, M25, sets M84-series time fuzes. The M374 cartridge is fitted with the M90 propelling charge. On its right side, the clamp is recessed to receive the ball end of the locking rod. Fuzes are not disassembled. The fuze consists of a brass head, body assembly, and expelling charge. ), FIRING TABLES FOR 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 AND HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A4 AND CANNON, 155MM HOWITZER, M284 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A5 AND HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A6 AND CANNON, 155MM HOWITZER, M199 ON HOWITZER, MEDIUM, TOWED, 155MM, M198 AND CANNON, 155MM HOWITZER, M776 ON HOWITZER, MEDIUM, TOWED, 155MM, M777A1 FIRING PROJECTILE, HE, M483A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR, CANNON, 155MM, HOWITZER, M185 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, 109A1 HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, 109A1B HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A2 HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A3 HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A3B AND HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, 109A4 AND CANNON, 155MM, HOWITZER, M284 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, 109A5 AND HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, 109A6 AND CANNON, 155MM, HOWITZER, M199 ON HOWITZER, MEDIUM, TOWED, 155MM, M198 AND CANNON, 155MM HOWITZER, M776 ON HOWITZER, MEDIUM, TOWED, 155MM, M777A1 FIRING PROJECTILE, HERA, M549 PROJECTILE, HERA, M549A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR 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, HERA, M549 AND PROJECTILE, HERA, M549A1 (S&I BY PROPONENT, SEE DEAILS, FOOTNOTES. The obturating ring ensures equal muzzle velocities in hot or cold barrels by keeping all the gases in the barrel until the cartridge has fired. Powered by Hugo. High explosive is used for both fragmentation and blast effect against personnel and light-skinned vehicles. Table 4-3. The fuze threads and fuze well threads are inspected for damage. If required, the gunner/assistant gunner lowers the barrel so that the breech plug engages with the open end of the socket, and he uses the barrel as a lever to move the socket. Safety before firing is provided by a safety wire, which must be removed just before firing. Remaining increments are repositioned towards the rear of the tail fin assembly when firing the cartridge with horseshoe-shaped increments at less than full charge. MC Medical Guide; Client-side mods; TFAR 1.x for players; At the same time, the first ammunition bearer moves out on the double to realign the aiming posts. c. The moisture-resistant seal of the container is broken when the ammunition is to be used. Both the 60mm and 120mm mortar rounds use White Phosphorus. Bear in mind that these are my personal opinions, experiences, and . The removable increments are fitted onto or around the shaft, depending on their type. I say 120s are bad because they suffer from terrible dispersion even when not shooting at 6km. If he is not within 20 mils, the gunner and assistant gunner must make another large shift before moving on. These fuzes use a clockwork mechanism to delay functioning for a specific time. The M1 was a derivative of the French mle 27/31 system (itself an improved form of the Stokes Trench Mortar of World War 1 fame) and slightly altered to suit American needs. (2) The M84 fuze is a single-purpose, powder-train, mechanical-time fuze used with the 81-mm M301A1 and M301A2 illuminating cartridges. Long Range PGK. (2) Color code. The cartridge uses the M218 propelling charge, which consists of four horseshoe-shaped increments fitted around the tail. The cartridge can be fitted with the M524-series, M526-series, M567, or M532 fuzes. a. The M821A2/821A1/889A1 consists of the following major components: M935 Point Detonating Fuze or M734/734A1 Multi-Option Fuze. Do not burn increments in piles but spread them in a train 1 to 2 inches deep, 4 to 6 inches wide, and as long as necessary. The 81-mm mortar, M252, is a smooth-bore, muzzle-loaded, high-angle-of-fire weapon. The cartridge must not be fired below charge 3. Safety before firing is provided by a safety wire, which must be removed just before firing. The fuze wrench, M18, assembles the fuze to the cartridge, and the bladed tip on the end sets PD-type fuzes. The gunner is given a deflection and elevation change in a fire command causing the gunner to shift the mortar between 200 and 300 mils for deflection and between 100 and 200 for elevation. .50: BALL, M2 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR WEAPON, 5.56MM, M16A1 WEAPON, 5.56MM, M16A2 WEAPON, 5.56MM, M249 AND WEAPON, 5.56MM, M4 FIRING CARTRIDGE, BALL, M855 CARTRIDGE, TRACER, M858 CARTRIDGE, BALL, M193 CARTRIDGE, TRACER, M196 (S&I BY PROP SEE DETAILS, FOOTNOTES), MACHINE GUN, 7.62-MM: M60 ON MOUNT, MACHINE GUN: 7.62-MM, M122 AND MACHINE GUN, 7.62-MM: M73 ON TANK, COMBAT, FULL-TRACKED: 105-MM GUN, M60 SERIES AND RIFLE, 7.62-MM: M14; FIRING CARTRIDGE, 7.62-MM, BALL, NATO, M59; CARTRIDGE, 7.62-MM, BALL, NATO, M80; CARTRIDGE, 7.62-MM: AP, NATO, M61 AND CARTRIDGE, 7.62-MM: TRACER, NATO, M62 (REPRINTED W/BASIC INCL C1) (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 8-Q-1 FOR PROJECTILE, HE, M404 (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 8-J-4 FOR PROJECTILE, HE, M404 (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 8-T-1 FOR PROJECTILE, HE: M509A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 8-INCH HOWITZER, M201A1 ON HOWITZER, HEAVY, SELF-PROPELLED, 8-INCH, M110A2 FOR LOW ANGLE FIRING PROJECTILE, HE, M509A1 USING REGISTRATION DATA FOR PROJECTILE, HE, M106 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 8-INCH HOWITZER: M2 AND M2A1 ON HOWITZER, HEAVY, TOWED: 8-INCH, M115; CANNON, 8-INCH HOWITZER: M47 ON HOWITZER, HEAVY, SELF-PROPELLED, FULL TRACKED: 8-INCH, M55; CANNON, 8-INCH HOWITZER: M2A1E1 ON HOWITZER, HEAVY, SELF-PROPELLED: 8-INCH, M110; FIRING PROJECTILE, HE: M106 AND PROJECTILE, CHEMICAL: M426 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 8-INCH HOWITZER, M201 ON HOWITZER, HEAVY, SELF-PROPELLED: 8-INCH, M110A1 AND CANNON, 8-INCH HOWITZER, M201A1 ON HOWITZER, HEAVY, SELF-PROPELLED: 8-INCH, M110A2 AND FIRING PROJECTILE, HE, M106 PROJECTILE, CHEMICAL, M426 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 8-INCH HOWITZER: M201A1 ON HOWITZER, HEAVY, SELF-PROPELLED, 8-INCH, M110A2; FIRING PROJECTILE, HE, RA; M650 AND PROJECTILE, ATOMIC: M753 AND M753A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 8-INCH HOWITZER, M201A1 ON HOWITZER, HEAVY, SELF-PROPELLED: 8-INCH, M110A2 FIRING PROJECTILE, HE, M509A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 14.5-MM GUN, M31; ARTILLERY TRAINER FIRING FUZED CARTRIDGES, M181, M182 AND M183 (S&I BY PROP SEE DETAILS, FOOTNOTES), GUN, 20-MM, AUTOMATIC, M139; FIRING CARTRIDGE, 20-MM, HEIT, M599; CARTRIDGE, 20-MM, TPT, M206 AND CARTRIDGE, 20-MM, APIT, M601 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR CANNON, 25MM GUN, M242 ON INFANTRY FIGHTING VEHICLE, M3 FIRING CARTRIDGE, APDS-T, M791 CARTRIDGE, HEI-T, M792 CARTRIDGE, TP-T, M793 CARTRIDGE, TPDS-T, M910 (S&I BY PROP SEE DETAILS, FOOTNOTES), GUN, AUTOMATIC, 40-MM, M1 AND GUN, DUAL AUTOMATIC, 40-MM, M2; FIRING CARTRIDGE, HE-T, SD, MK 2 WITH FUZES, PD, MK 27, M64A1, M71 OR NO. d. The squad leader supervises the squad drill and is responsible for supervising the laying out of the equipment as shown in Figure 4-6. He positions the lower barrel clamp against the lower stop band on the barrel and secures the upper barrel clamp. After the bands are broken and the box opened, the rounds should be removed by allowing them to roll out along the lid of the box (Figure 4-8). 0.50, M8 (REPRINTED W/BASIC INCL C1-2) (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MACHINE GUN, CALIBER .50: BROWNING, M2 (HEAVY BARREL, TURRET TYPE) ON MOUNT, MACHINE GUN, TRAILER MOUNTED: MULTIPLE CALIBER .50 MACHINE GUN, M55 FIRING CARTRIDGE, CALIBER .50: API, M8 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MACHINE GUN, CALIBER .50: FICED, M85 TANK, COMBAT, FULL TRACKED: 105MM GUN, M60 SERIES FIRING CARTRIDGE, CALIBER .50: API, M8 CARTRIDGE, CALIBER .50: API-T M20 CARTRIDGE, CALIBER .50: BALL, M33 CARTRIDGE, CALIBER .50: TRACER, M17 (S&I BY PROP SEE DETAILS, FOOTNOTES), MACHINE GUN, CAL. All rounds are colored according to their type. The barrel clamps are then closed. .50 MACHINE GUN, M55 AND MACHINE GUN, CAL. (2) The breech plug is screwed tightly to the barrel. He indicates the initial direction of fire by pointing in that direction and commands ACTION. ), FIRING TABLES FOR, CANNON, 155MM, HOWITZER, M185 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, 109A1 HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, 109A1B HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A2 HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A3 HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A3B AND HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, 109A4 AND CANNON, 155MM, HOWITZER, M284 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, 109A5 AND HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, 109A6 AND CANNON, 155MM, HOWITZER, M199 ON HOWITZER, MEDIUM, TOWED, 155MM, M198 AND CANNON, 155MM, HOWITZER, XM776 ON HOWITZER, MEDIUM, TOWED, 155MM, XM777 FIRING PROJECTILE, HE, M795 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR 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, SMOKE, WP, M1121 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 FOOTNOTES).

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