The Lockheed X-7 (dubbed the "Flying Stove Pipe") is an American unmanned test bed of the 1950s for ramjet engines and missile guidance technology. It was the basis for the later Lockheed AQM-60 Kingfisher , a system used to test American air defenses against nuclear missile attack.
88-702: Development of the Kingfisher was first initiated in December 1946. The X-7 was called into production by the United States Air Force requirement for the development of an unmanned ramjet test plane with a top speed of at least Mach 3 (3,200 km/h; 2,000 mph). The X-7 project was developed under the AMC designator MX-883 and was given in the Lockheed in-house designation L-171. The L-171
176-663: A Defense Area formed a circle around these cities and bases. There was no fixed number of Nike batteries in a Defense Area and the actual number of batteries varied from a low of 2 in the Barksdale AFB Defense Area to a high of 22 in the Chicago Defense Area. In the US the sites were numbered from 01 to 99 starting at the north and increasing clockwise. The numbers had no relation to actual compass headings, but generally Nike sites numbered 01 to 25 were to
264-665: A battery in Leonardo, New Jersey on 22 May 1958, killing 6 soldiers and 4 civilians. A memorial can be found at Fort Hancock in the Sandy Hook Unit of the Gateway National Recreation Area . As early as April 1952, planners expressed concerns over the Ajax's ability to pick out targets in a packed formation. The Nike radar would see several nearby targets as a single larger one, unable to resolve
352-644: A couch was set up, on which the panoply of the hero was placed, a practice which recalls the Roman Lectisternium . The identification of Ajax with the family of Aeacus was chiefly a matter which concerned the Athenians, after Salamis had come into their possession, on which occasion Solon is said to have inserted a line in the Iliad (2.557–558), for the purpose of supporting the Athenian claim to
440-470: A flock of sheep and slaughters them, imagining they are the Achaean leaders, including Odysseus and Agamemnon. When he comes to his senses, covered in blood, he realizes that what he has done has diminished his honor, and decides that he prefers to kill himself rather than live in shame. He does so with the same sword which Hector gave him when they exchanged presents. From his blood sprang a red flower, as at
528-656: A ground-based computer associated with radar which would track both the target and the missile in flight. This was not the only Army missile project at the time; the US Army Air Force was involved in studies of the Ground-to-Air Pilotless Aircraft (GAPA), a slightly longer-range system based on what was essentially a drone aircraft. Bell had been invited to take part in GAPA as well, but declined as they wanted to concentrate on Nike. GAPA
616-563: A large stone, but Hector battles on until the heralds , acting at the direction of Zeus, call a draw, with the two combatants exchanging gifts, Ajax giving Hector a purple sash and Hector giving Ajax his sharp sword. The second fight between Ajax and Hector occurs when the latter breaks into the Mycenaean camp, and battles with the Greeks among the ships. In Book 14, Ajax throws a giant rock at Hector which almost kills him. In Book 15, Hector
704-483: A poison arrow belonging to Heracles ). He was described as fearless, strong, and powerful but also with a very high level of combat intelligence. Ajax commands his army wielding a huge shield made of seven cowhides with a layer of bronze. Most notably, Ajax is not wounded in any of the battles described in the Iliad , and he is the only principal character on either side who does not receive substantial assistance from any of
792-538: A serious problem for the planners, and especially the Corps of Engineers Real Estate Offices. As early as 1952 they had asked for a solution, which led to design architect Leon Chatelain Jr. developing an underground configuration. As the missile batteries were now protected and accidental explosions would be contained, the safe area was dramatically reduced, and that cut the land requirement down to 40 acres (16 ha). This
880-424: A signal from the computer. The warheads were surrounded by metal cubes providing a blast-fragmentation effect. The Nike Ajax system could attack only one target at a time, a problem it shared with its descendants. As the various Ajax missile sites were overlapped, this led to the possibility that two sites might attack one target while another flew past both. ARADCOM initially set up a coordination system not unlike
968-521: A simple fuselage-mounted dropping system. This system was used until its final flight in July 1960. Related development Aircraft of comparable role, configuration, and era MIM-3 Nike Ajax The Nike Ajax was an American guided surface-to-air missile (SAM) developed by Bell Labs for the United States Army . The world's first operational guided surface-to-air missile,
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#17327761211221056-442: A single Boeing B-17 Flying Fortress . Flying faster means that the aircraft passes through the range of a gun more rapidly, reducing the number of rounds a particular gun can fire at that aircraft. Flying at higher altitudes often has a similar effect, as it requires larger shells to reach those altitudes, and this typically results in slower firing rates for a variety of practical reasons. Aircraft using jet engines roughly double
1144-474: A very small number of critical hits were achieved. Due to pressure and embarrassment of the military, the X-7 project was terminated in the mid-1960s. Besides the surface to air missile tests, the X-7 project was also used to test communication equipment for acceleration tests, testing aerodynamics, booster propellants, thermodynamics, and parachutes. The X-7 was constructed from steel, unlike its successors such as
1232-482: Is held to determine who deserves the armor. Ajax argues that because of his strength and the fighting he has done for the Greeks, including saving the ships from Hector, and driving him off with a massive rock, he deserves this magical protection. However, Odysseus proves to be more eloquent, and with the aid of Athena, the council gives him the armor. Ajax, distraught by this result and "conquered by his own grief", plunges his sword into his own chest, killing himself. In
1320-453: Is represented (although not by Homer) as living after his death on the island of Leuke at the mouth of the Danube . Ajax, who in the post-Homeric legend is described as the grandson of Aeacus and the great-grandson of Zeus, was the tutelary hero of the island of Salamis, where he had a temple and an image, and where a festival called Aianteia was celebrated in his honour. At this festival
1408-545: Is restored to his strength by Apollo and returns to attack the ships. Ajax, wielding an enormous spear as a weapon and leaping from ship to ship, holds off the Trojan armies virtually single-handedly. In Book 16, Hector and Ajax duel once again. Hector then disarms Ajax (although Ajax is not hurt) and Ajax is forced to retreat, seeing that Zeus is clearly favoring Hector. Hector and the Trojans succeed in burning one Greek ship,
1496-580: The CIM-10 Bomarc . They were redesigned with better materials for use on the hypersonic Lockheed D-21 drone launched from the back of a Lockheed M-21 , a derivative of the Lockheed A-12 , or from under the wing of a Boeing B-52 Stratofortress . The X-7 was launched at speed release from the underside of either a B-29 or B-50 carrier plane. The jet would then take over and build up speed to its top speed of 1,600 km/h (1,000 mph), but
1584-680: The Little Iliad , Ajax goes mad with rage at Odysseus' victory and slaughters the cattle of the Greeks. After returning to his senses, he kills himself out of shame. The Belvedere Torso , a marble torso now in the Vatican Museums, is considered to depict Ajax "in the act of contemplating his suicide ". In Sophocles ' play Ajax , a famous retelling of Ajax's demise, after the armor is awarded to Odysseus, Ajax feels so insulted that he wants to kill Agamemnon and Menelaus. Athena intervenes and clouds his mind and vision, and he goes to
1672-623: The Royal Air Force 's plotting room from the Battle of Britain , with commands from a central manual plotting room being sent to batteries over telephone lines. This was clearly inadequate, and in the late 1950s the Interim Battery Data Link was introduced to share data between batteries. This allowed command to be devolved to the battery commanders, who could see which targets other batteries were attacking. This system
1760-672: The hypergolic fuels, and a variety of service areas. Long distance surveillance was handled by the ACQ or LOPAR radar, short for "Low-Power Acquisition Radar." LOPAR included an IFF system and a system for handing off targets to the tracking radars. Two monopulse tracking radars were used, the Target Tracking Radar (TTR) to track the target handed off by the LOPAR, and the Missile Tracking Radar (MTR) to track
1848-404: The "amplitude null system", with the latter being selected. This study resulted in the development of tunable magnetrons for the 250 kilowatt X-band radars for tracking, and 1000 kilowatt S-band radar for target detection. Experiments demonstrated that the radar return from the missile at high altitudes was limited, and when calls for an extended altitude of 150,000 feet (46,000 m) were added to
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#17327761211221936-421: The 1970s. Originally known simply as " Nike ", it gained the " Ajax " as part of a 1956 renaming effort that resulted from the introduction of the similarly named Nike Hercules . It was initially given the identifier SAM-A-7 (Surface-to-air, Army, design 7) as part of an early tri-service identification system, but later changed to MIM-3 in 1962. Technological development during the 1950s quickly rendered
2024-422: The 93,000 lbf (410 kN ) of booster power would accelerate the missile to supersonic speeds of 1,750 feet per second (1,190 mph; 530 m/s) at the end of a booster phase of 1.8 seconds, increasing almost continually to about 2,500 feet per second (1,700 mph; 760 m/s) at the end of the liquid engine's firing, then decreasing to 1,150 feet per second (780 mph; 350 m/s) during
2112-520: The A-12 and YF-12 which used titanium. These X-7 planes had wings constructed from stainless steel and a fuselage made from a nickel alloy. The use of steel was due to the inability of aluminum to endure air friction heating at hypersonic speeds, years before the widespread introduction of titanium. The engines developed for the X-7/AQM-60 were designed to operate for a short time, to test the design for
2200-508: The Achaeans. Significantly, while one of the deadliest heroes in the whole poem, Ajax has no aristeia depicting him on the offensive. In the Iliad , Ajax is notable for his abundant strength and courage, seen particularly in two fights with Hector . In Book 7, Ajax is chosen by lot to meet Hector in a duel which lasts most of a whole day. Ajax at first gets the better of the encounter, wounding Hector with his spear and knocking him down with
2288-609: The Allegheny JATO T39 2.6DS-51,000. The Navy's similar booster can be seen on the RIM-2 Terrier . A new series of test firings started in September 1948 but were stopped until May 1949 after a number of modifications were carried out. Funding problems then delayed the program until January 1950. From late January through April another 16 missiles were fired, with much better results. Through early development,
2376-540: The Great ", which distinguishes him from Ajax, son of Oileus , also known as Ajax the Lesser . Ajax is the son of Telamon . Telamon was the son of Aeacus and grandson of Zeus , and his first wife Periboea. By Telamon, he is also the elder half-brother of Teucer . Through his uncle Peleus (Telamon's brother), he is the cousin of Achilles . The etymology of his given name is uncertain. By folk etymology , his name
2464-723: The Hercules was deployed at new bases, providing coverage over existing Ajax areas. But plans had been made to convert existing Ajax sites to Hercules where possible, or close the Ajax base where it was not. As the Hercules had over double the range of the Ajax, fewer sites were needed to provide the same coverage. A total of 134 Hercules bases were commissioned, down from Ajax's 240. The last US Ajax site, outside Norfolk, Virginia , closed in November 1963. Ajax remained in active service in overseas locations for some time. The Japan Self-Defense Forces operated theirs until they were replaced by
2552-623: The Hercules-based Nike J in the 1970s. As the original Bell Nike team worked on Hercules, the nature of the strategic threat was changing. By the late 1950s the concern was the ICBM and little interest in the threat of bombers remained. Even before Hercules deployed, Bell was once again asked to consider the new threat. They concluded that the Nike B (Hercules) could be adapted into an anti-ballistic missile with relatively few changes to
2640-683: The Homestead AFB/Miami Defense Area, those starting with NY were in the New York Defense Area, and so forth. As an example Nike Site SF-88L refers to the launcher area (L) of the battery located in the northwestern part (88) of the San Francisco Defense Area (SF). Studies throughout the Nike project considered mobile launchers, but none were developed for the Ajax system. Missile sites were "relocatable" or "transportable", and all of
2728-567: The MIM-3 obsolete. It was unable to defend against more capable bombers or multiple targets in formation, and had relatively short range. Even while Nike was being deployed, these concerns led to the contracts for the greatly improved MIM-14 Nike Hercules , which began deployment in 1959. As Hercules developed, the threat moved from bombers to ICBMs , and the LIM-49 Nike Zeus anti-ballistic missile project started to address these. All of
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2816-543: The Nike Ajax was designed to attack conventional bomber aircraft flying at high subsonic speeds and altitudes above 50,000 feet (15 km). Nike entered service in 1954 and was initially deployed within the United States to defend against Soviet bomber attacks, though it was later deployed overseas to protect US military bases, and was also sold to various allied militaries. Some examples remained in use until
2904-664: The Nike project had not been considered very important. A series of events in the late 1940s led to a re-appraisal of the situation, including the Soviet atomic test in 1949, the communist victory in China, and the Berlin Blockade . The June 1950 opening of the Korea War brought all of this to a head and new urgency was given to US defense. In October 1950, US Secretary of Defense Charles E. Wilson appointed Kaufman Keller to
2992-483: The Nike projects were led by Bell Labs, due to their early work in radar guidance systems during World War II . Part of the Nike Ajax development program designed a new solid fuel rocket motor used for the missile's booster. This had originally been designed for the United States Navy 's missiles, and was enlarged for the Nike efforts. The rocket was so useful that it found numerous applications outside
3080-473: The TTR and MTR were sent to the analog tracking computer, which continually calculated the impact point and sent radio commands to the missile to guide it. In order to maximize range, the missile was normally flown almost vertically to a higher altitude than the target, where the thinner air lowered drag and allowed the missile to descend on its target. At the correct time, the missile's three warheads were triggered by
3168-451: The X-7 underwent many structural changes to adapt more closely for its intended purpose. The Kingfisher was put up against three surface to air missiles designed to test the capabilities of the X-7; SAM-A-7/ MIM-3 Nike Ajax , SAM-A-25/ MIM-14 Nike Hercules , and IM-99/CIM-10 Bomarc were the missiles used in the tests. During the testing of the SAMs, the X-7 outperformed the missiles and
3256-490: The administration area, area A, the magazine and launcher area with the missiles, L, and the Integrated Fire Control area with the radar and operations center, or IFC. Most sites placed the A and IFC on one parcel of land with the L on another, but some sites used three entirely separate areas. The IFC was located between 1,000 yards and a mile from the launchers, but had to be within the line-of-sight so
3344-503: The body back with his chariot; however, the Trojans have already stripped Patroclus of Achilles' armor. Ajax's prayer to Zeus to remove the fog that has descended on the battle to allow them to fight or die in the light of day has become proverbial. According to Hyginus , in total, Ajax killed 28 people at Troy. As the Iliad comes to a close, Ajax and the majority of other Greek warriors are alive and well. When Achilles dies, killed by Paris (with help from Apollo), Ajax and Odysseus are
3432-401: The challenge, and Project Nike was officially formed on 8 February 1945. The Bell team was given the task of attacking bombers flying at 500 mph (800 km/h) or more, at altitudes between 20,000 and 60,000 feet (6,100 and 18,300 m), and performing a 3 g turn at 40,000 feet (12,000 m). Bell reported back on 14 May 1945 (and a formal report the next day) that such a development
3520-520: The chance that any one shell will damage or destroy its target is very small. Successful anti-aircraft gunnery therefore requires as many rounds to be fired as possible. During the Blitz , British anti-aircraft gunners fired 49,044 shells in January 1941 for 12 kills, almost 4,100 shells per success. German gunners did better against Allied daylight raids, firing an estimated average of 2,800 shells to down
3608-424: The culmination of an assault that almost finishes the war. Ajax is responsible for the death of many Trojan lords, including Phorcys . Ajax often fought in tandem with his brother Teucer, known for his skill with the bow. Ajax would wield his magnificent shield, as Teucer stood behind picking off enemy Trojans. Achilles was absent during these encounters because of his feud with Agamemnon. In Book 9, Agamemnon and
Lockheed X-7 - Misplaced Pages Continue
3696-525: The death of Hyacinthus , which bore on its leaves the initial letters of his name Ai , also expressive of lament. His ashes were deposited in a golden urn on the Rhoetean promontory at the entrance of the Hellespont . Ajax's half-brother Teucer stood trial before his father for not bringing Ajax's body or famous weapons back. Teucer was acquitted for responsibility but found guilty of negligence. He
3784-528: The eagle. Many illustrious Athenians , including Cimon , Miltiades , Alcibiades and the historian Thucydides , traced their descent from Ajax. On an Etruscan tomb dedicated to Racvi Satlnei in Bologna (5th century BC), there is an inscription that says aivastelmunsl , which means "[family] of Telamonian Ajax". In the account of Dares the Phrygian , Ajax was illustrated as ". . .powerful. His voice
3872-484: The east to be located in the city itself. Moreover, various scenarios demonstrated that having a staggered two-layer layout of the sites would offer much greater protection, which argued for some bases to be located closer to the urban centers. For range safety reasons, launch sites had to have considerable empty land around them in the event of an accidental warhead or fuel explosion. Originally this would require about 119 acres (48 ha) of land per site. This presented
3960-482: The existing missile, which they called "Nike Ajax", while a slightly enlarged missile with the XW-7 warhead was known as "Nike Hercules". The Army selected the Hercules option, ordering it into development in December 1952. At the time, the missiles were officially known as Nike I and Nike B . As part of DA Circular 700–22, Nike I officially became Nike Ajax and Nike B became Nike Hercules . The nuclear-armed Nike B
4048-457: The gods (except for Agamemnon) who take part in the battles, although, in book 13, Poseidon strikes Ajax with his staff, renewing his strength. Unlike Diomedes , Agamemnon , and Achilles , Ajax appears as a mainly defensive warrior, instrumental in the defense of the Greek camp and ships and that of Patroclus ' body. When the Trojans are on the offensive, he is often seen covering the retreat of
4136-426: The heroes who fight against the Trojans to get the body and bury it with his companion, Patroclus. Ajax, with his great shield and spear, manages to recover the body and carry it to the ships, while Odysseus fights off the Trojans. After the burial, each claims Achilles' magical armor, which had been forged on Mount Olympus by the smith-god Hephaestus , for himself as recognition for his heroic efforts. A competition
4224-435: The impact point and send guidance signals to the missile encoded in the second radar's signals, and detonate the warhead on command (as opposed to a proximity fuse ). The Ballistics Research Laboratory was asked to calculate the proper warhead shaping to maximize the chance of a hit. Once determined, Picatinny Arsenal would produce the warhead, and Frankford Arsenal would provide a fuse. Douglas Aircraft would provide
4312-506: The individual aircraft. The warhead's lethal range was smaller than the resolution, so it might not approach any one of the aircraft close enough to damage it. This led to suggestions about equipping the Nike with a nuclear warhead, which would be able to attack the entire formation with a single round. Bell was asked to study this in May, and they considered two options; one using the WX-9 warhead on
4400-458: The island. Ajax then became an Attic hero; he was worshipped at Athens, where he had a statue in the market-place, and the tribe Aiantis was named after him. Pausanias also relates that a gigantic skeleton, its kneecap 5 inches (13 cm) in diameter, appeared on the beach near Sigeion , on the Trojan coast; these bones were identified as those of Ajax. In 2001, Yannis Lolos began excavating
4488-669: The mid-war period, the US Army had reached the same conclusion as their German counterparts: artillery-based anti-aircraft weapons were simply no longer useful. Accordingly, in February 1944 the Army Ground Forces sent the Army Service Forces (ASF) a request for information on the possibility of building a "major caliber anti-aircraft rocket torpedo". The ASF concluded that it was simply too early to tell if this
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#17327761211224576-430: The military world as the Ajax missiles were decommissioned in the 1960s. Many sounding rockets used the booster as their first or second stage, and many of those used "Nike" in their name. The inherent inaccuracy of anti-aircraft artillery means that when shells reach their targets they are effectively randomly distributed in the target area. This distribution is much larger than the lethal radius of any given shell, so
4664-405: The missile airframe and carry out aerodynamic studies, while Aerojet would supply a solid fuel rocket booster for initial launch, and Bell Aircraft would provide a liquid fuel rocket for the upper stage sustainer. The initial design used a thin upper stage with eight JATO -derived boosters wrapped around its tail. The resulting cluster looked quite boxy at launch time. It was expected that
4752-426: The missile as it flew toward the target. Launch of the missile was accomplished by lighting the solid fuel booster, which provided 59,000 lbf (260 kN ) of thrust for three seconds. The booster pushed the missile through the sound barrier, and it remained supersonic for the rest of its flight. The MTR picked up the missile as the booster fell away, and then tracked it continually after that point. Data from
4840-567: The missile. The role would require considerably greater upgrades to the radars and computers instead. These efforts gave rise to the Nike II project in 1958, soon known as LIM-49 Nike Zeus . Unlike the earlier Nike efforts, the Zeus would never reach operational status. Like the Ajax and Hercules, Zeus could only attack a single target at a time, although by deploying multiple radars it was expected that up to six missiles could be guided at once. This
4928-443: The newly created position of Director of Guided Weapons to speed their development. Keller examined the various ongoing projects and decided that Nike was the best developed. He recommended that development of Nike be accelerated and that an initial production run of 60 launch stations and 1,000 missiles should be completed by 31 December 1952, with continued production of 1,000 a month after that date. In January 1951, Wilson approved
5016-461: The next four years, 265 batteries were constructed around the majority of major northern and coastal cities. They replaced 896 radar-guided anti-aircraft guns, leaving only a handful of 75 mm Skysweeper emplacements as the only anti-aircraft artillery remaining in use by the US. All of the Skysweepers were removed from service by 1960. Several Nike Ajax missiles exploded accidentally at
5104-400: The northeast and east, those numbered 26 to 50 were to the southeast and south, those numbered 51 to 75 were to the southwest and west, and those numbered 76 to 99 were to the northwest and north. The Defense Areas were identified by a one- or two-letter code which were related to the city name. Thus those Nike sites starting with C were in the Chicago Defense Area, those starting with HM were in
5192-558: The order of 75 miles (121 km). A new long-range search radar was introduced, the HIPAR, but the original AQU radar was retained as well, now known as LOPAR. The tracking radars were also upgraded to higher power. But with those exceptions, Hercules was operationally similar to Ajax, and designed to operate at existing Ajax sites, using their launchers and underground facilities. Conversion from Ajax to Hercules began in June 1958. Initially,
5280-410: The other Mycenaean chiefs send Ajax, Odysseus and Phoenix to the tent of Achilles in an attempt to reconcile with the great warrior and induce him to return to the fight. Although Ajax speaks earnestly and is well received, he does not succeed in convincing Achilles. When Patroclus is killed, Hector tries to steal his body. Ajax, assisted by Menelaus , succeeds in fighting off the Trojans and taking
5368-520: The plan, in spite of additional testing being required. A new test series of the proposed production model was carried out starting in October, and on 27 November 1951, Nike successfully intercepted a QB-17 target drone. Twenty-two further tests followed that year. In the new year a new test series started, including a live-fire attack on a QB-17 in April 1952 that was viewed by visiting brass. Production
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#17327761211225456-475: The plane upright and preventing damage to the structure of the X-7. In 1954, the modified X-7 underwent significant changes and was renamed the X-7A-3. The wing shape was altered, and two small boosters were added to the plane, one under each wing. Due to these alterations, the drop method previously used was changed. The previous version was a complicated, bulky under-wing system, while the new design allowed for
5544-610: The production run. In 1957, the National Guard started taking over the anti-aircraft role, replacing regular army units at Bliss. Deployment of the Nike I was under the direction of the Army Anti-Aircraft Command (ARAACOM). ARAACOM initially proposed a series of widespread bases surrounding cities and major military sites. However, while planning the deployment around Chicago , it became clear that Lake Michigan would force sites protecting approach from
5632-415: The radars could see the missiles as they launched. The launch area normally consisted of two or three underground facilities and their aboveground launchers. Sites with four to six launchers were not unknown. A single launcher site normally held twelve missiles, eight in the service area and four in the underground ready area or on their launchers. When an alert was received, the missiles were transferred to
5720-621: The requirements, a transponder was added to the missile to boost the return. These changes, and many more, were summarized in a 28 January 1946 report. The project called for four rounds of test launches starting in 1946, with the aim of having a production design by 1949. The first test firing of a static round was carried out at the White Sands Proving Ground on 17 September 1946 and then returned to Douglas in California for study. The next week an unguided example
5808-719: The son of King Telamon and Periboea , and the half-brother of Teucer . He plays an important role in the Trojan War , and is portrayed as a towering figure and a warrior of great courage in Homer 's Iliad and in the Epic Cycle , a series of epic poems about the Trojan War , being second only to Achilles among Greek heroes of the war. He is also referred to as " Telamonian Ajax " ( Αἴας ὁ Τελαμώνιος , in Etruscan recorded as Aivas Tlamunus ), " Greater Ajax ", or " Ajax
5896-480: The speed and altitude over piston-powered designs, limiting the number of shells so greatly that the chance of hitting the bomber dropped almost to zero. As early as 1942, German flak commanders were keenly aware of the problem, and expecting to face jet bombers, they began developing missiles to supplant their guns. The western allies maintained air superiority for much of the war and their anti-aircraft systems did not see as much pressure to improve. Nevertheless, by
5984-418: The support equipment was built into trailers or otherwise provided road wheels. Ajax the Great On the Greek side: On the Trojan side: Ajax ( / ˈ eɪ dʒ æ k s / ) or Aias ( / ˈ aɪ . ə s / ; Ancient Greek : Αἴας , romanized : Aíās [aí̯.aːs] , gen. Αἴαντος Aíantos ; archaic ΑΣϜΑϺ [aí̯.waːs] ) is a Greek mythological hero ,
6072-415: The surface one at a time using an elevator, then pushed along rails on the surface leading to the launchers. The launchers bisected the rails, so the missiles were simply pushed over the launchers, connected to the electrical hookups, and then raised to about 85 degrees by the launchers. The missile launch area also contained a separate fueling area surrounded by a large berm, a required safety precaution given
6160-413: The team was forced to give up on the clustered booster concept. Invariably small differences in thrust between the different JATO bottles would lead to significant thrust asymmetries, ones that overwhelmed the stabilizing effect of the fins in spite of them being very large. Instead, the project selected a larger booster being developed by the US Navy 's Operation Bumblebee , creating a new version known as
6248-443: The zooming period. Early in the program, it was realized that existing radar systems based on the conical scanning method did not supply the performance needed for a high-speed missile. In particular, conical scanning radars required some time to settle on an accurate track. The decision was made to use a monopulse radar system for Nike. Two systems were considered, one using phased signals, and another using signal timing known as
6336-516: Was Fort Meade , who started receiving their missiles in December 1953, replacing their 120 mm M1 guns . This site reached initial operational status in March 1954, and went on full round-the-clock combat status on 30 May. The Army considers 30 May to be the "birth date" of the Nike system. On 15 November 1956 the missile was officially renamed as the Nike Ajax , as part of DA Circular 700–22. Over
6424-672: Was canceled in January 1963. As Ajax missiles were removed from service, thousands of unused booster rockets were left over from the program, and more when the Hercules was removed from service years later. These proved perfect for all sorts of roles, notably as the boosters for various sounding rockets . These designs often, but not always, included "Nike" in their name. Examples include the Nike-Cajun , Nike-Apache , Nike-Smoke and many others. A complete Nike Ajax system consisted of several radars, computers, missiles, and their launchers. Sites were generally arranged in three major sections,
6512-492: Was clear, his hair black and curly. He was perfectly single-minded and unrelenting in the onslaught of battle." Meanwhile, In Homer's Iliad he is described as of great stature, colossal frame, and strongest of all the Achaeans . Known as the "bulwark of the Achaeans ", he was trained by the centaur Chiron (who had trained Ajax's father Telamon and Achilles' father Peleus and later died of an accidental wound inflicted by
6600-444: Was disowned by his father and was not allowed to return to his home, the island of Salamis off the coast of Athens. Homer is somewhat vague about the precise manner of Ajax's death but does ascribe it to his loss in the dispute over Achilles' armor; when Odysseus visits Hades , he begs the soul of Ajax to speak to him, but Ajax, still resentful over the old quarrel, refuses and descends silently back into Erebus . Like Achilles, he
6688-514: Was fine when the threat was a few dozen enemy ICBMs, but as it became clear that the Soviets were placing almost all of their effort into ICBMs, Zeus looked increasingly unable to deal with the hundreds of targets that would result. Serious technical problems also arose, including electromagnetic pulse and similar effects that blocked radar, questions about the missile's ability to damage enemy warheads, and above all, rapidly rising costs. Development
6776-581: Was further improved with the introduction of the Missile Master system, which replaced manual plotting with a computer-run system, and then the simpler and smaller Missile Mentor and BIRDIE systems. The Nike batteries were organized in Defense Areas and placed around population centers and strategic locations such as long-range bomber and important military/naval bases, nuclear production facilities and (later) ICBM sites. The Nike sites in
6864-500: Was handed to the newly formed US Air Force in 1948, when that force evolved out of the Army Air Force. At the ranges and speeds being considered, even a supersonic rocket will take enough time to reach the target that the missile needs to lead the bomber in order to properly intercept it. Bell proposed a system using two radars, one tracking the target, and another tracking the missile. An analog computer would calculate
6952-399: Was indeed possible. They concluded that: A supersonic rocket missile should be vertically launched under the thrust of a solid-fuel booster which was then to be dropped; thence, self-propelled by a liquid-fuel motor, the missile should be guided to a predicted intercept point in space and detonated by remote control commands; these commands should be transmitted by radio signals determined by
7040-572: Was initially designated the PTV-A-1 by the USAF but was later designated the X-7 in 1951. Despite its first launch being a failure, after re-development of the original ramjet, following test flights were successful. A total of 130 X-7 flights were conducted from April 1951 to July 1960. The X-7 laid the foundation for the AQM-60 Kingfisher. Being the testbed for several yearlong projects,
7128-410: Was later redesigned to push Mach 4.3 (4,680 km/h; 2,910 mph). The recovery method of the X-7 rocket plane was a new and simple design for a test plane of its kind but functioned as designed. A multi-stage parachute was deployed after the jet had exhausted its fuel, slowing its descent. Once it had reached the ground, the long metal rod on the end of the nose penetrated the ground, keeping
7216-507: Was launched in August 1952. By the end of the year, three complete ground systems and 1,000 missiles had been delivered to White Sands. The complete system was set up by January 1953, and an underground launch site first fired on 5 June 1953. Crew training was carried out at Fort Bliss with the missiles fired toward White Sands. Service deliveries began that year, and eventually, a total of 350 launch systems and 13,714 missiles were produced over
7304-414: Was launched, and similar tests followed until 28 January 1947, ending the first test series. During one test a missile reached an altitude of 140,000 feet. A second test series followed in September and October 1947, including several improvements in the design in order to address problems with the booster. A further series in 1948, originally planned for 1946, continued to demonstrate problems. Eventually,
7392-540: Was opened to tender, and was picked up by other companies, notably Boeing . This led to a semi-formalized agreement that the Army Air Force and the Ordnance Corps would split development based on whether or not the design "depend[ed] for sustenance primarily on the lift of aerodynamic forces" like GAPA, or "primary on the momentum of the missile" like Nike. As part of the Key West Agreement , GAPA
7480-490: Was originally going to be a slightly larger Nike I, just wide enough to carry the new warhead. But during early development, the decision was made to move to a solid fuel upper stage. This required a larger fuselage and was heavier as well. In order to get the new missile into the air, the booster engine was replaced with a new design using four of the original boosters strapped together. The new missile offered interception altitudes well above 100,000 feet (30 km) and ranges on
7568-515: Was possible, and suggested concentrating on a program of general rocket development instead. The introduction of German jet-powered bombers late in 1944 led to a re-evaluation of this policy, and on 26 January 1945 the Army Chief of Ordnance issued a requirement for a new guided missile system. The request was passed to Bell Labs , then a world leader in radar, radio control, and automated aiming systems (see Hendrik Wade Bode ). Bell accepted
7656-416: Was said to come from the root of aiazō αἰάζω which means "to lament", translating to "one who laments; mourner". Hesiod provided a different folk etymology in a story in his " The Great Eoiae ", where Ajax receives his name when Heracles prays to Zeus that a son might be born to Telemon and Eriboea: Zeus sends an eagle ( aetos αετός) as a sign, and Heracles then bids the parents call their son Ajax after
7744-513: Was the system tested at White Sands in 1953 and with its success, on 28 October 1953 ARAACOM directed that most deployments would use this option. The system used a basic building block with four above-ground launching stations over an underground battery with additional missiles. Missiles were raised to the surface on an elevator and then pushed, by hand, along rails to their launchers. Stations normally consisted of four to six of these basic building blocks. The first site to build their Nike I system
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