He moves the mortar until the vertical line of the sight is aligned approximately on the aiming post. 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. When set at SQ, the fuze functions on point impact or graze contact. .50: BROWNING, M2 (HEAVY BARREL, TURRET TYPE) ON MOUNT, MACHINE GUN, TRAILER MTD: MULTIPLE CAL. Mount It can be fitted with either the M567, M524, or M532-series fuzes. Weights (pounds) System (including basic issue items) Barrel (with blast attenuator device) Mount M3A1 Baseplate 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. See Chapter 3, paragraph 3-14 for a detailed discussion of malfunctions. (3) From this train, extend a starting train that will burn against the wind of single increments laid end to end. It contains white phosphorus that produces white smoke on contact with air. [1] [2] Many countries use or used an 81 mm mortar in their armed forces. Each squad member should be able to perform all the following premount checks: a. He may assist the gunner in shifting the mortar when the gunner is making large deflection changes. (1) The rotating socket is free to move in a complete circle. An air cavity can form on one side of a cartridge to unbalance it, causing instability in flight. Light tree foliage and light vegetation affect the height of burst only slightly, but dense tree foliage and dense vegetation increase the height of burst. The striker has been modified to be able to use German and Italian patterns of 81mm mortar . REFER DEFLECTION TWO EIGHT SEVEN FIVE (2875), REALIGN AIMING POSTS. They use the M5 propelling charge that consists of eight cloth bags attached to the tail unit. He stands to the rear of the baseplate and supports the barrel until the bipod is fitted. When the fuze of the misfired round reaches the BAD, the assistant gunner stops the round with his thumbs (he does not touch the fuze) and carefully removes it from the barrel. 4-12. When the approximate alignment is completed, the gunner signals the assistant gunner to lower the bipod by pushing down on the mortar. Disposal Precautions. b. Fort Belvoir, VA 22060 While the assistant gunner supports the barrel, the gunner slackens the leg-locking handwheel, releases the locating catch, and positions the plain leg. The leg-locking handwheel must then be tightened by hand, ensuring the teeth on either side are correctly meshed. An 81 mm mortar is a medium-weight mortar. FT 81-AI-3 Firing Tables Mortar, 81mm: M28A1 and M29 Mortar 81mm Self propelled M125A1 and M125 Carrier, 81mm Mortar Tracked XM755 [US Army.] (b) In selecting the exact mortar position, the leader looks quickly for mask clearance and overhead interference. It is constructed from ductile cast iron and contains about 1.5 pounds of cyclonite (RDX)/trinitrotoluene (TNT) composition explosive. The fuze should already be fitted to the cartridge. Red phosphorus/white phosphorus--M819 and M375-series. The M252 medium mortar offers a compromise between the light and heavy mortars. Mount, M177, in folded position. The ignition cartridge has a percussion primer and is assembled to the end of the fin assembly. 4-10. The principal factors affecting height of burst are the angle of approach to the target and the reflectivity of the target terrain. . The tabulated data of the 81-mm mortar, M252, are shown in Table 4-1. It can be set from 3 to 55 seconds at half-second intervals. Notches in the setter engage ribs in the setting ring of the fuze. The cartridge is painted light green and has red markings and one narrow yellow band. The elevation change announced must be less than 90 mils and more than 35 mils. Agreed that mortars should generally be used close to the frontline. c. The gunner grasps both ends of the traverse screw assembly and supports the mortar during the subsequent drill. He then checks the sight picture to ensure he is within 20 mils of a proper sight picture. Section I. Mortars are indirect-fire weapon systems. The propelling charge is contained in four horseshoe-shaped, felt-fiber containers or nine wax-tested, cotton cloth, bag increments. He releases the securing strap, loosens the leg-locking handwheel, and lowers the plain leg until the locating catch engages in the recess. 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. Training practice is used only for training. He must ensure that the ball-shaped end of the locking rod is secured in its recess by the locking latch. b. One-quarter turn on the adjusting nut equals one turn of the traversing handwheel. Each round is stenciled with the ammunition lot number, type of round, type of filler, and caliber. MC Medical Guide; Client-side mods; TFAR 1.x for players; 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 . 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. c. The moisture-resistant seal of the container is broken when the ammunition is to be used. If the primer is not dented, the round may be used again. 0.30, BROWNING, M1919A4, M1919A5 AND M1919A6 {TO 39A-5 AF-32} (S&I BY PROP SEE DETAILS, FOOTNOTES), GUN, MACHINE, CAL. Before the mortar is mounted, the squad must perform premount checks. c. Upon receiving the command REFER, REALIGN AIMING POST, two actions take place at the same time in the mortar squad. They contain about 2.10 pounds of composition B explosive. 251 MK 1 AND CARTRIDGE, AP-T, M81 AND M81A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), RIFLE, 57-MM, M18, M18A1 AND T15E16; FIRING CARTRIDGE, HE, M306A1 AND CARTRIDGE, TP, M306A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), RIFLE, 57-MM, M18, M18A1 AND T15E16, FIRING CARTRIDGE, HE, AT, M307A1, MUZZLE/VELOCITY, 1200 F/S (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 60MM, M224 FIRING CARTRIDGE, HE, M720 CARTRIDGE, HE, M720A1 CARTRIDGE, HE, M49A4 CARTRIDGE, HE, M888 CARTRIDGE, HE, M768 CARTRIDGE, HE, XM1046 CARTRIDGE, HE, M1061 CARTRIDGE, WP, M50A3 CARTRIDGE, WP, M302A2 AND M302A1 CARTRIDGE, WP, M722 CARTRIDGE, WP, M722A1 CARTRIDGE, ILLUM, M83A3 CARTRIDGE, ILLUM, M721 CARTRIDGE, IR, M767 CARTRIDGE, FRPC, M769 CARTRIDGE, TP (SR), M766 (S&I BY PROP SEE DETAILS, FOOTNOTES) (REPRINTED W/BASIC INCL C1), FIRING TABLES FOR MORTAR, 60MM: M224 MORTAR, 60MM: M224A1 FIRING CARTRIDGE, HE, M720A1 CARTRIDGE, HE, M768 CARTRIDGE, HE, M720 CARTRIDGE, HE, M720A2 CARTRIDGE, HE, M768A1 CARTRIDGE, WP, M722 CARTRIDGE, WP, M722A1 CARTRIDGE, HE, M888 CARTRIDGE, HE, M49A4 CARTRIDGE, TP, M50A3 CARTRIDGE, HE, M1061 CARTRIDGE, HE, XM1046 CARTRIDGE, WP, M302A1 CARTRIDGE, WP, M302A2 CARTRIDGE, ILLUM, M721 CARTRIDGE, ILLUM, M83A3 CARTRIDGE, IR ILLUM, M767 CARTRIDGE, TP(SR), M766 CARTRIDGE, FRPC, M769 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 60-MM, M224; FIRING CARTRIDGE, HE, M888 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 60MM, M224, FIRING CARTRIDGE, HE, M888 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 60 MM, M224 FIRING CARTRIDGE, HE M488 (S&I BY PROP SEE DETAILS, FOOTNOTES), RIFLE: 75-MM, M20 (T25); FIRING CARTRIDGE, PHE, M310 AND M310A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), GUN, 76-MM, M32 ON TANKS, 75-MM GUN, M41 AND M41A1 AND GUN, 76-MM, M48 (T124E2) ON CARRIAGE, 76-MM, M29 (T66) FIRING SHOT, AP-T, M339 SHOT, TP-T, M340 SHOT, HVAPDS-T, M331A1 AND M331A2 SHOT, HVAP, T66E4 SHELL, HE, M352 SHELL, WP, M361 (T140E2) (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR, 81-MM: M29A1, M29 AND M1; FIRING CARTRIDGE, HE, M362 CARTRIDGE, HE, M43A1 AND TP, M43A1 CARTRIDGE, WP, M57 AND M57A1 CARTRIDGE, ILLUMINATING, M301A1 AND M301A2 CARTRIDGE, ILLUMINATING, M301A3 (REPRINTED W/BASIC INCL C1-7) (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR 81-MM: M29 AND M2 FIRING CARTRIDGE, HE, M43A1 WITH FUZE, PD, M525 FUZE, PD, M52A2E3 (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR: 81-MM, M29 AND M1 ON MOUNTS, MORTAR: 81-MM, M23A2, M23A1, M23, M4 AND M1; FIRING SHELL, HE: M43A1 AND M43A1B1; SHELL, TP: M43A1 AND M43A1B1 WITH FUZE, PD: M52B10; FIN, M3; CARTRIDGE, IGNITION: M8; PRIMER, PERCUSSION: M34 AND INCREMENT, PROPELLANT: M1A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR, 81-MM: M29A1 AND M29; MORTAR, 81-MM, SELF-PROPELLED: M125A1 AND M125; CARRIER, 81-MM MORTAR: TRACKED, XM755; FIRING CARTRIDGE, HE: M374A2 AND M374; CARTRIDGE, WP, M375A2 AND M375; CARTRIDGE, ILLUMINATING: M301A3; CARTRIDGE, TRAINING: M68 AND TRAINING DEVICE, M1 (REPRINTED W/BASIC INCL C1-4) (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR, 81-MM: M29A1 AND M29; FIRING CARTRIDGE, HE, M374A2 AND M374; CARTRIDGE, WP, M375A2 AND M375 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 81MM, M29 AND M1 FIRING CARTRIDGE, ILLUMINATING, M301A3 WITH FUZE, TIME, M84A1, HEIGHT OF BURST, 600 METERS (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR, 81-MM, M29A1 AND M1; FIRING CARTRIDGE, ILLUMINATING, M301A2 WITH FUZE, TIME: M84A1 HEIGHT OF BURST, 381 METERS (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR, 81-MM: M29A1 AND M29; FIRING TRAINING DEVICE, 81-MM: M1 SABOT WITH CARTRIDGE, TP, M744 (CHARGE 1); CARTRIDGE, TP, M745 (CHARGE 2); CARTRIDGE, TP, M746 (CHARGE 3), CARTRIDGE, TP, M747 (CHARGE 4) (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR, 81-MM: M29A1 AND M29 AND FIRING CARTRIDGE, HE: M374A3 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE FOR MORTAR, 81-MM: M29A1 AND M29; MORTAR, 81-MM, SELF-PROPELLED: M125A1 AND M125; CARRIER, 81-MM MORTAR: TRACKED, M755 M755 AND FIRING CARTRIDGE, HE, M374A3 (REPRINTED W/BASIC INCL C1) (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 81MM, M252, M252A1, AND M252A2 FIRING CARTRIDGE, HE, M821; CARTRIDGE, HE M889; CARTRIDGE, RP, M819; CARTRIDGE, ILLUMINATING, M853A1; CARTRIDGE, TP, M879; CARTRIDGE, TP, M879A1; CARTRIDGE, HE, M821A1; CARTRIDGE, HE, M821A2; CARTRIDGE, HE, M821A3; CARTRIDGE, HE, M821A4; CARTRIDGE, HE, M889A1; CARTRIDGE, HE, M889A2; CARTRIDGE, HE, M889A3 (PROV); CARTRIDGE, HE, M889A4; AND CARTRIDGE, IR ILLUMINATING, M816; AND MORTAR, 81MM, M29A1 AND MORTAR, 81MM, M252, M252A1, AND M252A2 FIRING CARTRIDGE, TP (SR), M880 (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR, 81-MM, M29A1, M29, AND M1; FIRING CARTRIDGE, TRAINING, M68 (S&I BY PROP SEE DETAILS, FOOTNOTES), RIFLE, 90-MM: M67 AND FIRING CARTRIDGE, HEAT, M371 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 105MM GUN, M68 AND M68A1 ON TANK, COMBAT, FULL TRACKED: 105MM GUN, M1, M60A3, M60A1, M60 AND M48A5; FIRING CARTRIDGE, APFSDS-T, M900; CARTRIDGE, APFSDS-T, M833; CARTRIDGE, APFSDS-T, M774; CARTRIDGE, APFSDS-T, M735; CARTRIDGE, APDST, M728; CARTRIDGE, APDST-T, M392A2, M392A1, AND L36A1; CARTRIDGE, HEAT-T-MP, M456A2; CARTRIDGE, HEAT-T, M456A1 AND M456; CARTRIDGE, HEP-T, M393A2 AND TP-T, M393A1; CARTRIDGE, WP-T, M416; CARTRIDGE, APERS-T, M494; CARTRIDGE, TPDS-T, M724; CARTRIDGE, TP-T, M490A1; CARTRIDGE, TP-T, M490 (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 105-H-6 FOR CARTRIDGE, HE, M444 (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 105-AS-2 FOR CARTRIDGE, HE, M444 (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 105-AS-4 FOR CARTRIDGE, HE, DPICM, M915 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR CANNON, 105MM HOWITZER, M137A1 (M137E1) AND M137 ON HOWITZER, LIGHT, TOWED, 105MM, M102 AND CANNON, 105MM HOWITZER, M20A1 ON HOWITZER, LIGHT, TOWED, 105MM, M119A1 FIRING CARTRIDGE, HE, M1 CARTRIDGE, GAS, PERSISTENT, H AND HD, M60 CARTRIDGE, GAS, NONPERSISTENT, GB, M360 CARTRIDGE, SMOKE, WP, M60, M60A1 AND M60A2 CARTRIDGE, SMOKE, HC AND COLORED, BE, M84A1 CARTRIDGE, ILLUMINATING, M314A3 CARTRIDGE, HEP-T, M327 CARTRIDGE, ANTIPERSONNEL, M546 CARTRIDGE, HEAT-T, M622 CARTRIDGE, HE, M760 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR CANNON, 105MM HOWITZER, M137 AND M137A1 ON HOWITZER, LIGHT, TOWED, 105MM, M102 AND CANNON, 105MM HOWITZER, M20A1 ON HOWITZER, LIGHT, TOWED, 105MM, M119A3 FIRING CARTRIDGE, HERA, M548 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR CANNON, 105MM HOWITZER, M20A1 ON HOWITZER, LIGHT, TOWED, 105MM, M119A1 FIRING CARTRIDGE, HERA, M913 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR CANNON, 105MM HOWITZER, M137 AND M137A1 ON HOWITZER, LIGHT, TOWED, 105MM, M102 AND CANNON, 105MM HOWITZER, M20A1 ON HOWITZER, LIGHT, TOWED, 105MM, M119A3 FIRING CARTRIDGE, HERA, M927 (S&I BY PROP SEE DETAILS, FOOTNOTES)-, CANNON, 105-MM HOWITZER: M2A2 AND M2A1 ON HOWITZER, LIGHT, TOWED: 105-MM, M101A1 AND M101 AND CANNON, 105-MM HOWITZER: M49 ON HOWITZER, LIGHT, SELF-PROPELLED, FULL-TRACKED, 105-MM: M52A1 AND M52; FIRING CARTRIDGE, HE: M1; CARTRIDGE, GAS PERSISTENT, H AND HD, M60; CARTRIDGE, GAS, NONPERSISTENT, GB, M360; CARTRIDGE, SMOKE, WP, M60; CARTRIDGE, SMOKE, BE, M84 AND M84B1 (HC AND COLORED); CARTRIDGE,SMOKE, HC, BE, M84A1 (M84E1); CARTRIDGE, ILLUMINATING, M314A3 (M314A2E1); CARTRIDGE, HEP-T, M327; CARTRIDGE, ANTIPERSONNEL, XM546 AND CARTRIDGE, HEAT-T, M622 (S&I BY PROP SEE DETAILS, FOOTNOTES), RIFLE, RECOILLESS, 106MM, M40, FIRING, SHELL, HEAT, M344 (S&I BY PROP SEE DETAILS, FOOTNOTES), GUN, 106-MM RECOILLESS RIFLE, M40A1 ON MOUNT, M79; FIRING CARTRIDGE, 106-MM: HEAT, M344 (S&I BY PROP SEE DETAILS, FOOTNOTES), RIFLE, 106-MM, M40 FIRING CARTRIDGE, HEP-T, M346 (S&I BY PROP SEE DETAILS, FOOTNOTES), GUN, 106-MM RECOILLESS RIFLE, M40A4 AND M40A2 ON MOUNT, M79; FIRING CARTRIDGE, ANTIPERSONNEL, XM581 WITH FUZE, MT, XM592E1 AND CARTRIDGE, ANTIPERSONNEL, M581 WITH FUZE, MT, M592 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 120MM GUN, M256 ON TANK, COMBAT, FULL TRACKED: 120MM GUN, M1A1 FIRING CARTRIDGE, APFSDS-T, M829 CARTRIDGE, APFSDS-T, M829A1 CARTRIDGE, APFSDS-T, M829A2 CARTRIDGE, APFSDS-T, M827 CARTRIDGE, APFSDS-T, DM13 CARTRIDGE, HEAT-MP-T, M830 CARTRIDGE, HEAT-MP-T, M830A1 CARTRIDGE, HEAT-MP-T, DM12 CARTRIDGE, TPCSDS-T, M865 CARTRIDGE, TPCSDS-T, M865 PIP CARTRIDGE, TPFSDS-T, M866 CARTRIDGE, TPFSDS-T, DM28 CARTRIDGE, HEAT-TP-T, M831 CARTRIDGE, TP-T, M831A1 CARTRIDGE, HEAT-TP-T, DM18 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 120MM: CARRIER-MOUNTED M121 MARTAR, 120MM: TOWED M120 FIRING CARTRIDGE, HE, M934 CARTRIDGE, HE, M934A1 CARTRIDGE, HE, M933 CARTRIDGE, WP, XM929 CARTRIDGE, WP, M929 CARTRIDGE, ILLUM, XM930 CARTRIDGE, IR ILLUM, XM983 CARTRIDGE, FRPC, M931 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 120MM: CARRIER-MOUNTED RMS6L (BCT STRYKER) FIRING CARTRIDGE, HE, M934 CARTRIDGE, HE, M933 CARTRIDGE, HE, M934A1 CARTRIDGE, WP, XM929 CARTRIDGE, WP, M929 CARTRIDGE, ILLUM, M930 CARTRIDGE, ILLUM, M930E1 CARTRIDGE, IR ILLUM, M983 CARTRIDGE, FRPC, M931 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 120MM: TOWED M327 FIRING PROJECTILES, HE, M1101 PROJECTILES, SMOKE, WP, M1103 PROJECTILES, ILLUMINATING, M1105 PROJECTILES, PRACTICE, M1107 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 152-MM GUN LAUNCHER: M81E1 AND M81 ON ARMORED RECONNAISSANCE/AIRBORNE ASSAULT VEHICLE: FULL TRACKED, 152-MM, M551; FIRING CARTRIDGE, 152-MM: HEAT-MPT, XM409E5; CARTRIDGE, 152-MM: TP-T, XM411E4 AND XM411E3; CARTRIDGE, 152-MM: HE-T, XM657E2; CARTRIDGE, 152-MM: CANISTER, XM625 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 152-MM GUN-LAUNCHER: M162 ON TANK, COMBAT, FULL-TRACKED: 152-MM, M60A2; FIRING CARTRIDGE, 152-MM: HEAT-T-MP, M409; CARTRIDGES, 152-MM: TP-T, M411A1 AND M411 AND CARTRIDGE, 152-MM CANISTER, M625 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AR-2 FOR PROJECTILE, SMOKE, M825 AND PROJECTILE, SMOKE, M825A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AK-2 FOR PROJECTILE, HE, M483A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AM-2 FOR PROJECTILES, HE, M449A1 (M449E2) PROJECTILES, HE, M449 (T379) PROJECTILES, HE, M449E1 (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 155-AN-1 FOR PROJECTILE, HE, M483A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AN-2 FOR PROJECTILES, HE, M483A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 144-ADD-K-1 FOR HOWITZER, ORGANIZATIONAL, MEDIUM, SELF-PROPELLED, 155-MM, M109, M109A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AN-1 FOR PROJECTILE, HE, M692 AND PROJECTILE, HE, M731 (REPRINTED W/BASIC INCL C1-2) (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AN-2 FOR PROJECTILES, HE, M692 PROJECTILES, HE, M731 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AK-2 FOR PROJECTILE, HE, M692; PROJECTILE, HE, M731 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AN-1 FOR PROJECTILE, ANTITANK, M718 AND M741 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AN-2 FOR PROJECTILES, ANTITANK, M718 AND M718A1 PROJECTILES, ANTITANK, M741 AND M741A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AK-2 FOR PROJECTILE, ANTITANK, M718 AND M741 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AN-2 FOR PROJECTILES, SMOKE, M825 AND PROJECTILES, SMOKE, M825A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AM-2 FOR PROJECTILE, HE, M483A1 USING REGISTRATION DATA FOR PROJECTILE, HE, M107 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AM-2 FOR PROJECTILES, HE, M483A1 USING REGISTRATION DATA FOR PROJECTILES, HE, M107 (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 155-AM-3 FOR PROJECTILE, HE, M483A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AM-2 FOR PROJECTILES, SMOKE, M825 AND PROJECTILES, SMOKE, M825A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 155-AM-3 FOR PROJECTILE, SMOKE, M825 AND PROJECTILE, SMOKE, M825A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), PROVISIONAL AIMING DATA ADDENDUM TO FT 155-ADD-AU-PAD FOR PROJECTILE, HE, M864 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 155-MM HOWITZER, M126A1 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155-MM, M109 AND CANNON, 150MM HOWITZER, M1A2 ON HOWITZER, MEDIUM, TOWED, 150MM, M114A2 FIRING PROJECTILE, HE, M483A1 (REPRINTED W/BASIC INCL C1) (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 155MM HOWITZER, M185 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A1 HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A1B HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A2 AND HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A3 AND CANNON, 155MM, HOWITZER, M199 ON HOWITZER, MEDIUM, TOWED, 155MM, M198 FIRING PROJECTILE, HE, M107 PROJECTILE, SMOKE, WP, M110, PROJECTILE, SMOKE, BE, M116, M116B1 (HC AND COLORED) PROJECTILE, SMOKE, BE, M116A1, (HC) PROJECTILE, GAS, PERSISTENT, H AND HD, M110 PROJECTILE, GAS, NONPERSISTENT, GB, M121A1 PROJECTILE, GAS PERSISTENT, VX, M121A1 PROJECTILE, ILLUMINATING, M485A2 AND M485A1 (REPRINTED W/BASIC INCL C1) (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, HE, M107; PROJECTILE, SMOKE, WP, M110, M110A1 AND M110A2; PROJECTILE, SMOKE, BE, M116A1 (HC); PROJECTILE, ILLUMINATING, M485A2 AND M485A1; AND PROJECTILE, IR ILLUMINATING, M1066 (S&I BY PROPONENT, SEE FOOTNOTES. The aluminum tail assembly has six integral fins equally spaced around the rear, which stabilize the round in flight. LHMBC. This section implements STANAG 2321 and QSTAG 900 (Edition 1). (3) The M84A1 fuze is a single-purpose, tungsten-ring, mechanical-time fuze used with the 81-mm M301A3 illumination cartridge. The ammunition that can be fired by the 81-mm mortar, M252, is identified and described herein. The equipment is placed out the same as for the gunner's examination (Chapter 9). h. Where the ground is uneven and there is no level surface for the bipod, the gunner can adjust the plain leg. It is painted white with black markings. 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. The mortar is within two turns of center of traverse. Attached to the arm is the cross-leveling mechanism, which is attached to the clamp assembly at its upper end. The assistant gunner checks the bipod and ensures that--. 81-mm MORTAR, M252 The 81-mm mortar, M252, delivers timely, accurate fires to meet the . (1) The M935 fuze has two function settings: impact and delay. M3A1 Baseplate 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). (2) Burn all dead grass or brush within 30 meters around the burning place. The M889 HE cartridge (M252 onlyXUS Marine Corps) is of the same construction as the M821 cartridge in every detail except the fuze, which is the M935. The M252 is highly accurate up to ranges of 4500m to 5700m depending on the Once set to act as an impact fuze, the mechanism cannot be reset for PROX. 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 squad leader stands behind the mortar where he can command and control his squad. d. The gunner removes the sight from its case, mounts it on the mortar, and sets a deflection of 3200 mils and an elevation of 1100 mils. Overhead interference can be branches of trees or roofs of buildings. The squad leader notifies the FDC of the minimum mask clearance elevation. g. The barrel clamps can be moved along the barrel to counter large changes in elevation. Cartridges assembled with the M532 fuze must be fired above charge 0. The M821 HE cartridge (M252 only) is a British-made cartridge fitted with the US M734 multioption fuze. a. The baseplate (Figure 4-5) is of one-piece construction, and supports and aligns the mortar for firing. The barrel clamp, which consists of an upper and lower clamp, is situated at the top. 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. Fired . As a longstanding partner of armed forces around the globe, Rheinmetall supplies a wide array of mortar systems and ammunition. 0.30, BROWNING, M1917A1; GUN, MACHINE: CAL. The components of the mortar consist of a cannon, mount, and baseplate. The mortar is then re-laid on the aiming posts using the traversing crank. The gunner places the announced deflection on the sight (without disturbing the lay of the weapon) and looks through the sightunit. b. Home; Swifty. It should be destroyed in accordance with standard procedures. (4) The bipod locking latch is locked, securing the barrel clamps. (e) If the mask is not regular throughout the sector of fire, the gunner determines the minimum mask clearance as described above. (7) When opening an ammunition box, the ammunition bearer ensures the box is horizontal to the ground, not nose- or fin-end up.