Mikoyan-Gurevich Je-155M

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Mikoyan-Gurevich Je-155M
Mikoyan Ye-266M (E-155M) 710 blue (8486481557) .jpg
Type: Experimental airplane
Design country:

Soviet Union 1955Soviet Union Soviet Union

Manufacturer:

Mikoyan-Gurevich

First flight:

July 12, 1973

Commissioning:

-

Number of pieces:

4th

Je-155M ( Russian Е-155М «Изделие 99» , product 99 ' ) describes the variant of the MiG-25 with the enhanced Tumanski R-15 BF2-300 engine. Four aircraft were built: the MiG-25M interceptor ( № 710 ) and three MiG-25RB reconnaissance aircraft № 401 , № 601 and № 703 . Under the designation Je-266M , № 601 and № 703 were used for record flights .

history

In 1972, investigations began to improve the parameters of speed, altitude, climb performance and range of the MiG-25. The Mach 3 threshold was to be overcome with more powerful variants of the engines and with the renunciation of aluminum in the structure .

The MiG-25M interceptor version (serial number 84-019175, Tumanski R-15BF-300 engine) was built in 1973 at the Gorki aircraft factory . After upgrading to the more powerful R-15BF2-300, the serial number was changed to 84-1710 (No. 710). After the first flight on July 12, 1973 with Pyotr Maximowitsch Ostapenko , Alexander Wassiljewitsch Fedotow , B. Orlow, A. Fastowez, N. Kononow and W. Ivanov flew by plane. The MiG-25M reached a speed of 3200 km / h in level flight with four Wympel-R-40M missiles at an altitude of 24,200 m. With a 15–20% higher maximum speed without armament, it is the fastest aircraft in history. Additional armament with Wympel-R-60M missiles and a GSch-23 automatic cannon was planned .

With the reconnaissance version MiG-25RB (No. 601), records for climbing times of 25, 30 and 35 kilometers were set on May 17, 1975. When taking off from Ramenskoye airfield , the Je-155M lifted off after 6 seconds with a take-off weight of around 24 t and achieved a maximum rate of climb of more than 500 m / s (for comparison MiG-29 : 330 m / s). After this record flight, the wings were dismantled there and attached to the MiG-25M (No. 710) and used for further flights until April 1977. Then the Je-155M project was terminated in favor of the Je-155MP (product 83) or MiG-31 .

The MiG-25RB with the number 703 was completed in February 1976. In July and August 1977 A. Fedotow set three height records in the FAI class C1 G3: 37,080 m with 1000 kg / 2000 kg payload and 37,650 m without payload. These records hold like the climb time records of No. 601. Attempts were also made to exceed the altitude record of the SR-71 - 25,929 m for 90 seconds. During a test flight, No. 703 flew briefly at an altitude of over 27 kilometers with test pilot A. Fastowets. Another record flight attempt was aborted at a speed greater than Mach 3 after damage to the aircraft structure due to overheating.

Technical specifications

Parameter Data
crew 1
length 22.3 m
span 14.1 m
height 6 m
Takeoff mass 36,000 - 41,000 kg
Top speed (with armament) 3200 km / h
Service ceiling (with armament) 24,200 m
Max. Altitude 37,650 m
Range at supersonic speed up to 2510 km
Engines two Tumanski R-15 BF2-300 jet engines
Thrust
  • with afterburner: 2 × 132.3 kN
  • without afterburner: 2 × 107.2 kN

Preserved copies

№ 710 in Chodynka field

After the last flight in April 1977, the Je-155M № 710 was parked on the Khodynka field and remained there from 1991 until the airfield was closed and the local aviation museum closed in 2003. After it was still on the airfield until 2012, WW Sadoroschni took over the plane in his private museum near Medyn ( Kaluga Oblast ). The other three Je-155M no longer exist.

See also

Web links

Individual evidence

  1. ↑ Рекорды МиГ-25 records MiG-25 at testpilot.ru (Russian)
  2. ↑ Е-155М (Е-266М) at testpilot.ru (Russian)