The Lyulka AL-7 was a
turbojet
The turbojet is an airbreathing jet engine which is typically used in aircraft. It consists of a gas turbine with a propelling nozzle. The gas turbine has an air inlet which includes inlet guide vanes, a compressor, a combustion chamber, and ...
designed by
Arkhip Mikhailovich Lyulka
Arkhip Mikhailovich Lyul'ka (''Russian'': Архи́п Миха́йлович Лю́лька, ''Ukrainian'': Архип Михайлович Люлька) (1908–1984) was a Soviet scientist and designer of jet engines, head of the OKB Lyulka, ...
and produced by his
Lyulka
Lyulka was a USSR aero engine design bureau and manufacturer from 1938 to the 1990s, when manufacturing and design elements were integrated as NPO Saturn based at Rybinsk. The Lyulka design bureau had its roots in the "Kharkiv Aviation Institute" ...
design bureau. The engine was produced between 1954 and 1970.
[Gunston 1989, p.100.]
Design and development
The AL-7 had
supersonic
Supersonic speed is the speed of an object that exceeds the speed of sound ( Mach 1). For objects traveling in dry air of a temperature of 20 °C (68 °F) at sea level, this speed is approximately . Speeds greater than five times ...
airflow through the first stage of the
compressor
A compressor is a mechanical device that increases the pressure of a gas by reducing its volume. An air compressor is a specific type of gas compressor.
Compressors are similar to pumps: both increase the pressure on a fluid and both can transp ...
. TR-7 prototype, developing 6,500
kgf KGF or ''kgf'' may refer to:
*Keratinocyte growth factor
*King George's Fields, UK, recreation grounds
*Kolar Gold Fields
*The IATA code for Sary-Arka Airport, Karaganda, Kazakhstan
* ''K.G.F'' (film series), Indian Kannada-language film series
* ...
(14,330
lbf, 63.7
kN) of
thrust
Thrust is a reaction force described quantitatively by Newton's third law. When a system expels or accelerates mass in one direction, the accelerated mass will cause a force of equal magnitude but opposite direction to be applied to that syst ...
, was tested in 1952, and the engine was initially intended for
Ilyushin
The public joint stock company Ilyushin Aviation Complex, operating as Ilyushin (russian: Илью́шин) or as Ilyushin Design Bureau, is a former Soviet and now a Russian aircraft manufacturer and design bureau, founded in 1933 by Sergey Vl ...
'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.
[Green, William and Gordon Swanborough. ''The Great Book of Fighters.'' St. Paul, Minnesota: MBI Publishing, 2001. .] Later, the engine was adopted for the
Tu-128 'Fiddler' in 1960, and for the
AS-3 'Kangaroo' cruise missile. The
Beriev Be-10
The Beriev Be-10, also known as Izdelye M, (NATO reporting name: Mallow) was a twin engined, turbojet powered, flying-boat, patrol bomber built by the Soviet Union from 1955. The Be-10 is sometimes referred to as the M-10, though this designatio ...
jet
flying boat
A flying boat is a type of fixed-winged seaplane with a hull, allowing it to land on water. It differs from a floatplane in that a flying boat's fuselage is purpose-designed for floatation and contains a hull, while floatplanes rely on fusela ...
used a non-afterburning AL-7PB with
stainless steel
Stainless steel is an alloy of iron that is resistant to rusting and corrosion. It contains at least 11% chromium and may contain elements such as carbon, other nonmetals and metals to obtain other desired properties. Stainless steel's corros ...
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
The Sukhoi T-49 was a prototype Soviet fighter aircraft.
Development
The Sukhoi T-49 was a modernized version of the Sukhoi Su-11 with new radar and modified armament. The project was officially launched on August 6, 1957. The maiden flight of ...
.
Specifications (AL-7F)
See also
References
Notes
Bibliography
* Gunston, Bill. ''World Encyclopedia of Aero Engines''. Cambridge, England. Patrick Stephens Limited, 1989.
External links
AL-7 on LeteckeMotory.cz(cs)
{{Lyulka aeroengines
AL-7
The AL-7 is a Soviet assault rifle designed by Izhmash engineer Yury Aleksandrov in the early 1970s. The AL-7 uses a type of operation developed by Pyotr Tkachyov of TsNIITochMash (Central Institute for Precision Machine Building) in the mid ...
1950s turbojet engines