(5) Do not leave unused increments unburned in combat operational areas. d. When the barrel reaches the horizontal position, and not before, the assistant gunner moves the thumb of each hand over the muzzle. The round has a burst height of 600 meters and provides illumination for about 60 seconds for an area of about 1,200 meters. 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). 9301 Chapek Road., Bldg.1458 Burst Height. Identification. He stands to the rear of the baseplate and supports the barrel until the bipod is fitted. If not, the cartridge is placed on its side, and the closing plug is removed using an M18 fuze wrench. He indicates the initial direction of fire by pointing in that direction and commands ACTION. It is fitted with a safety wire and pin that are removed immediately before firing. A securing strap is attached to the plain leg for securing the bipod in the folded position. He tightens the leg-locking handwheel (ensuring the teeth are correctly meshed) and fastens the securing strap over the arm and around the buffers. M3A1 Baseplate If, upon removal of the safety wire, a buzzing sound in the fuze is heard, the round should not be used. 4-4. From introduction up to halfway World War 2 the ML 3-inch had a poor range of up to 1.45 km. The squad leader points to the exact spot where the mortar is to be mounted. REFER DEFLECTION TWO EIGHT SEVEN FIVE (2875), REALIGN AIMING POSTS. He ensures that the firing pin recess is facing upwards. To set for delay, the selector slot should be rotated clockwise until it is aligned with the "D" mark on the ogive. If it is necessary to leave the ammunition uncovered, it should be raised on dunnage at least 6 inches above the ground. The cartridges are painted olive drab with yellow markings. They function normally in light rain; however, heavy rain, sleet, or snow can cause an increase in the number of early bursts. Table 4-2. No tools are needed to set the fuze, and the setting can be changed several times without damaging the fuze. Excess increments should not accumulate near the mortar positions but are removed to a designated place of burning and destroyed. b. He must ensure that the ball-shaped end of the locking rod is secured in its recess by the locking latch. A plain leg is fitted to a stud on the elevating leg and is secured by a leg-locking handwheel. The cartridge weighs about 9.12 pounds. 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. At the same time, the first ammunition bearer moves out on the double to realign the aiming posts. The M252 is highly accurate up to ranges of 4500m to 5700m depending on the The mortar is then re-laid on the aiming posts using the traversing crank. The leg-locking handwheel must then be tightened, ensuring the teeth are correctly meshed. (3) The securing strap is correctly located, securing the barrel clamps and buffers to the plain leg. He has the duty of preparing the ammunition and passing it to the assistant gunner. General Dynamics Ordnance and Tactical Systems is the leading manufacturer of propellants for 60mm, 81mm and 120mm Mortar Systems. . It has four function settings: PRX (proximity) causes the cartridge to explode between 3 and 13 feet above the ground; NSB (near-surface burst) causes the cartridge to explode up to 3 feet above the ground; IM (impact) causes the cartridge to explode on contact; and DLY (delay) incorporates a 0.05-second delay in the fuze train before exploding the cartridge. (See FM 7-90 for a discussion of the duties of the platoon headquarters.). d. The first ammunition bearer stands to the right rear of the mortar. When set at SQ, the fuze functions on point impact or graze contact. 0.30, BROWNING, M1917A1; GUN, MACHINE: CAL. The powder increments, mainly, should not be exposed to direct sunlight. M64A1 Sightunit. .30 BROWNING, M1917 AND M1917A1; GUN, MACHINE, CAL. a. The American M1 81mm Mortar, like the upcoming M2 60mm Mortar, was based on a French design by Edgar William Brandt (1880-1960). d. The gunner rough levels the cross-level bubble by making the bubble bounce from one side to the other. REFERRING OF THE SIGHT AND REALIGNMENT OF AIMING POSTS USING M64 SIGHT. When the approximate alignment is completed, the gunner signals the assistant gunner to lower the bipod by pushing down on the mortar. It is light enough to be portable when broken down into. It comes preset to function on SQ/IMP, and the selector slot should align with the SQ mark on the ogive. News. The air burst over average types of soil ranges from 1 to 6 meters, depending on the angle of approach. The gunner stands to the left side of the mortar where he can manipulate the sight, elevating handwheel, and traversing handwheel. (1) Marking on container. At the muzzle end is a cone-shaped blast attenuator device (BAD) that is fitted to reduce noise. The gunner can depress the barrel, if necessary, to provide easier access to the firing pin. (2) The barrel is locked to the baseplate, and the open end of the socket points in the direction of fire. The M252 81mm medium extended range mortar (see diagram below) is a crew-served, smooth bore, muzzle loaded, high angle of fire weapon system. It was even a tool used by airborne units, and was dropped in parachute bundles during Operations Neptune, Market Garden, and Varsity. It is especially useful if the baseplate sinks deep into the ground during prolonged firing. (4) The bipod locking latch is locked, securing the barrel clamps. d. The ammunition is protected from mud, sand, dirt, and water. Correct way to open an ammunition box. high-explosive bomb at a range of about three miles. With the clamps facing away from him, the assistant gunner traverses the buffer carrier to the traversing handwheel and folds the handle. Agreed that mortars should generally be used close to the frontline. Cartridges assembled with the M524 (A1, A2, A3, or A4) fuze are for use by the U.S. Marine Corps and U.S. Navy only. Propelling charges are covered or protected from dampness or heat. 81mm 120mm 60mm . ), 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). (3) The circlip is correctly located, securing the rotating socket to the baseplate. The propelling charges are assembled around the fin assembly shaft. The settings are obtained from the range tables and are applied using a wrench (number 9239539) or a 1 3/4-turn open-end wrench. a. The first ammunition bearer puts both hands on the cooling fins under the barrel and slowly lifts the barrel until it is horizontal. 60MM M224A1. This is the inert PD fuze type "IR-81" used by the Italians for their 81mm mortar rounds during WWII. System (including basic issue items) LHMBC. 60mm, 81mm, and 120mmMortar Increments. The gunner removes the sight and places it in the case with 3200 deflection and 0800 elevation indexed. The M853 cartridge (M252 only) has a cylindrical body that contains an illuminating candle and parachute assembly. (1) The M772A1 fuze is a MTSQ. d. Climatic Effects. c. Crest Clearance. The sight is laid on 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 traversing screw assembly is fitted to the clamp assembly, which is pivoted in the center on an arm attached to the elevating leg. MFCS Mounted. If the primer of the ignition cartridge is dented, the first ammunition bearer attempts to replace the safety wire and places the round in a marked, safe location for disposal by ordnance personnel. The fuze should already be fitted to the cartridge. I have included my order history, detailed photos, as well as my personal opinion on International Military Antiques, IMA -USA www.ima-usa.com 81mm Display Mortar that they have for sale. The gunner unlocks the barrel clamp and rotates the barrel, unlocking the breech plug from the rotating socket of the baseplate. Close approach to crests, trees, towers, large buildings, parked aircraft, mechanized equipment, and similar irregularities causes functioning at heights greater than average level. The components of the mortar consist of a cannon, mount, and baseplate. Lock Powered by Hugo. The 60mm mortar section is located in the weapons platoon of the rifle company, is armed with three 60mm mortars, and is Several types of HE ammunition are used in the 81-mm mortar, M252. c. The first ammunition bearer checks the barrel and ensures that--. He may assist the gunner in shifting the mortar when the gunner is making large deflection changes. 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 fuze consists of a brass head, body assembly, and expelling charge. The increments are individually wrapped with waterproof bags that are not removed. Both the 60mm and 120mm mortar rounds use White Phosphorus. When the baseplate is in position, the first ammunition bearer lowers the breech plug into the rotating socket and rotates the barrel a quarter of a turn to lock it. This is accomplished by depressing the barrel until the top of the mask is clear. Referring and realigning aiming posts ensure that all mortars are set on the same data. The M734 multioption fuze is the only one used with the 81-mm mortar. The aluminum tail assembly has six integral fins equally spaced around the rear, which stabilize the round in flight. After the rounds have been removed, they should always be handled with two hands to prevent accidental dropping. The assistant gunner exposes 8 inches (200 millimeters) of elevation shaft, leaving the elevation handwheel unfolded. FIRING TABLE 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; AND HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A3B; 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 FIRING PROJECTILE, GUIDED, M712 (COPPERHEAD) WITH SHAPED TRAJECTORIES (S&I BY PROP SEE DETAILS, FOOTNOTES), PROVISIONAL AIMING DATA FOR CANNON, 155MM, HOWITZER, M185 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, 109A1 HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, 109A1B HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A2 AND 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, BASE-BURN, M864 AND M864A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), PRELIMINARY AIMING DATA FOR CANNON, 155MM HOWITZER, M284 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A6 AND CANNON, 155MM HOWITZER, M776 ON HOWITZER, MEDIUM, TOWED, 155MM, M777A2 FIRING PROJECTILE, HE, XM982 (S&I BY PROP SEE DETAILS, FOOTNOTES), PROVISIONAL AIMING DATA FOR CANNON, 155MM HOWITZER, M284 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A6 AND CANNON, 155MM HOWITZER, M776 ON HOWITZER, MEDIUM, TOWED, 155MM, M777A2 FIRING PROJECTILE, HE, XM982 (S&I BY PROP SEE DETAILS, FOOTNOTES), PROVISIONAL AIMING DATA FOR CANNON, 155MM HOWITZER, M284 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A6 AND CANNON, 155MM HOWITZER, M776 ON HOWITZER, MEDIUM, TOWED, 155MM, M777A2 FIRING PROJECTILE, HE, M982 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 165-MM GUN, M135 ON COMBAT ENGINEER VEHICLE, FULL TRACKED, M728; FIRING CARTRIDGE, 165-MM, HEP, M123A1 AND 165-MM, TP-T, XM623 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 175-MM GUN, M113 AND M113A1 ON GUN, FIELD ARTILLERY, SELF-PROPELLED: 175-MM, M107; FIRING PROJECTILE, HE, M437A2 AND M437A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), RAPID FIRE TABLES FOR CALCULATION OF THE EXECUTIVE OFFICERS (XOS) MINIMUM QUADRANT ELEVATION WITH CANNON, 105MM HOWITZER, M20A1 ON HOWITZER, LIGHT, TOWED, 105MM, M119A1; HOWITZER, LIGHT, TOWED, 105MM, M119A2; HOWITZER, LIGHT, TOWED, 105MM, M119A3 FIRING WITH PROPELLING CHARGES, M67 AND M200 (S&I BY PROP SEE DETAILS, FOOTNOTES), RAPID FIRE TABLES FOR CALCULATION OF THE EXECUTIVE OFFICER S (XO S) MINIMUM QUADRANT ELEVATION WITH CANNON, 155MM HOWITZER, M284 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A5/A6 AND CANNON, 155MM HOWITZER, M199 ON HOWITZER, MEDIUM, TOWED, 155MM, M198 AND CANNON, 155MM HOWITZER, M776 ON HOWITZER, MEDIUM, TOWED, 155MM, M777A1/A2 FIRING WITH PROPELLING CHARGES, M231, M232, AND M232A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), RAPID FIRE TABLES FOR CALCULATION OF THE EXECUTIVE OFFICERS (XOS) MINIMUM QUADRANT ELEVATION WITH CANNON, 155MM HOWITZER, M284 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A5; HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A6; AND HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A7, AND CANNON, 155MM HOWITZER, M776 ON HOWITZER, MEDIUM, TOWED, 155MM, M777A1 AND HOWITZER, MEDIUM, TOWED, 155MM, M777A2 FIRING WITH PROPELLING CHARGES, M231, M232, AND M232A1 (S&I BY PROPONENT, SEE DETAILS, FOOTNOTES), ADDENDUM TO FTR LANCE-B-1 FOR WARHEAD SECTION, GUIDED MISSILE, HE: M251 (U) (S&I BY PROP SEE DETAILS, FOOTNOTES), Search Army publications and forms by Number, Title, or Record Detail. MC Medical Guide; Client-side mods; TFAR 1.x for players; 81 mm HE mortar projectiles generally contain anywhere between 400 g and 680 g of HE and have a maximum range of approximately 6,500 m. 82 mm HE mortar projectiles generally contain anywhere between 392 g and 680 g of HE and have maximum ranges of between 3,000 - 5,500 m. The squad leader picks up the sight case and the two aiming posts, and moves to the exact position where the mortar is to be mounted. The M375 cartridge uses the M90 propelling charge while the M375A2 and M375A1 cartridges use the M90A1 propelling charge. He positions the lower barrel clamp against the lower stop band on the barrel and secures the upper barrel clamp. Correctly applying and performing these duties enables the mortar section to perform as an effective fighting team. When a large number of cartridges are needed for a mission, they may be removed from the containers and prepared. Figure 4-7. An ammunition lot number is assigned to each ammunition lot, which is marked on each cartridge and packing container. 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) . 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. The striker has been modified to be able to use German and Italian patterns of 81mm mortar . on Amazon.com. Despite its weight though, the 81mm mortar was an important part of the Table of Organization and Equipment of U.S. Army and U.S. Marine Corps maneuver battalions throughout World War II. At the command, MARCH ORDER, the squad places the mortar, equipment, and ammunition in the squad vehicle and trailer. a. b. MORTAR RANGE: 500M X 100M X: FIELD TRAINING AREA 40000 Sq Ft: X STORAGE BUILDING, GENERAL PURPOSE, INSTALLATION: Area to store excess equipment X: ORGANIZATIONAL STORAGE BUILDING Arms room for Mortar equipment: X . 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. a. Point-Detonating. c. The elevating shaft is contained in the elevating leg; to the left of the elevating leg is the elevating handwheel. c. The moisture-resistant seal of the container is broken when the ammunition is to be used. (2) The ribs and braces have no breaks, cracks, or dents. An 81 mm mortar is a medium-weight mortar. The RSTA squadron only receives the 120mm mounted mortar, there is no augmentation dismounted maneuvers. Overhead interference can be branches of trees or roofs of buildings. The M821/M889 are 81mm HE Mortar Cartridges. He exposes 4 inches (100 millimeters) of elevation shaft and folds the handle. The muzzle end has a short tapered lead-in which acts as a . Short cartridges can be expected when firing below charge 4. A proximity fuze is an electronic device that detonates a projectile by means of radio waves sent out from a small radio set in the nose of the projectile. The cartridge is painted olive drab with yellow markings and weighs about 9.05 pounds. Fired . Range Minimum to maximum 83 to 5,608 meters Rate of Fire . High explosive--M821, M889, M374-series, and M362. (6) The primer cartridge is checked for damage or dampness. 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. Cartridges assembled with the M524 (A1, A2, A3, or A4) fuze are for use by the US Marine Corps and US Navy only. 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. FT 81-AI-3 Firing Tables Mortar, 81mm: M28A1 and M29 Mortar 81mm Self propelled M125A1 and M125 Carrier, 81mm Mortar Tracked XM755 A spring-loaded locating catch is behind the elevating gear housing, which locates the plain leg in its supporting position for level ground. The fuze contains a delayed arming feature that ensures the fuze remains unarmed and detonator safe for a minimum of 1.25 seconds of flight. The mortar squad consists of five men (Figure 4-1). It has a time setting of up to 50 seconds. To make the shift, the gunner places the fingers of his right hand in the muzzle and his left hand on the left leg. One-quarter turn on the adjusting nut equals one turn of the traversing handwheel. 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. It uses the M205 propelling charge, consisting of four horseshoe-shaped increments fitted around the tail. The assistant gunner carries the bipod to the front of the barrel and places the bipod feet on the ground 12 to 15 inches in front of the baseplate and astride the line of fire. 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. Cartridges assembled with the M532 fuze must be fired above charge 0. The following are authorized (Standard B) cartridges for the 81-mm mortar, M252: Each cartridge has fins around the tail to stabilize it in flight and to cause it to strike fuze-end first. As soon as the sight data are announced, the gunner places it on the sight, lays the mortar for elevation, and traverses onto the aiming post by turning the traversing handwheel and adjusting nut in the same direction. Red phosphorus/white phosphorus--M819 and M375-series. The removable increments are fitted onto or around the shaft, depending on their type. After the 30-minute waiting period, the dud is still dangerous but can be approached and removed carefully or destroyed in place by qualified disposal personnel. All PD fuzes are superquick--detonate on impact. The contents of ammunition containers are shown by markings. Both legs are fitted with a disk-shaped foot with a spike beneath to prevent the mount from slipping. That is generally how I use mortars. Upon completion of any bipod movement on the barrel, the gunner ensures that the firing pin recess is facing upward. This round must be stored in a vertical position. Each cartridge weighs about 10 pounds and is provided with the M223 propelling charge, consisting of four horseshoe-shaped increments fitted around the tail. 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. [1] [2] Many countries use or used an 81 mm mortar in their armed forces. It is assembled with the M772A1 MTSQ. I say 120s are bad because they suffer from terrible dispersion even when not shooting at 6km. It contains white phosphorus that produces white smoke on contact with air. The assistant gunner checks the bipod and ensures that--. Section I. End this starting train with not less than 1 meter of inert material (dry grass, leaves, or newspapers). It is designed to be fired in the indirect fire mode, cannot be fired handheld, and norm ally utilizes a FDC. HE Guided Mortar is in development. d. The M374A2, M374A1, and M374 HE cartridges are painted olive drab with yellow markings and are constructed from pearlitic malleable cast iron. The barrel clamps are then closed. 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. The cartridges are returned to their original containers. He maintains the ammunition for firing and provides local security for the mortar position. These propellants are flash-suppressed and clean burning resulting in minimum residue, flash and blast overpressure. *FREE* shipping on qualifying offers. As soon as the sight data are announced, the gunner places it on the sight. 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 components of the mortar consist of a cannon, mount, and baseplate. The ignition cartridge has a percussion primer and is assembled to the end of the fin assembly. CANNON . Target terrain, such as ice and dry sand, gives lowest burst heights, whereas water and wet ground give highest burst heights. If the situation allows for a longer waiting period, the dud can be considered safe for handling after 40 hours. .50: AP, M2 AND CARTRIDGE, CAL. The types of fuzes described in this paragraph are point detonating, proximity, mechanical time, multioption, and dummy. The squad leader stands behind the mortar where he can command and control his squad. Prev - Mk6 Mortar range table for charge 0 Next - Mk6 Mortar range table for charge 2 . (3) The M84A1 fuze is a single-purpose, tungsten-ring, mechanical-time fuze used with the 81-mm M301A3 illumination cartridge. They are painted light green with red markings and one narrow yellow band.
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