The Soloviev D-30 is a Russian two-shaft low-bypass turbofan engine, officially referred to as a "bypass turbojet." The D-30 is well known[to whom?] for its distinctive whining noise on takeoff and at idle power. A supersonic afterburning version, the D-30F6, is used in the Mikoyan-Gurevich MiG-31 interceptor, while the non-afterburning civilian versions, the D-30Kp and D-30KU are used in the Ilyushin Il-62M and Tupolev Tu-154M airliners, and in the Ilyushin Il-76MD, TD heavy cargo aircraft.
[edit] Design and development
In the mid-1970s, the Soviet Union began the search for a high-speed interceptor to supplement and replace its MiG-25. The Mig-25 had two enormously powerful Tumansky R-15 turbojets, allowing Mach 3 speed at high altitudes, but the problem was their weak performance at low altitudes, not even sufficient to cross Mach 1 boundary. More acute problems stemmed from the tendency of the Foxbat's engines to break down at maximum throttle in high-speed situations.[1] A new engine, this time a low-bypass turbofan, was needed to power the new interceptor. The Mikoyan-Gurevich (MiG) design bureau contracted Soloviev (later Aviadvigatel, now Perm) to build such an engine, for the aircraft that would become known as the MiG-31.
Aviadvigatel came up with the D30-F6 turbofan. Capable of generating 9,500 kgf (20,900 lbf or 93 kN) dry thrust and 15,500 kgf (34,200 lbf or 152 kN) afterburning thrust, the engine gave MiG's new fighter a top speed exceeding 1,800 mph (2,900 km/h), and a maximum takeoff weight of 101,000 lb (45,800 kg). These powerful engines also allowed the large and complex fighter to attain supersonic speeds at low altitudes under 5,000 feet (1,500 m).
[edit] Applications
The D30-F6 is a very powerful engine, excessively powerful for most airframes. Therefore, its use has been very limited. The massive Aviadvigatels have only been used in two aircraft designs: the MiG-31 Foxhound, and the experimental Sukhoi Su-47 Berkut (formerly S-37).
[edit] Specifications (D-30KU-157)
Non-afterburning commercial D-30KU-154, utilized in the
Tupolev Tu-154.
Data from [2]
General characteristics
- Type: Twin-spool non-afterburning turbofan
- Length: 4.836 m
- Diameter: 57.3 in (1.46 m)
- Dry weight: 5082 lb (2305 kg)
Components
- Compressor: Axial, 3 stage fan/low pressure compressor, 11 stage high pressure compressor
- Combustors: Can-type
- Turbine: 2 stage high pressure turbine, 4 stage low pressure turbine
Performance
[edit] References
- ^ Barron 1980, pp. 169–171.
- ^ Gas Turbine Engines. Aviation Week & Space Technology Source Book. pg. 122.
- Jane's All The World's Aircraft 1995
[edit] External links
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