Sunday, July 21, 2013

Aircraft walkaround vol.23: Sukhoi SU-22M4 Fitter-K

Sukhoi SU-22M4 Fitter-K
Flugausstellung L.+P. Junior, Hermeskeil II, Germany, 2012
The SU-17M4 (SU-22M4) was the final production version with considerably upgraded avionics, including RSDN navigation (similar to LORAN), beacon navigation, inertial navigation, a more powerful (Klyon) "Kлён-54" laser rangefinder, radio compass, and SPO-15LE ("Sirena") radar-warning system, additional fuselage inlets (including ram-air inlet at the base of the fin) to improve engine cooling airflow and fixed air intake shock cone. Many aircraft were equipped for the use of TV-guided missiles and BA-58 Vjuga pod for anti-radiation missiles. The engine was the AL-21F-3. Export version was designated Su-22M4 (factory S-54K). The first flight was on 19 June 1980 with Yu. A. Yegorov at the controls. Su-17M4 was manufactured from 1981 to 1988, and Su-22M4 from 1983 to 1990.

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