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PZL-Okecie PZL-104 Wilga 35
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D-ELGA PZL-Okecie PZL-104 Wilga 35A c/n 21930951 - ACZ Aero-Club-Zwickau e.V. - Flugplatz Zwickau in Germany - 7 August 2014 PZL-106AR Kruk DDR-TAB

The PZL-104 Wilga 35A is a single engine, four-seat, highwing, general-pupose STOL aircraft built by PZL (Patowe Zaklady Lotnicze) "Warszawa-Okęcie". Studies for a four-seat general-purpose monoplane as successor of the in Poland under license built Yakovlev Yak-12M and the PZL-101 Gawron started in the late fifties, and resulted in the early sixties in the designing of the PZL-104 Wilga (Thrush or Golden Oriole). In 1961, production of the PZL-104 Wilga prototype started and this experimental Wilga 1 flew first on 24 April 1962.This experimental prototype was powered by a Narkiewicz WN-6 six-cylinder horizontally-opposed engine. The Wilga 1 prototype exposed a number of serious design faults, that resulted in an airframe review that thoroughly redesigned the aircraft. Retaining major structural elements and successful sub-assemblies from the cantilever wings in the initial design, a completely new slimmer, strengthened fuselage was added that also offered an excellent rear view aspect for the crew during glider towing operations, and the side doors were re-engineered to open upwards for better aero observation or parachute jump sorties. The prototype of the redesigned PZL-104 Wilga 2 flew first on 5 August 1963. Five versions of the Wilga 2 were projected, including the Wilga 2A glider-tug; the Wilga 2P general-purpose fouw-seater; the Wilga 2S ambulance; and the Wilga 2R agricultural aircraft. A version added was the Wilga 2C, the export variant with a 225 hp Continental O-470 engine proposed to manufacture under the name Lipnur Gelatik (Rice Bird) under licence in Indonesia as in 1961 a contract was signed between PZL- Okęcie in Warzaw and Lembaga Persiapan Industri Penerbangan (LAPIP) in Bandung concerning the production of the PZL-104 Wilga in Indonesia. In fact, the prototype PZL-104 Wilga 2 was followed by a short production run Wilga 2 variants, later converted to the Wilga C and Wilga 3 configurations. With the PZL-104 Wilga developing over the years, the aircraft was in continuous production from 1962 to 2010. The main variants of the PZL-104 are the Wilga 2, Wilga 3, Wilga 3A, Wilga 3S, Wilga C, Wilga 32, Wilga 35, Wilga 35A, Wilga 35H, Wilga 35P, Wilga 80, PZL-104M Wilga 2000 and the Lipnur Gelatik. In service since 1967, it is Poland's most successful light aircraft development with over 1000 aircraft built.

PZL-Okecie PZL-104 Wilga 35A D-ELGA of the ACZ Aero-Club-Zwickau e.V. was seen at its home Flugplatz Zwickau during the Deutschen Meisterschaften im Segelflug. The 1993-built PZL-104 Wilga 35A was permitted to fly as D-ELGA in July 1993 and registered D-ELGA, the same year.

page last updated: 16-08-2014
Copyright © Jack Wolbrink, Emmen, the Netherlands

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