Knowledge (XXG)

M247 Sergeant York

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December 1984 to May 1985 turned up a continued variety of problems, failing 22 of 163 contract requirements, and 22 serious failures in operational readiness. Contrary to the Army's earlier reports, OT&E Director Jack Krings said the tests showed, "the SGT YORK was not operationally effective in adequately protecting friendly forces during simulated combat, even though its inherent capabilities provided improvement over the current Vulcan gun system. The SGT YORK was not operationally suitable because of its low availability during the tests." They measured the availability of the system at 33%, as opposed to the required 90%.
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jumped for cover. Technicians worked on the problem, and the system was restarted. This time it started shooting toward the target, but fired into the ground 300 metres (980 ft) in front of the tank. In spite of several attempts to get it working properly, the vehicle never successfully engaged the sample targets. A Ford manager claimed that the problems were due to the vehicle being washed for the demonstration and fouling the electronics. In a report on the test, Easterbrook jokingly wondered if it ever rained in central Europe.
696:. Like the General Dynamics entry, it also mounted a complete optical sighting and ranging system. The radar was a modified AN/APG-68 with an AN/APG-66 transmitter. Some critics claim that Ford's use of the 40 mm Bofors appears to have been a business decision, not a technical one. While the 35 mm round was already a widely accepted NATO standard and was technically well respected, Ford had a marketing agreement with 51: 672:' entry also mounted twin Oerlikon KDA cannons, but mounted them side by side in a new aluminum turret, as opposed to either side of the turret as in the Gepard. They could be fired in either the automatic or semiautomatic mode, and their combined rate of fire was 1,100 rounds per minute from a 600-round magazine. The radar and fire control systems were derived from their 755:(ECCM) suite could be defeated by only minor jamming. The used guns taken from U.S. Army stock were in twisted condition due to careless warehousing. Perhaps the most surprising problem was that the 30-year-old M48 chassis with the new 20-ton turret meant the vehicle had trouble keeping pace with the newer M1 and M2, the vehicles it was meant to protect. 487: 567: 604: 775:
been able to operate in a degraded manner a further 2% of the time and have had an 8% inoperable rate." He later stated that the "gun still had problems with software and electronic countermeasures, but my sensing was that it was certainly no worse than many weapon systems at this period in their gestation".
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In February 1984 the Defense Department sent a "cure-notice" censuring Ford Aerospace for numerous "totally unacceptable" delays in the program. In March 1984 the Army took delivery, six months late, of the first production model for testing. One of the early models was reported to have locked onto a
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After the 29-month Phase One trial, Ford's entry was selected as the winner of the DIVADs contest on 7 May 1981, and given a fixed-price $ 6.97 billion development and initial production contract for deliveries at various rates. The system was officially named M247 Sergeant York when the contract was
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cannon, the M113 chassis, and an all-optical fire control system with a simple lead-computing gunsight. Suitable for "snap shots" against nearby targets, the VADS system was equipped only with a small ranging radar for the gunsight, its firing range being too small to justify a larger tracking radar.
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On 27 August 1985, Weinberger killed the project after about 50 vehicles had been produced. He said, "the tests demonstrated that while there are marginal improvements that can be made in the York gun, they are not worth the additional cost-so we will not invest any more funds in the system." Noting
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Nevertheless, the program's manager within the Army was cautiously positive. Major General Maloney said, "The DIVAD battery-eight systems plus one spare-activated 1 November 1984, at Fort Bliss to prepare for tests, has been demonstrating 90% reliability for full systems capability. The systems have
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in June 1980. On schedule, both companies delivered their prototypes to the North McGregor Test Facility and head-to-head testing began. The shoot-off was delayed for two months "because the prototypes which arrived at Fort Bliss test range were too technically immature." In the DT/OT II test series
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However, the Bofors 40 mm L/70 cannon also had worldwide popularity and had become NATO standard back in the mid-1950s. In addition, FACC had developed a proximity-sensing round for the 40 mm, which increased probability of a kill, and the shell carried either a greater explosive charge or
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Immediately the lobbying began. Ford had a marketing agreement with ... Bofors, a maker of 40-mm but not 35-mm cannons; while Ford could have switched to a 35-mm weapon for DIVAD, the potential profits from a 40-mm weapon were higher. Department of Defense lawyers, the Army pleading to Congress, had
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tank chassis, provided by the Army, which were held in large quantities in surplus depots. DIVAD called for the gun to acquire a target and start firing within five seconds (later extended to eight) of it becoming visible or coming into its 3,000 m range, and had to have a 50% chance of hitting
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ordered a $ 54 million series of battlefield-condition tests. Congress authorized production money to keep the program alive through a test-fix-test cycle but with a caveat; the funds would be released only if Weinberger certified that the gun "meets or exceeds the performance specifications of its
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fire on high-angle targets, the barrels projected into the radar's line of sight and further confused the system. Additionally, the reaction time was far too slow; against hovering helicopters it was 10 to 11 seconds, but against high-speed targets it was from 11 to 19, far too long to take a shot.
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Ford's prototype vehicle started demonstrating problems almost immediately. The main concerns had to do with the tracking radar, which demonstrated considerable problems with ground clutter. In testing, it was unable to distinguish between helicopters and trees. When the guns were pointed upward to
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The Vulcan could react quickly enough to the fleeting targets, but its 20 mm gun had an effective range of only about 1,200 metres (1,300 yd), far shorter than the 3,000 to 5,000 metres (3,300 to 5,500 yd) range of the 9K114. While the Chaparral had enough range to engage the "Hind",
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or radio-command missiles meant the total engagement time was kept to a minimum, as there was little or no "lock-on" time required; the operator simply fired as soon as they were clear of the terrain, and then adjusted the missile's flight path onto the target while it flew. Against these aircraft,
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chassis, along with detection and tracking radars. Mauler featured a completely automatic fire control system, with the operators simply selecting targets and pressing "OK". It would be able to respond to low-flying high-speed targets at any angle out to a range of about five miles. However, Mauler
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cannons, twin-mounted in the center of the turret in a fashion similar to the General Dynamics entry. The relatively large and boxy turret also mounted separate long-range search and short-range tracking radars on top. The radars were mounted on booms to give them a clear view of the sky, and both
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and holding it throughout a conflict. In keeping with this, the Army had previously placed relatively low priority on anti-aircraft weapons. This gave them time to mature through testing and shakedowns. In the case of DIVADs the threat was considered so serious and rapidly developing that the Army
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The OT&E concluded that the gun could perform the mission as originally specified, but the tests also showed that the system had considerable reliability problems, many as the result of trying to adapt a radar system developed for aircraft to the ground role. Initial production tests run from
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by having it find a man standing alone in the middle of an empty parking lot, covered with steaks. The system now tracked the drone, and after firing a lengthy burst of shells the drone was knocked off target. As it flew out of control, the range safety officer had it destroyed by remote control.
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In spite of the bad press and development problems, the Army continued to press for the system's deployment as they had no other system in the pipeline to replace it. To add to the problems, another generation of Soviet helicopter and missile designs was pushing their envelope out to 6,000 metres
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In February 1982 the prototype was demonstrated for a group of US and British officers at Fort Bliss, along with members of Congress and other VIPs. When the computer was activated, it immediately started aiming the guns at the review stands, causing several minor injuries as members of the group
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For all of these reasons, the Army developed the "Advanced Radar-directed Gun Air Defense System" (ARGADS) requirement for a new weapon system combining the reaction speed of the Vulcan with the range of the Chaparral, and placing them on a chassis that could keep up with the new tanks in combat.
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missile with a more heavily modified version of the M113 chassis. The Chaparral's AIM-9D missiles were capable of tail-chase launches only, but offered ranges up to five miles (8.0 km). Also using an all-optical firing system, the Chaparral nevertheless required the operator to "settle" the
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Colonel Russell Parker testified before the Senate Armed Services Committee in March 1977 that "We expect this somewhat unorthodox approach to permit a much reduced development time, thus resulting in an earliest fielding date, albeit with higher but acceptable risks... the manufacturer will be
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The RAM-D (reliability, availability, maintainability and durability) tests ran from November 1981 to February 1982, demonstrating a wide range of operation concerns. The turret proved to have too slow a traverse to track fast moving targets, and had serious problems operating in cold weather,
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its lengthy lock-on period meant the Hind would have hit its target and hidden behind terrain again before the Sidewinder would reach it. Additionally, the older Sidewinder missiles used on the Chaparral homed in on exhaust, and had limited capability against helicopters faced head-on.
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advised that specifying the caliber ... would be 'anti-competitive' and could lead to lawsuits—'the most ludicrous excuse I've ever heard' a high-ranking Pentagon official... When the final DIVAD requirements were issued they called for a gun 'in the 30-mm to 40-mm range'.
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proved to be beyond the state-of-the-art and ran into intractable problems during development. Realizing it was not going to enter service any time soon, it was downgraded to a technology demonstration program in 1963, and eventually canceled outright in 1965.
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The results were abysmal. When the gun proved unable to hit drones moving even in a straight line, the tests were relaxed to hovering targets. The radar proved unable to lock even to this target, as the return was too small. The testers then started adding
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required by the fixed price warranty provisions, to correct deficiencies." It was claimed that this would cut up to five years from the development cycle, although it would require problems to be found in service and fixed on the operational vehicles.
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Unlike fixed-wing aircraft, attack helicopters had the ability to loiter near the front behind cover and pick their targets. They would then "pop up", launch a missile, and return to cover as soon as the missile hit its target. Using fast-reacting
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in the anti-aircraft role. The gun could be fired at 3,000 rounds per minute for anti-aircraft use, or 180 rounds per minute for use against ground targets, fed from a 1,464-round magazine. The aluminium turret was topped by two radars and an
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At one point the Army started to become concerned about developments in sensor technologies that would allow attacks by fixed-wing aircraft at night or in bad weather. They developed a requirement for a weapon system able to operate using
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system, with the tracking radar mounted on the front of the turret, beside the guns, and the search radar on top. The turret also included independently stabilized optical sights and a laser range finder for manual engagements.
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contract." The tests were monitored by the Pentagon's new Director, Operational Test and Evaluation Office (DOT&E), mandated by Congress in 1983 to serve as an independent watchdog. The tests were carried out late in 1984.
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vehicles, which had dramatically improved cross-country performance. The M113-based Vulcan and Chaparral could not keep up with them on the advance, which would leave the new vehicles open to attack in a fast moving front.
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higher deadweight mass than the smaller anti-aircraft platforms. These factors would be important in the primary scenario for which the DIVAD was to be deployed, that being the large-theater land operations vs the
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Still lacking an effective anti-aircraft system, the Army started development of two stop-gap systems that were meant to operate in concert as the "Chaparral-Vulcan Air Defense System". The
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to the drone to address this "problem", eventually having to add four. Easterbrook, still covering the ongoing debacle, described this as being similar to demonstrating the abilities of a
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The limited effectiveness of the Vulcan/Chaparral was not the only problem the US Army was facing in the late 1970s. At the time they were also in the process of introducing the new
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technologies that were intended to allow rapid and low-cost development, a series of technical problems and massive cost overruns resulted in the cancelation of the project in 1985.
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batteries would fly low, directly into the Shilka's envelope. Several aircraft were lost or damaged. The Shilka proved that a modern SPAAG was effective against modern aircraft.
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This was interpreted by the press as an attempt to "fake" the results, describing it as "sophomoric deceits". From that point on, every test success was written off as faked.
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missiles on the target for a period of time to allow them to lock on, limiting its ability to deal with quickly moving targets. Both vehicles were optionally supported by the
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was able to carry out only limited operations in bad weather, and the Soviets had a considerably less capable force in this regard. The idea gained little traction and died.
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proposed as the basis for a new SPAAG. Although the gun was extremely powerful, at some point in the late 1950s the Army decided that all gun-based systems were out of date.
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that canceling the project did not imply a lack of need, he started the process of studying a missile-based system to fill the same niche. This led to the Oerlikon Canada
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awarded. The decision was controversial, as the General Dynamics entry had "outscored" the Ford design consistently in testing, nineteen "kills" to nine by most accounts.
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where its namesake hailed from, one is in the Wahner E. Brooks Historical Exhibit at the U.S. Army Yuma Proving Grounds, AZ, another is located at the AAF Museum in
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a target with a 30-round burst. In addition to all-weather capability, it also needed to have optical aiming capabilities, including a FLIR and laser rangefinder.
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General Dynamics entered the XM246 into the DIVAD project. The large round object on the front of the turret is the targeting radar, the search radar is on top.
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On 13 January 1978, General Dynamics and Ford were given development contracts for one prototype each, the XM246 and XM247 respectively, to be delivered to
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Colonel Parker unveiled the DIVAD plan to 49 industry representatives on 18 May 1977. The DIVAD's requirement demanded that the entrants be based on the
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latrine fan, mistaking its return for a moving target of low-priority. Reporting on the incident in another article on the vehicle's woes,
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decided to skip the traditional development period and try to go straight into production by using a number of "off-the-shelf" parts.
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had the ability to be folded down to reduce the vehicle's height during travel. The tracking radar was a modified version of the
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Laser Guided Bomb, is severely criticised for its lack of success in testing, despite the long and expensive efforts put forth.
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Most of the production Sergeants York ended up as targets on air force bombing ranges. However, one is on display at the
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They also worked in the earlier FLIR/laser requirement. The system was later renamed "Division Air Defense" (DIVAD).
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in order to counter these threats. However, the rest of the military establishment disapproved of the idea; even the
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Rudolph Penner, "Army Air Defense for Forward Areas: Strategies and Costs", U.S. Government Printing Office, 1986
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improved to the point where they became a major threat to armoured operations. The U.S. led the field with their
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DIVAD Hearings, Hearings before the Subcommittee on Tactical Warfare of the Senate Committee on Armed Services
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entered a system based on their older Vigilante gun, modified to fire the 35 mm round from the
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fire-control computer. Raytheon demonstrated that the turret, although designed for the
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Philip Trewhitt, "Armoured Fighting Vehicles", Prospero Books, 1999 (second edition?).
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At the time, most U.S. military policy was based on the US Air Force quickly gaining
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systems of limited performance that had been introduced when the more advanced
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missile system. Mauler mounted a nine-missile magazine on top of an adapted
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system, which suffered problems of its own and entered service only in the
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to the DIVAD system, leading to even more cries about its ineffectiveness.
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tank, it replaced the Patton's turret with a new one that featured twin
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reported that "Michael Duffy, a reporter for the industry publication
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As Washington became increasingly fed up with the DIVAD's problems,
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It did not fare much better against fixed-wing targets either, see
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The first effective SPAAG in U.S. Army service was the all-manual
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entered a version with a small turret mounting their 30 mm
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proposed using the turret from the Dutch version of the German
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The next proposed replacement for the Duster was the ambitious
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A M247 in Nevada. The twin barrels are side-on to the camera.
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HMMWV-based Stinger-equipped systems have been downsized.
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later commented on the politicized nature of the contest.
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the Vulcan/Chaparral combination was effectively useless.
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Self-propelled anti-aircraft weapons of the United States
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Earlier Soviet equivalent that also never entered service
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John Adam, "The Sergeant York Gun: A Massive Misfire",
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The first proposed replacement for the Duster was the
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The Sergeant York was intended to fight alongside the
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rapid-fire guns. The vehicle was named after Sergeant
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The M247 Sergeant York was referenced in the movie "
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The simple 387:guns based on the same chassis as used for the 130:7.67 m (25 ft 2 in) gun forward 889:List of land vehicles of the U.S. Armed Forces 494:During the late 1960s the combination of the 8: 1106:"The Yom Kippur War 1973: The Golan Heights" 1082:, US Army, September/October 1976, pg. 59–60 132:6.42 m (21 ft 1 in) hull only 27:"M247" redirects here. For the highway, see 1185: 1183: 1181: 1179: 739:helicopters and twenty-one smaller drones. 38: 1423:Military vehicles introduced in the 1980s 1242: 1240: 1155: 1153: 1151: 1149: 1091:Statements by General Louis Wagner, Jr., 828:. The niche was eventually filled by the 454:(FAAR), but this system was towed by the 1056:"TOW System History: Project Management" 1333:Gregg Easterbrook, "York, York, York", 1312: 1310: 1308: 1135: 1133: 1131: 929: 1207: 1205: 1203: 1201: 1199: 1034: 1032: 1030: 1028: 1026: 841:Sgt. Alvin C. York State Historic Park 57:Sgt. Alvin C. York State Historic Park 1379:Air Defense Artillery April–June 2005 452:AN/MPQ-49 Forward Area Alerting Radar 7: 403:when its replacement never arrived. 55:An M247 Sergeant York on display at 445:missile system, which combined the 292:DIVAD (Division Air Defense) was a 1418:Tracked armoured fighting vehicles 1117:Asher Sharoni and Lawrence Bacon, 1104:Simon Dunstan and Howard Gerrard, 1095:, 98th Congress, 2nd Session, 1984 753:electronic counter-countermeasures 395:light tank chassis to produce the 335:, in a role similar to the Soviet 25: 1316:Bruce van Voost and Amy Wilentz, 1119:"Forward Area Air-Ground Defense" 1108:, Osprey Publishing, 2003, pg. 25 990:"The Red Queen and the Vigilante" 1318:"No More Time for Sergeant York" 1002:"General Dynamics MIM-46 Mauler" 300:in the late 1970s. Based on the 294:self-propelled anti-aircraft gun 49: 1264:Biddle, Wayne (23 March 1994). 458:and could not be used near the 381:M19 Multiple Gun Motor Carriage 248:Continental AVDS-1790-2D diesel 69:Self-propelled antiaircraft gun 36:Self-propelled antiaircraft gun 853:Arkansas National Guard Museum 683:'s entry was based around the 423:M113 Armored Personnel Carrier 345:M163 Vulcan Air Defense System 216:Maximum firing range 1: 1172:"The Red Queen and Vigilante" 1076:"Chaparral Air Defence Tests" 1189:Gregg Easterbrook, "DIVAD", 1363:"Gunning for Sergeant York" 1266:"Censuring an Arms Builder" 1232:Jane's Armour and Artillery 861:North Little Rock, Arkansas 1439: 1160:"M247 Sergeant York DIVAD" 656:Hollandse Signaalapparaten 383:, which consisted of twin 359:missile failed to mature. 26: 1193:, October 1982, pp. 29–39 1080:With Our Comrades in Arms 630:system, all from Sperry. 272:500 km (310 mi) 223: 171:0.96 kg (projectile) 160: 75:Place of origin 48: 362:Despite the use of many 29:M-247 (Michigan highway) 1061:7 November 2010 at the 1046:, March 2002, pp. 15–22 1018:"Ford MIM-72 Chaparral" 621:series, widely used in 343:. It would replace the 1347:"No time for Sergeant" 1291:The Washington Monthly 1254:, August 1988, pp. 3–9 1246:Major Michael Ditton, 925:References & notes 690:Westinghouse AN/APG-66 608: 571: 491: 296:(SPAAG), developed by 207:Rate of fire 606: 569: 490:A cutaway of the M247 489: 385:40 mm L60 Bofors 1234:, Volume 11, pg. 544 980:, globalsecurity.org 965:"M247 Sergeant York" 793:Secretary of Defense 694:F-16 Fighting Falcon 1289:Gregg Easterbrook, 731:they shot down two 642:A-10 Thunderbolt II 43:M247 Sergeant York 1337:, 30 December 1985 1324:, 9 September 1985 1270:The New York Times 1211:Thomas McNaugher, 1170:Anthony Williams, 1065:, Redstone Arsenal 765:Washington Monthly 660:Oerlikon Contraves 609: 572: 500:anti-tank missiles 492: 393:M41 Walker Bulldog 290:M247 Sergeant York 83:Production history 967:. Military-Today. 906:that also uses a 796:Caspar Weinberger 702:Gregg Easterbrook 685:Bofors 40 mm L/70 652:Flakpanzer Gepard 472:laser rangefinder 341:Flakpanzer Gepard 286: 285: 240:(with 580 rounds) 238:Bofors 40 mm L/70 16:(Redirected from 1430: 1381: 1376: 1370: 1360: 1354: 1353:, September 1985 1344: 1338: 1335:The New Republic 1331: 1325: 1314: 1303: 1300: 1294: 1287: 1281: 1280: 1278: 1276: 1261: 1255: 1244: 1235: 1229: 1223: 1209: 1194: 1191:Atlantic Monthly 1187: 1174: 1168: 1162: 1157: 1144: 1137: 1126: 1115: 1109: 1102: 1096: 1089: 1083: 1072: 1066: 1053: 1047: 1038:Irene Willhite, 1036: 1021: 1016:Andreas Parsch, 1014: 1005: 1000:Andreas Parsch, 998: 992: 987: 981: 975: 969: 968: 961: 918:ZSU-37-2 Yenisei 805:radar reflectors 670:General Dynamics 640:cannon from the 634:General Electric 512:Easter Offensive 447:AIM-9 Sidewinder 443:MIM-72 Chaparral 408:Sperry Vigilante 349:MIM-72 Chaparral 279: 53: 44: 39: 21: 1438: 1437: 1433: 1432: 1431: 1429: 1428: 1427: 1398: 1397: 1384: 1377: 1373: 1361: 1357: 1345: 1341: 1332: 1328: 1315: 1306: 1301: 1297: 1293:, November 1984 1288: 1284: 1274: 1272: 1263: 1262: 1258: 1252:The Army Lawyer 1245: 1238: 1230: 1226: 1210: 1197: 1188: 1177: 1169: 1165: 1158: 1147: 1143:, February 1987 1138: 1129: 1116: 1112: 1103: 1099: 1090: 1086: 1073: 1069: 1063:Wayback Machine 1054: 1050: 1037: 1024: 1015: 1008: 999: 995: 988: 984: 976: 972: 963: 962: 931: 927: 912:proximity-fused 885: 869: 786:Stinger missile 781: 735:fighters, five 724: 601: 580:air superiority 564: 518:missile on the 484: 482:Pop-up problems 377: 372: 269: 267: 249: 233: 231: 224: 161: 131: 60: 42: 37: 32: 23: 22: 15: 12: 11: 5: 1436: 1434: 1426: 1425: 1420: 1415: 1410: 1400: 1399: 1396: 1395: 1383: 1382: 1371: 1355: 1339: 1326: 1304: 1295: 1282: 1256: 1236: 1224: 1195: 1175: 1163: 1145: 1127: 1110: 1097: 1084: 1067: 1048: 1044:Cold War Times 1022: 1006: 993: 982: 970: 928: 926: 923: 922: 921: 915: 892: 891: 884: 881: 868: 867:Representation 865: 780: 777: 723: 720: 711: 710: 681:Ford Aerospace 658:radars and an 600: 597: 563: 560: 483: 480: 376: 373: 371: 368: 298:Ford Aerospace 284: 283: 282:48 km/h (road) 280: 278:Maximum speed 274: 273: 270: 265: 262: 261: 256: 252: 251: 246: 242: 241: 234: 229: 226: 225: 221: 220: 217: 213: 212: 209: 203: 202: 199: 193: 192: 189: 183: 182: 181:40 mm (1.57in) 179: 173: 172: 169: 163: 162: 158: 157: 154: 150: 149: 146: 142: 141: 138: 134: 133: 128: 124: 123: 120: 116: 115: 114:Specifications 111: 110: 107: 103: 102: 99: 95: 94: 92:Ford Aerospace 89: 85: 84: 80: 79: 76: 72: 71: 66: 62: 61: 54: 46: 45: 35: 24: 14: 13: 10: 9: 6: 4: 3: 2: 1435: 1424: 1421: 1419: 1416: 1414: 1411: 1409: 1406: 1405: 1403: 1394: 1393:1-894102-81-9 1390: 1386: 1385: 1380: 1375: 1372: 1369:, August 1985 1368: 1364: 1359: 1356: 1352: 1348: 1343: 1340: 1336: 1330: 1327: 1323: 1319: 1313: 1311: 1309: 1305: 1299: 1296: 1292: 1286: 1283: 1271: 1267: 1260: 1257: 1253: 1249: 1243: 1241: 1237: 1233: 1228: 1225: 1222: 1221:0-8157-5625-9 1218: 1214: 1208: 1206: 1204: 1202: 1200: 1196: 1192: 1186: 1184: 1182: 1180: 1176: 1173: 1167: 1164: 1161: 1156: 1154: 1152: 1150: 1146: 1142: 1141:IEEE Spectrum 1136: 1134: 1132: 1128: 1124: 1120: 1114: 1111: 1107: 1101: 1098: 1094: 1088: 1085: 1081: 1077: 1071: 1068: 1064: 1060: 1057: 1052: 1049: 1045: 1041: 1035: 1033: 1031: 1029: 1027: 1023: 1019: 1013: 1011: 1007: 1003: 997: 994: 991: 986: 983: 979: 974: 971: 966: 960: 958: 956: 954: 952: 950: 948: 946: 944: 942: 940: 938: 936: 934: 930: 924: 919: 916: 913: 909: 905: 902: 899: 898: 897: 896: 890: 887: 886: 882: 880: 878: 874: 873:Pentagon Wars 866: 864: 862: 858: 857:Camp Robinson 854: 850: 846: 845:Pall Mall, TN 842: 837: 835: 834:M1097 Avenger 831: 830:M6 Linebacker 827: 826:Canadian Army 823: 817: 813: 810: 806: 800: 797: 794: 789: 787: 778: 776: 772: 770: 766: 760: 756: 754: 748: 744: 740: 738: 734: 729: 721: 719: 717: 707: 706: 705: 703: 700:. Journalist 699: 695: 691: 686: 682: 678: 675: 671: 667: 665: 661: 657: 653: 649: 645: 643: 639: 638:GAU-8 Avenger 635: 631: 629: 624: 620: 616: 612: 605: 598: 596: 593: 588: 584: 581: 576: 568: 561: 559: 557: 553: 548: 545: 541: 536: 532: 529: 523: 521: 517: 513: 509: 508:UH-1 Iroquois 505: 501: 497: 488: 481: 479: 477: 473: 469: 463: 461: 457: 453: 448: 444: 439: 436: 433:combined the 432: 427: 424: 420: 419:MIM-46 Mauler 415: 413: 409: 404: 402: 398: 394: 390: 386: 382: 375:Prior efforts 374: 369: 367: 365: 364:off the shelf 360: 358: 357:MIM-46 Mauler 354: 350: 346: 342: 338: 334: 330: 326: 321: 319: 315: 311: 307: 303: 299: 295: 291: 281: 275: 271: 263: 260: 257: 253: 247: 243: 239: 235: 227: 222: 218: 214: 210: 208: 204: 200: 198: 194: 190: 188: 184: 180: 178: 174: 170: 168: 164: 159: 155: 151: 147: 143: 139: 135: 129: 125: 121: 117: 112: 108: 104: 100: 96: 93: 90: 86: 81: 78:United States 77: 73: 70: 67: 63: 58: 52: 47: 40: 34: 30: 19: 1374: 1366: 1358: 1350: 1342: 1334: 1329: 1321: 1298: 1290: 1285: 1273:. Retrieved 1269: 1259: 1251: 1231: 1227: 1190: 1166: 1140: 1122: 1113: 1100: 1092: 1087: 1079: 1070: 1051: 1043: 996: 985: 978:"M42 Duster" 973: 894: 893: 870: 849:Danville, VA 838: 818: 814: 801: 790: 782: 773: 769:Defense Week 768: 764: 761: 757: 749: 745: 741: 725: 712: 679: 674:Phalanx CIWS 668: 646: 632: 619:Oerlikon KDA 613: 610: 589: 585: 577: 573: 549: 537: 533: 524: 516:9K114 Shturm 493: 476:US Air Force 464: 440: 428: 416: 405: 378: 361: 352: 322: 310:Bofors 40 mm 289: 287: 219:12.5 km 59:, Tennessee. 33: 908:40mm Bofors 779:Cancelation 722:Development 716:Warsaw Pact 615:Sperry Rand 528:wire-guided 504:TOW missile 460:front lines 412:Gatling gun 401:Vietnam War 389:M24 Chaffee 339:and German 318:World War I 316:, a famous 266:Operational 259:Torsion bar 191:−5° to +85° 1402:Categories 1351:The Nation 914:ammunition 901:CV9040 AAV 809:bloodhound 733:F-86 Sabre 728:Fort Bliss 592:M48 Patton 544:M2 Bradley 496:helicopter 435:M61 Vulcan 397:M42 Duster 347:SPAAG and 329:M2 Bradley 314:Alvin York 308:-directed 302:M48 Patton 255:Suspension 1275:16 August 895:Non-NATO: 737:UH-1 Huey 692:from the 664:Leopard 1 540:M1 Abrams 520:Mil Mi-24 456:Gama Goat 431:M163 VADS 351:missile, 333:U.S. Army 325:M1 Abrams 187:Elevation 101:1977–1985 1059:Archived 883:See also 648:Raytheon 599:Entrants 552:ZSU-23-4 337:ZSU-23-4 232:armament 197:Traverse 122:54.4 ton 106:Produced 98:Designed 88:Designer 877:Paveway 506:on the 370:History 331:in the 211:600 rpm 177:Caliber 1391:  1219:  1020:, 2002 1004:, 2002 698:Bofors 470:and a 353:ad hoc 320:hero. 250:750 hp 245:Engine 145:Height 140:3.63 m 127:Length 1123:Armor 910:with 822:ADATS 562:DIVAD 306:radar 268:range 167:Shell 137:Width 18:DIVAD 1389:ISBN 1367:Time 1322:Time 1277:2018 1217:ISBN 623:NATO 556:SA-6 542:and 498:and 468:FLIR 327:and 288:The 236:2 × 230:Main 201:360° 153:Crew 148:3.42 119:Mass 65:Type 904:APC 855:at 843:in 628:IFF 1404:: 1365:, 1349:, 1320:, 1307:^ 1268:. 1250:, 1239:^ 1198:^ 1178:^ 1148:^ 1130:^ 1121:, 1078:, 1042:, 1025:^ 1009:^ 932:^ 863:. 859:, 718:. 109:50 1279:. 156:3 31:. 20:)

Index

DIVAD
M-247 (Michigan highway)

Sgt. Alvin C. York State Historic Park
Self-propelled antiaircraft gun
Ford Aerospace
Shell
Caliber
Elevation
Traverse
Rate of fire
Bofors 40 mm L/70
Torsion bar
self-propelled anti-aircraft gun
Ford Aerospace
M48 Patton
radar
Bofors 40 mm
Alvin York
World War I
M1 Abrams
M2 Bradley
U.S. Army
ZSU-23-4
Flakpanzer Gepard
M163 Vulcan Air Defense System
MIM-72 Chaparral
MIM-46 Mauler
off the shelf
M19 Multiple Gun Motor Carriage

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