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MORI DocID: 895437 - TOP SECRET, U-2 Vulnerability Tests Vulnerability of the U-2 was tested against the '-102 and -104 fighters at Eglin AFB in December 1958. The tests were conducted under optimum controlled ground and air environment for the attacking pilot (i. e., out- standing pilots, isolated air space, ideal weather, pre-selected intercept point, etc. ). The F-104 cannot cruise at altitudes over 60, 000 feet, but it possesses a capability to convert speed to altitude and attain co-altitude of the U-2 for a period of less than 30 seconds. The F-104 was equipped with air-to-air missiles of the infra-red seeking variety and airborne radar that locates the aircraft and allows the pilot to visually acquire the target to complete the attack. The F-104 radar malfunctioned at high altitudes. The pilot of this fighter could not visually acquire the target in sufficient time to solve the fire control pr oblem. The F-102 all weather fighter con- sistently acquired the target and was able to solve the fire control problem for launching air-to-air missiles. To be successful, the missiles require outstanding high altitude performance and a slant range in excess of five miles, The performance of both aircraft exceeded the present capability of opera- tional Soviet fighters. The standard operational Soviet fighters cannot attain co-altitude of the U-2. A new fighter, the Fitter, of which an estim- ated 120 have been produced, is considered capable of co-altitude for a period of several seconds. It is not, however, presently considered operational. The standard Soviet all weather fighter, YAK-25/Flashlight, is considered capable of acquiring the U-2 on airborne radar. However, to complete a successful intercept would require an air-to-air missile with a slant range in excess of seven miles. The USSR is considered to have air-to-air missiles, however, there is no intelligence source that indicates that the missiles are operational. Conclusions 1. The F-104 can attain co-altitude, but the difficulty in visually acquiring the target makes any single attack a low probability of successful intercept. 2. The F-102 with its radar can acquire the U-2 and possesses the perfor- mance to solve the fire control problem, however, air-to-air missiles of outstanding performance and long range are required to accomplish airborne intercept. There is no known operational deployment of air-to-air missiles by the Soviets. 3. Successful intercept of the U-2 by the Soviet defensive fighters for the next few months is unlikely. TAD CEODET TOP CLUNLT

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This item focuses on the vulnerability of the U-2 spy plane to Soviet interception, the production and deployment of Soviet Intercontinental Ballistic Missiles (ICBMs), the risks of intelligence operations, and information gained from intelligence operations.

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12008631
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document
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    "ocrText": "MORI DocID: 895437\n-\nTOP SECRET,\nU-2 Vulnerability Tests\nVulnerability of the U-2 was tested against the '-102 and -104 fighters at\nEglin AFB in December 1958. The tests were conducted under optimum\ncontrolled ground and air environment for the attacking pilot (i. e., out-\nstanding pilots, isolated air space, ideal weather, pre-selected intercept\npoint, etc. ). The F-104 cannot cruise at altitudes over 60, 000 feet, but\nit possesses a capability to convert speed to altitude and attain co-altitude\nof the U-2 for a period of less than 30 seconds. The F-104 was equipped\nwith air-to-air missiles of the infra-red seeking variety and airborne radar\nthat locates the aircraft and allows the pilot to visually acquire the target\nto complete the attack. The F-104 radar malfunctioned at high altitudes.\nThe pilot of this fighter could not visually acquire the target in sufficient\ntime to solve the fire control pr oblem. The F-102 all weather fighter con-\nsistently acquired the target and was able to solve the fire control problem\nfor launching air-to-air missiles. To be successful, the missiles require\noutstanding high altitude performance and a slant range in excess of five\nmiles,\nThe performance of both aircraft exceeded the present capability of opera-\ntional Soviet fighters. The standard operational Soviet fighters cannot\nattain co-altitude of the U-2. A new fighter, the Fitter, of which an estim-\nated 120 have been produced, is considered capable of co-altitude for a period\nof several seconds. It is not, however, presently considered operational.\nThe standard Soviet all weather fighter, YAK-25/Flashlight, is considered\ncapable of acquiring the U-2 on airborne radar. However, to complete a\nsuccessful intercept would require an air-to-air missile with a slant range\nin excess of seven miles. The USSR is considered to have air-to-air missiles,\nhowever, there is no intelligence source that indicates that the missiles are\noperational.\nConclusions\n1. The F-104 can attain co-altitude, but the difficulty in visually acquiring\nthe target makes any single attack a low probability of successful intercept.\n2. The F-102 with its radar can acquire the U-2 and possesses the perfor-\nmance to solve the fire control problem, however, air-to-air missiles of\noutstanding performance and long range are required to accomplish airborne\nintercept. There is no known operational deployment of air-to-air missiles\nby the Soviets.\n3. Successful intercept of the U-2 by the Soviet defensive fighters for the\nnext few months is unlikely.\nTAD CEODET\nTOP CLUNLT"
}