ANTIAIRCRAFT GUNS Name Gun 90mm, M1, M1A1, M1A2 and M1A3; Mount, AA, 90mm, M1A2 also Mount, Gun, 90mm, AA, M1A1. Weight (Complete Weapon) Gross weight 19,000 lbs Automatic-No, Semi-automatic Type of Fire-Ground to air; secondary role (ground to ground) Projectiles (Kind & Size) HE M71 Shell and WP M313 Shell 90mm Rate of fire-22 rounds per minute Maximum Range HE (limited by 30 sec MT fuze) HVAP-T .... .12,000 yd ..19,560 yd ..21,400 yd .15,700 yd Type of Targets-Aircraft at speeds up to 400 mph and altitudes up to 30,000 feet Means of Transportation-Towed by prime mover (10 ton, 6 x 6 truck, M125) Name-Gun, Antiaircraft, 75mm Weapon System, Towed, M51 with components (Skysweeper), Cannon, 75mm Gun, M35. Weight Gross weight: Approximately 19,200 lbs with fire control (complete system) Automatic-Yes Type of Fire-Ground to air; secondary role (ground to ground) Projectiles (Kind & Size)— Cartridge, HE, 75mm (T50E2) M334 Cartridge, Drill, 75mm, T146 (Series) Cartridge, AP-T, 75mm, T149E1 Rate of Fire-Approximately 45 rounds per minute Maximum Range-20,000 ft Type of Targets-Airborne targets flying at speeds up to 1,350 ft/sec and up to an altitude of 8,500 yds Means of Transportation-The gun is mounted on a combination chassis and gun mount, and moved by means of two removable two-wheeled suspensions (bogie). The suspensions are shock absorber stabilized to permit towing by a prime mover at speeds practicable with the terrain. Prime mover Truck Cargo 10-ton 6 x 6, M125. Name-Gun, 90mm, M2A2; Mount, AA, 90mm Weight-Gross weight 34,170 lbs Type of Fire Ground to air; secondary role (ground to ground) Projectiles (Kind & Size)-All 90mm- Armor-Piercing Capped Projectile M82 Inert-loading Practice Shell M71 Rate of Fire-23 to 28 rounds per minute HE (ltd. by 30 sec MT fuze) ..12,000 yds HE (with PD fuze) smoke .....19,560 yds 21,400 yds 15,700 yds APC-T HVAP-T Type of Targets Aircraft at speeds up to 400 mph and altitude up to 30,000 feet Means of Transportation-Towed by prime mover (10-ton 6 x 6 truck, M125) Name Gun, 120mm, M1A3; Mount, AA, Type of Fire-Ground to air; secondary role Rate of Fire-10 rounds per minute Horizontal .15,800 yds (limited by 30 sec fuze) .28,250 yds (45° elevation when not limited by fuze) Type of Targets-Aircraft at speeds up to 400 mph and altitudes up to 40,000 feet. Means of Transportation-Towed by prime mover 38-ton high speed tractor M6 (all terrain); 10-ton 6 x 6 truck, M125 (highway only). Weight-4300 lbs approximately Shell, HE-T, 40mm, MK2, Assembly 3 Type of Targets-Aerial and Ground Means of Transportation-Towed by 22-Ton 6 x 6 Truck or in an emergency by any suitable vehicle with a pintle tow hook. Name Carriage, AA, 40mm, M2A3 with Gun, Shell, HE-T, 40mm, MK2, Assembly 3 Maximum Range-5,200 yards (limited by SD tracer) Type of Targets-Aerial and Ground Means of Transportation-Towed by 21⁄2-ton 6 x 6 cargo truck or in an emergency by any suitable vehicle with a pintle tow hook. Automatic-Yes, and/or semi-automatic Type of Fire-Primary role: ground to air; secondary role: ground to ground Projectiles (Kind & Size)- Shell, HE-T, 40mm, MK2, Assembly 3 Rate of Fire-120 rpm per gun, total 240 rpm Maximum Range-5200 yards (limited by SD tracer) Type of Targets-Aerial and Ground Means of transportation-Self-propelled Name Mount, Gun, 40mm, M3 (Deck Shell, HE-T, 40mm, MK2, Assembly 3 Maximum Range-5,200 yards (Limited by Type of Targets-Aerial and Ground 762MM, 762mm 5860 lb 327 inches 104 inches Solid Double Base .Self-Propelled .5-ton, 6x6 Truck .33,750 lb 389 inches .114 inches .105 inches ...15 ft .6° to 60° .15° R&L 10° R&L PRODUCTION OF MAJOR ORDNANCE ITEMS, WORLD WAR II The enormous demands for weapons and ammunition made by modern war are illustrated by the following table, which shows the principal items of Ordnance Corps procurement for World War II Rifles, pistols, carbines, revolvers, submachineguns Aircraft guns, including machineguns Antiaircraft guns, including machineguns 17,444,856 965,365 635,128 1,791,343 129,473 63,181 27,082 116,114 105,054 2,189 88,410 2,941,869 328,669,000 423,409,000 85,646,000 95,690,000 18,296,000 41,788,593,000 36,098,000 a Includes vehicles procured by the Quartermaster Corps before 1 September 1942, when procurement responsibility for transport vehicles passed to the Ordnance Corps. b Some bomb clusters contained as many as 24 small bombs. The above tabulation also illustrates the rapid progress in the development of new weapons, since it does not include various items which would be in demand today in case of a major war, such as guided missiles and atomic munitions. |