Lyulka AL-7

AL-7
AL-7
	Lyulka AL-7F turbojet engine at the Polish Aviation Museum
Type	Turbojet
Manufacturer	Lyulka
First run	1952
Major applications	Sukhoi Su-7; Sukhoi Su-9; Sukhoi Su-11; Tupolev Tu-28; Beriev Be-10; Kh-20;

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]^{[clarification needed]} 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.

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.

Data from ^{[citation needed]}

↑ Gunston 1989, p.100.
↑ Green, William and Gordon Swanborough. The Great Book of Fighters. St. Paul, Minnesota: MBI Publishing, 2001. ISBN 0-7603-1194-3.

Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9