what model was dated before model s-18/vdr-3?
RTD-1/VDR-2
Model name Date Type Thrust (kg) / Power (eshp) Fitted to
RTD-1/VDR-2 1938 Two-stage centrifugal compressor Turbojet 500 kg estimated Test-bed only
S-18/VDR-3 1945 Axial flow compressor Turbojet 1,250 kg Gu-VRD project
TR-1 1946 8-stage Axial flow compressor Turbojet 1,300 kg Alekseyev I-21, Ilyushin Il-22, Sukhoi Su-10, Sukhoi Su-11
TR-1A 1947 8-stage Axial flow compressor Turbojet 1,500 kg
TR-2 1947 projected growth version of TR-1
TR-3 and AL-5 1949 7-stage Axial-flow Turbojet 4,600 kg (at qualification in 1950) Il-30, Il-46, Lavochkin Aircraft 190, Tu-86, Yak-1000, Su-17(1949), "Aircraft 150"
TR-7 1950s supersonic compressor prototype of the AL-7 Prototype for AL-7
AL-7 1954 9-stage supersonic compressor Turbojet 6,500 kg Il-54, Su-7B, Tu-98, Su
AL-21 1961 14-stage Axial compressor with variable stator blades 11,000 kg Yak-38, Tu-28/Tu-128, Su-17, Su-24
AL-31 1976 Twin-spool Turbofan 0.6 bypass ratio. 13,300 kg Su-27, Su-30, Su-34, Su-35, Su-47 Berkut
csv/203-csv/823.tsv