1960 The power plant R- 15-300 afterburner turbojet engine of MIG -25 was tested with the modified engine flight test verification machine E- 150. In April of the following year, the second verification machine E- 152 went to heaven. Subsequently, the third verification machine E-15B-300 was put into flight test.
1961March 10, mikoyan signed an order to develop the MiG -25 prototype E- 155. 1962 the validation Committee of the full-scale prototype of the reconnaissance plane held a validation meeting. 196365438+February MiG-25 (reconnaissance type) E- 155R- 1 The first prototype was delivered from the factory.1On March 6, 964, the famous Soviet test pilot fedotov took off for the first time. On September 9th of the same year, the second prototype (interceptor) E- 155P- 1 started the test flight. Then the third prototype (reconnaissance type) E- 155R-3 also participated in the test flight. Each of the three prototypes is equipped with two R- 15B-300 engines, and during the period of 1965~ 1977, the world records of eight flying speeds, nine flying heights and six climbing times were set with the code E-266. 1in July, 1967, four MIG -25 pre-production models made their first public flight show at the Soviet Aviation Festival review held at Tushino Airport in Moscow.
1968, the coach MIG -25 began its test flight. In order to simplify the design, the coach cabin is located in front of the original cockpit, thus limiting the design modification to the front fuselage. Therefore, the nose radar and weapons were cancelled.
1969 and 1970 R and p have passed the national acceptance and put into production. It was delivered to the troops in May 1972 and February 12 respectively. 197 1 MIG -25RB, an improved reconnaissance plane, was put into production, and later all R-models were modified according to it.
From June1976165438+10 to June 1978, the design bureau completed the design, manufacture, flight test and production of the modified MIG -25PD. In the following two years, all P-type aircraft serving in the army were modified according to PD type.
1984, MIG -25 was discontinued.