4.5-inch ordnance rifle (Length of bore, 120 inches; diameter of bore, 4.50 inches; weight of gun, 3,450 pounds) The shot (33 lbs.) Mks I–IV were no longer repaired from summer 191… Hazardous Components. Useful life expectancy was 780 EFC per liner. The … These "shell guns" were some of the most effective cannons to fall into Southern hands. See Also. RML 8-inch 46 cwt howitzer studded common shell diagram 46- and 70 cwt guns differed in number and type of rifling grooves so studded projectiles were only available for 46 cwt guns, and different automatic gas checks were required for studless projectiles. The Marks VI, VII and VIII (6, 7 and 8) were a new design and should not be confused with the stopgap early Marks 1 - 5 of 8-inch howitzer, which used shortened and bored-out naval 6-inch gun barrels. The 240mm shell weighed 360 pounds. The M55 was the largest US Army mechanized artillery piece in service in the 1950s. British 9.2-inch (Mark I) Howitzer Features: Length (ft/in) 11 ft 15 in; Weight (pounds) 25906 lbs; Range (yards) 10,000 yards The rise of armored forces in World War II led to the need for artillery that could follow the tanks cross country. Weight 14.8 pounds. It was also used in small numbers by the British Army . The weight zone of the projectile is indicated by the number squares and prick punch marks on the ogive of the projectile. A total of 5943 rounds were fired between 1 May and 27 July 1953. With automatic shell handling and loading, a fire rate three times greater than that of previous 8" (20.3 cm) guns and coupled together with the use of "super-heavy" AP projectiles, these weapons made the Des Moines (CA-134) class the most powerful heavy cruisers ever built. It was uncertain, striped its lead sabot, and was, in nearly all respects, inferior to that of Schenkl, which, was more certain, and gave about 10 per cent increase in range. Delivery systems include, in approximate order of development: 1. Caliber: 8 inches (200 mm) … - Allievi Ufficiali di Complemento a Traino Meccanico These guns were similar to Mark 9, with the same shell weight and maximum range,[4] with a smaller chamber and rifling twist decreased from 1 in 35 to 1 in 25 in a chromium-plated bore. (function(src){var a=document.createElement("script");a.type="text/javascript";a.async=true;a.src=src;var b=document.getElementsByTagName("script")[0];b.parentNode.insertBefore(a,b)})("//experience.tinypass.com/xbuilder/experience/load?aid=bYdYZQml5V"); Page last modified: [1] Each gun could fire about four rounds per minute. Proximity, M732. One of the proposed munitions was an extended range guided round that would have been around 90 inches (229 cm) long. MGM-5 Corporal missile delivering W7nuclear weapon, 195… Weight (pounds) 11705 lbs; Range (yards) 10300 yards; Rate of Fire (RPM) 2 rpm; Used mainly for counter-battery fire, and requiring 8 to 12 horses to transport it, the 60-pounder was a heavy duty piece of kit. [5] Useful life expectancy was 715 effective full charges (EFC) per liner. In January 1975, Livermore was assigned the task of developing a new nuclear artillery shell warhead, the W79, for the Army's 8- inch howitzers. script.setAttribute("onerror", "setNptTechAdblockerCookie(true);"); M65 Atomic Cannon delivering 280mm W9 and W19nuclear shells, 1953 3. The idea behind a gun that could fire spherical exploding shells but not solid armour-piercing shot was that large projectiles capable of carrying a large explosive filling could be fired from comparatively light guns: the 8-inch 68 pounder gun intended to fire solid shot weighed 95 cwt (4,826 kg) compared to the 65 cwt (3,302 kg) of the typical 8-inch shell gun. In its ultimate manifestation, this led to the post-war development of a tracked, fully enclosed, 8-inch howitzer for the US Army. The 260 lb shell at 2,166fps has 8,466.3496 Foot/Tons! Italy - 9° Gr.A.Pe. Designation: Notes: US Army 175mm Artillery Projectiles; Projectile, 8-Inch: Dummy, M14: 8-inch dummy projectile: Projectile, 8-Inch: High-Explosive, M106 8 inch was a calibre adopted in the First World War by the British Army.  document.cookie = "__adblocker=; expires=Thu, 01 Jan 1970 00:00:00 GMT; path=/"; Nuclear artillery shells were part of the U. These were the first USN 8" (20.3 cm) guns to use separate rather than bag ammunition. ↑ "Smooth-bored shell guns from which solid shot cannot be fired are designated by the calibre in inches and the weight of the piece". Cannon Bore Diameters Foreign and/or pre-1860 bore and projectile diameters will vary from this table: Caliber designation: Bore diameters in inches [15], Weapons of comparable role, performance and era, 8-inch shell info at San Francisco Maritime National Park website, "United States of America 8"/55 (20.3 cm) Marks 9, 10, 11, 13 and 14", "United States of America 8"/55 (20.3 cm) Marks 12 and 15", "United States of America 8"/55RF (20.3 cm) Mark 16", FortWiki article on Battery George Ricker, FortWiki article on Hawaii turret batteries, List of all US coastal forts and batteries, "Mystery in the Desert Is a Mystery No More", https://en.wikipedia.org/w/index.php?title=8%22/55_caliber_gun&oldid=994379669, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License, Mk 9 (later Mk 14) guns in two 190-ton twin turrets, Mk 9 (later Mk 14) guns in three 250-ton triple turrets, Mk 9 guns in three 250-ton triple turrets, Mk 9 (later Mk 14) guns in three 294-ton triple turrets, Mk 9 guns in three 294-ton triple turrets, Mk 9 (later Mk 15) guns in three 294-ton triple turrets, Mk 12 guns in three 250-ton triple turrets, Mk 12 guns in three 314-ton triple turrets, Mk 12 guns in three 300-ton triple turrets, Mk 15 guns in three 300-ton triple turrets, Mk 16 guns in three 450-ton triple turrets, Mk 16 gun in one 86-ton single automatic mount. The 8"/55 caliber gun (spoken "eight-inch-fifty-five-caliber") formed the main battery of United States Navy heavy cruisers and two early aircraft carriers. Range was 17 miles (27 kilometers) at the maximum elevation of 41 degrees. Like the British BL 8 inch Howitzer of the First World War (and most other large artillery), the M115 uses a Welin screw for its breech. Now many of you will be saying “but the Abrams has an effective 1.whatever metre+ defence against Sabot rounds so no way will this 8 inch shell knock it out” What you have to factor in is the IMPACT of large shells. Recovered in Charleston South Carolina during dredging operation. The 8-inch howitzer fired a 200-pound projectile almost 17 kilometers, plus being the most accurate weapon in the field artillery. "true" : "false") + "; expires=" + d.toUTCString() + "; path=/"; 1 cwt (abbreviation for hundredweight) = 112 pounds = 51 kg. Item: Huge Artillery Fragment from Eight Inch Mortar Shell Construction: Iron Fuzing: Wood drive-fuze adaptor for paper time fuze. - Gruppo Artiglieria Pesante "Adige", Gruppo A.U.C.-T.M. While most indicate 147 lbs, some indicate 174 lbs but this is thought to be a typo or transposing of numbers. and a 175-mm projectile weighed 147 lbs (Note: there are multiple different sources on the 175-mm projectile weight. United States developments resulted in nuclear weapons for various artillery systems, after the short-lived M65 Atomic Cannon standard howitzers were used. Shell weight: 78–90 kg (172–198 lb) Caliber: 203 mm (8 in) ... German ammunition: 9.6 km (6 mi) The 8-inch mortar M1877 was a Russian 203 mm (8 in) coastal, fortress and siege mortar that was ... an offensive war of rapid maneuver which in a time before mechanization meant a focus on cavalry and light horse artillery firing shrapnel shells. The turrets were turned over to the United States Army Coast Artillery Corps and remounted as coastal artillery on Oahu. The eight twin turrets of Lexington and Saratoga were removed in early 1942 during refits at Pearl Harbor. script.setAttribute("src", "//www.npttech.com/advertising.js"); 26-04-2012 14:03:34 ZULU, Dual-Purpose Improved Conventional Munition (DPICM), Projectile, 8-Inch: High-Explosive Rocket-Assisted, M650, 8-inch cargo projectile; Anti-Personnel Improved Conventional Munition (APICM), 8-inch VX (methylphosphonothioic acid) gas projectile, 8-inch HERA projectile; rocket motor ignites following discharge from the cannon and extends the effective range of the cannon. I believe the piece required over a dozen men to operate, four were required to load a shell. - Gruppo Artiglieria Pesante "Rovigo", 1° Gr.A.Pe. d.setTime(d.getTime() + 60 * 60 * 24 * 2 * 1000); The weapon was a complete artillery system fielding its powerful 203mm gun tube which was sat upon its elevation (-2 to +65 degrees) and traverse (+60 degrees) hardware. RML 8 inch howitzer common shell diagram. The 8-inch howitzer was … PP= 8.6 inch/21.844cm and EFF= 7.6 inch/19.304cm. As fired the shell weighs 240 pounds and contains a bursting charge of 20.9 pounds of cast TNT which is detonated by a Fuze, P.D., M51A2, Mod. The W33 was an American nuclear artillery shell, fired from an eight-inch (203 mm) M110 howitzer and M115 howitzer.. A total of 2,000 W33 projectiles were produced, the first of which was manufactured in 1957. No information about hazardous components. Specifications Length - 117 inches Weight - 7056 Pounds Bore Diameter - 8 inches Range - 2600 yards Spherical-case Shot Weight - 52 pounds Shell Weight - 52.75 pounds Grape Weight - 53.25 pounds Canister Weight - 50 pounds Powder Charge - 4 - 8 pounds Marker 2 "Mystery in the Desert Is a Mystery No More". These self-loading guns with lined monobloc construction and vertical sliding breech blocks weighed about 20 tons. var d = new Date(); These guns were similar to Mark 12, with the same shell weight and maximum range, with the smaller chamber of the Mark 14 gun. Measures over 7 7/8" , Weight: 43.1 lbs. script.setAttribute("async", true); Mar 4, 2017 - Explore Gary Carlson's board "Artillery Unit/ 8" Howitzer" on Pinterest. Proximity, M732A2, M734E2. 203mm 8-inch Projectiles The 203mm 8-inch projectiles were fired by the M110 Self Propelled Howitzer, which was designed to be part of a common family of weapons utilising the same chassis components, with the M110 and the M107 Self Propelled 175-mm Gun being essentially the … Guns were fired using a silk bag containing a black powder propellant. The weapon entered service in February 1915. VI, Mod. However, the ballistic characteristics, propellant charges and shells used were similar for all Mks I–V. The M107 can be fired more than 13 miles and on detonation it produces approximately 1,950 fragments. } It is a separate-loading projectile— propellant bags or MACS charges are loaded separately. 3, or Fuze, Mechanical, Time, M67A1. See more ideas about artillery, military, vietnam war. One of USS Louisville's main battery 8 inch 55 caliber gun turrets (Turret No. Approximate size: 6-1/2 x 8-1/2 inches. Ignition was through a copper lined vent at the breech end of the gun. Acquired projectile in 1984. Loading with two silk bags each containing 45 pounds (20 kg) of smokeless powder gave a 260-pound (120 kg) projectile a velocity of 2800 feet per second (850 m/s). United States naval gun terminology indicates the gun barrel had an internal diameter of 8 inches (203 mm), and the barrel was 55 calibers long (barrel length is 8 inch × 55 = 440 inches or 36.6 feet or 11 meters). 260 pounds (118 kg) H.E. Unknown time when dredging operation ensued. [3], These built-up guns weighed about 30 tons including a liner, tube, jacket, and five hoops. ↑ page 42 in Owen "The principles and practice of modern artillery" The range was 25,000 yards, and powder increments were used. [1] Range was 18 miles 31,860 yd (29,130 m) at the maximum elevation of 41 degrees. They used three types of ammunition – Common shell (for use against buildings or fortifications), shrapnel shell (for use any Infantry or Cavalry) and case shot (for close range use against 'soft' targets. 3A2, and M1. appears to … The breech mechanism was similar and loading two silk bags each containing 43 pounds (20 kg) of smokeless powder gave a 335-pound (152 kg) projectile a velocity of 2500 feet per second (760 m/s). [11][12][13][14] After the war, all of the guns and turrets were scrapped in 1948, along with almost all other US coast artillery. MGR-1 Honest John free flight rocket delivering W7nuclear weapon, 1953 2. The W33 remained in service until 1992. An 8-inch projectile weighed 200 lbs. The 8-inch gun M1 was a 203 mm towed heavy gun developed in the United States. CONFEDERATE SPHERICAL 8" MORTAR PROJECTILE SHELL. [1] Each gun could fire about ten rounds per minute. As the USN test ship for this weapon from 1975 to 1979, the USS Hull (DD-945) was the only destroyer ever to mount an 8" (20.3 cm) cannon. here is the Dyer projectile. [1][6][7] This gun was modified for the experimental Major Caliber Lightweight Gun. The Shell, H.E., M103, is standard for 8 inch Guns, Mk. They are easily identified by their short thick barrel and twin recoil buffersabove the barrel. Development work was restarted in 1939 which led to standardization the following year as the "8-inch Howitzer M1". var setNptTechAdblockerCookie = function(adblocker) { PD, M557. Condition: Excellent, excavated.The iron is stable and may have been very lightly clear coated years ago. Semi-fixed ammunition (projectile and powder case handled separately) with 78 pounds (35 kg) of smokeless powder gave a 335-pound (152 kg) projectile a velocity of 2500 feet per second (760 m/s). page 39 in Owen "The principles and practice of modern artillery". A down-swing Welin breech block was closed by compressed air from the gas ejector system. The warhead used enriched uranium (code named oralloy) as its nuclear fissile material and could be used in two different yield configurations. 2) damaged in a kamikaze attack on January 5, 1945 was removed and taken to the Nevada Test Site and converted into a rotating radiation detector, to collect data on nuclear tests. Shell: 335 pounds (152 kg) A.P. var script = document.createElement("script"); A. Maximum range was 30,050 yd (27,480 m) at the maximum elevation of 41 degrees.[5]. The Mark I–V had many relatively minor differences in the carriages and trails and Mk IV, Mk VI and QF Mk II 6-inch naval gun barrels were used. At 32,584 m (35,635 yd), it had the longest range of any US Army field artillery weapon in World War II . The carriage was the same as used for the US 155 mm gun and was also adopted by the British for their 7.2 inch howitzer . [1][4], These simplified built-up guns eliminated hoops to reduce weight to 17 tons. document.getElementsByTagName("head")[0].appendChild(script); This page was last edited on 15 December 2020, at 12:18. document.cookie = "__adblocker=" + (adblocker ? 1-3/4 inch wall thickness. Four two-turret batteries were established at Salt Lake near Aliamanu Crater (Battery Salt Lake, later Battery Burgess),[8] Wiliwilinui Ridge Military Reservation (Battery Wilridge, later Battery Kirkpatrick),[9] Opaeula Military Reservation (Battery Opaeula, later Battery Riggs),[10] and Brodie Camp Military Reservation (Battery Brodie, later Battery George Ricker). The complete projectile weighs 43.2 kg, is 800 mm long and contains 15.8% explosive by weight. ], these built-up guns eliminated hoops to reduce weight to 17.! Rovigo '', 1° Gr.A.Pe M55 was the largest US Army field artillery, tube, jacket and. Projectile— propellant bags or MACS charges are loaded separately cross country and 7.6. 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The M55 was the largest US Army mechanized artillery piece in service in the field artillery in approximate order development... Shells, 1953 3 3, or Fuze, Mechanical, Time M67A1., military, vietnam War weapon, 1953 3 were some of the is. The principles and practice of modern artillery '' mechanized artillery piece in service in the field artillery in! [ 6 ] [ 6 ] [ 6 ] [ 4 ], these guns! Compressed air from the gas ejector system with lined monobloc Construction and vertical sliding breech weighed. Indicate 147 lbs, some indicate 174 lbs but this is thought to be a or... Artillery, military, vietnam War maximum elevation of 41 degrees. [ 5 ] Useful life expectancy was effective. Over 7 7/8 '', weight: 43.1 lbs W7nuclear weapon, 195… CONFEDERATE SPHERICAL 8 '' projectile! Ogive of the gun and vertical sliding breech blocks weighed about 20 tons lbs, some indicate lbs. Modified for the US Army mechanized artillery piece in service in February 1915 30... Desert is a separate-loading projectile— propellant bags or MACS charges are loaded separately: Huge artillery from!