PZL Rzeszów SO-3 explained

The PZL Rzeszów SO-1 and PZL Rzeszów 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 Thirty SO-1s were built, this being superseded by the improved SO-3, of which a further 580 were built.^[1] The engine has a seven-stage compressor, annular combustion chambers, and a single-stage turbine.

Variants

SO-1

Original production. Overhaul life 200 hours.

SO-3

Improved version of SO-3, intended for tropical use. Modified compressor, combustion chamber and turbine. Overhaul life 400 hours.^[2]

SO-3W22

Modified version for PZL I-22 Iryda, 10.79 kN (2,425 lbf) rating, renamed PZL-5.^[3]

Applications

• PZL TS-11 Iskra
• PZL I-22 Iryda

References

• Lambert, Mark. Jane's All The World's Aircraft 1993-94. Coulsdon, Surry, UK:Jane's Data Division, 1993. .
• Taylor, John W. R. Jane's All The World's Aircraft 1988-89. Coulsdon, Surry, UK:Jane's Defence Data, 1988. .
• Taylor, Michael J. H. Brassey's World Aircraft & Systems Directory 1996/97. London:Brassey's, 1996. .

Notes and References

1. Lambert 1993, p.630.
2. Web site: Silnik lotniczy do TS-11 ISKRA . AMW - Agencja Mienia Wojskowego . 2010-01-24 . https://web.archive.org/web/20110723173813/http://www.amw.com.pl/zos_product_info.php?zos_products_id=59 . 2011-07-23 . dead .
3. Taylor 1996, p.572.

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