| SZD-17X Jaskółka L | |
|---|---|
| SZD-17x in the Polish Aviation Museum | |
| Role | Glider |
| National origin | Poland |
| Manufacturer | SZD |
| First flight | 9 March 1956 |
| Introduction | 1956 |
| Number built | 4 |
| Developed from | SZD-14x Jaskółka M[1] |
The SZD-17X Jaskółka L was a single-seat high-performance competition glider designed and built in Poland at Szybowcowy Zakład Doświadczalny (Glider Experimental Works) in Bielsko-Biała in 1955.
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The SZD-17X Jaskółka L (Swallow Laminar) drew on the experience gained from developing the SZD-11 and SZD-14X gliders combined with new laminar flow aerofoil sections and flaps, as well as provision for water ballast[1] and a fully retractable undercarriage[2]. Main designer was Tadeusz Kostia, main constructor Jan Dyrek[3]. Construction of the SZD-17X was of conventional wooden semi-monocoque fuselage and thick skinned wooden wings with wooden spars, retaining the Jerzy Rudlicki's butterfly tail of the SZD-14X. First flight of the SZD-17X took place at Bielsko airfield, flown by Adam Zientek, on 9 March 1956[3].
Four aircraft, (reg'n no.'s SP-1504 to SP-1507), were built for use in World Gliding Championships, but performance fell short of expectations.[4] Despite the disappointing performance, Tadeusz Góra was able to establish a cross-country speed record on 9 May 1956 whilst flying SP-1506.[4] SP-1506 was used until 1977, then it was given to the Polish Aviation Museum[5].
Data from http://www.piotrp.de/SZYBOWCE/pszd17.htm
General characteristics
Performance
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