WSK SO-3

SO-1/SO-3
SO-3W engine on display at the Polish Aviation Museum
Type	Turbojet
National origin	Poland
Manufacturer	WSK PZL Rzeszów
First run	November 1948
Major applications	PZL TS-11 Iskra
Number built	580

The WSK SO-1 and WSK-SO-3 are Polish turbojet engines designed by the Instytut Lotnictwa (Institute of Aeronautics ) and manufactured by WSK PZL Rzeszów, to power the PZL TS-11 Iskra jet trainer. Thirty SO-1s were built, this being superseded by the improved SO-3, of which a further 580 were built. The engine has a seven-stage compressor, annular combustion chambers, and a single-stage turbine.

Data from Jane's All The World's Aircraft 1988-89.

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