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SAMUM.RU

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  1. This machine (MiG-21SMT (type 50)), which differed from its predecessor by a large overhead fuel tank, appeared in early 1971. Thanks to this , the fuel reserve was increased to 3250 liters . At the beginning, an overhead fuel tank with a capacity of (900L) was installed on the MiG-21SMT. The tank is divided by a hermetic barrier into two compartments: the front with a capacity of 650L and the rear with a capacity of 250L. The rear compartment is produced simultaneously with the wing tanks-compartments. On MiG-21SMT aircraft with serial number 50-MM07, an overhead fuel tank with a capacity of 530 liters was installed. The design of which is similar to a similar tank on aircraft types "50 bis" and "75". To compensate for the increased weight, the R13F-300 engine was installed with an emergency mode. This made it possible to increase thrust by 1,900 kgf in flight near the ground at the speed of sound compared to the first afterburner mode of the P13-300 engine. The armament consisted of one built-in GSH-23L cannon, K-13 or R-60 and R-60M air-to-air missiles for close combat and/or UB-16 and UB-32 NURS units, C-24 unguided air-to-ground missiles, bombs. In 1971, the Gorky Aviation Plant produced the first 116 serial machines (type "50"). But the hopes pinned on her by the military did not materialize. Heavy, with noticeably deteriorated maneuverability, the fighter was released in the amount of 281 pieces and did not leave a noticeable trace in aviation.
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