Lyulka AL-21 [SEP] designer
Lyulka AL-21
The Lyulka AL-21 is an axial flow turbojet engine created by the Soviet Design Bureau named for its chief designer Arkhip Lyulka.
Design and development.
The AL-21 is closely similar in technology to the General Electric J79 first flown in 1955, which was the first engine for supersonic flight, using a variable stator. 
It is generally described as being in the "third generation" of Soviet gas turbine engines which are characterized by high thrust-to-weight ratios and the use of turbine air cooling.
- Lycoming T702 (PLT27)
- Lycoming T53
- Lycoming T55
- Lycoming TF40
L Lyulka.
"Source:Gunston."
- Lyulka TR-1
- Lyulka AL-5
- Lyulka AL-7
- Lyulka AL-21
- Lyulka AL-31
- Lyulka TS-31M
M.
M M&D Flugzeugbau.
- M&D Flugzeugbau TJ-42
M MAB.
- MAB 4-cyl fan engine
- MAB 4-cyl in-line engine
M MacClatchie.
- MacClatchie X-2 Panther
M Macchi.
- Macchi MB.2 – 2.cyl 20