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米格-21与米格-21Φ1957年底,前线歼击机E-5已正式命名为米格-21,其主要的飞行试验业已完成,而带后掠翼的类似试验机E-2A的试验工作实际已经停止,已制成的几架E-2A型飞机主要用作飞行试验台。不过,E-5(米格-21)并未立即投入成批生产,E-5的试验机继续试验。1958年5月,E-5试验机的试验全部结束。主要试验了M<1.85、飞行高度18000米的三角翼歼击机的气动力特性。不久前,用E-4试验机试验了尾旋和M<1.45的气动力特性。E-5试验机总共试飞了98次,E-4试飞了100多次,而带后掠翼的试验机E-2和E-2A则试飞了250次。
MiG-21 and MiG-21Φ At the end of 1957, the front-line fighter E-5 was officially named the MiG-21 and its main flight test was completed. The experimental work on a similar Tester E-2A with a swept-back wing actually To stop, has made several E-2A aircraft mainly used for flight test stand. However, E-5 (MiG -21) did not immediately put into mass production, E-5 testing machine to continue the test. May 1958, E-5 testing machine test all over. The main test of the aerodynamic characteristics of the delta wing fighter M <1.85, flight altitude 18000 meters. Not so long ago, the spin-on and the aerodynamic characteristics of M <1.45 were tested with an E-4 tester. A total of 98 E-5 test flights were conducted, more than 100 E-4 tests took place, and E-2 and E-2A with swept-back wings were tested 250 times.