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1957 - Uragan-5 Interceptor

On March 7 and 21, 1957, respectively, the Resolution of the Council of Ministers of the USSR and the Order of the MAP, where a number of experimental design bureaus (including OKB-155 , AI Mikoyan and OKB-51PO Sukhoi) once again clarified the task and corrected the production time and presentation for testing of individual elements of the interception system "Uragan-5" and the complex as a whole. In particular, it was required to build 5 interceptor fighters (2 aircraft with a K-7s missile system, 2 aircraft with mobile cannon units and 1 with a K-6v system) and submit them to joint tests with the Ministry of Defense in the fourth quarter of 1958.

The autonomous factory flight tests of a fighter with the K-6v system were to be carried out in the first quarter of 1958, and with cannon installations in the second quarter. The duration of the flight of the aircraft was to ensure the defeat of the enemy bomber at a distance of at least 100-120 km from the point of departure when using a preliminary warning from the air defense system. By this time, the designers of radar equipment based on the onboard stations used in the Uragan-1 system managed to design a more advanced radar "Uragan-5B" with an autopilot "Uragan-5V" and an on-board computer "Uragan-BD".

In the beginning of 1958, experts from the experimental design bureaus of PO Sukhoi and AI Mikoyan jointly with TsAGI, CIAM OKB AMLyulka and SK Tumansky checked preliminary estimates of the duration of horizontal flight at high altitude of the main interceptor fighters with engine P-15-300 or AL-11. At the end of April, these works were completed. The resolution of the Central Committee of the CPSU and the Council of Ministers of the USSR of June 4, 1958 gave an assignment for the design and construction of a T-3A interceptor (refered to it as the T-37 according to the factory code). This carrier aircraft for the interception of air targets T-ZA-9 should have exceptionally high performance characteristics.

Sukhoi's T-37 and the MiG E-150 were similar, as they were designed for the same engine. The T-37 complex was intended for detection, interception and destruction of air targets - day and night, in simple and difficult weather conditions, in the range of target heights of 10-25 km and velocities of 1000-2500 km / h (by firing the fighter into the front or rear hemispheres). The probability of pointing to rectilinearly flying air targets in the entire range of altitudes and speeds should be at least 0.7-0.8. The probability of destroying the target with two K-9 projectiles under any foreshortening - both for automatic piloting of a fighter and for piloting by hand - was assumed to be 0.8-0.9.

The range of the complex when intercepting an air target at the maximum altitude of combat use was 400 km. The complex provided for the automatic withdrawal of the fighter from the attack, driving it to the aerodrome and landing with the on-board computer of the BVU and autopilot. The ground-based Luch-1 guidance station was to take the fighter into the target area with a precision of plus or minus 10 and, at the same time, to automatically turn the antenna of the airborne radar to the target, target detection, capture and its automatic tracking.




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