Lyulka AL-7 explained

The Lyulka AL-7 was a turbojet designed by Arkhip Mikhailovich Lyulka and produced by his Lyulka design bureau. The engine was produced between 1954 and 1970.^[1]

Design and development

The AL-7 had supersonic airflow through the first stage of the compressor. TR-7 prototype, developing 6,500 kgf (14,330 lb_f, 63.7 kN) of thrust, was tested in 1952, and the engine was initially intended for Ilyushin's Il-54 bomber. The afterburning AL-7F version was created in 1953. In April 1956, the Sukhoi S-1 prototype, equipped with the AL-7F, exceeded Mach 2 at 18,000 m (70,900 ft), which led to the production of the Su-7 "Fitter" and Su-9 "Fishpot", equipped with this engine.^[2] Later, the engine was adopted for the Tu-128 "Fiddler" in 1960, and for the AS-3 "Kangaroo" cruise missile. The Beriev Be-10 jet flying boat used a non-afterburning AL-7PB with stainless steel compressor blades.

Variants

AL-7:Non-afterburning military turbojet.

Al-7F: Afterburning versions of the AL-7F, typically, the AL-7F1-100 used in the Sukhoi T-49.

References

Bibliography

• Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989.

External links

• AL-7 on LeteckeMotory.cz (cs)

Notes and References

1. Gunston 1989, p.100.
2. Green, William and Gordon Swanborough. The Great Book of Fighters. St. Paul, Minnesota: MBI Publishing, 2001. .