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==Development==
==Development==
The aircraft was designed by [[Władysław Zalewski]], as his tenth design (Zalewski had already constructed aircraft for the Russian Air Force during the [[World War I]]). Work started in 1923, and the first prototype was flown in August [[1926 in aviation|1926]]. Another airframe was built for static trials. Flight trials were successful: its performance was at least as good as the [[Breguet 19]], and better than the [[Potez 25]]. However, maintenance was more difficult.
The aircraft was designed by [[Władysław Zalewski]], as his tenth design (Zalewski had already constructed aircraft for the Russian Air Force during the [[World War I]]). Work started in 1923, and the first prototype was flown in August [[1926 in aviation|1926]]. Another airframe was built for static trials. Flight trials were successful: its performance was at least as good as the [[Breguet 19]], and better than the [[Potez 25]]. However, maintenance was more difficult.


In [[1927 in aviation|1927]], three pre-series aircraft were built (designated WZ-X/II, WZ-X/III, WZ-X/IV). The first two of these were fitted with the same Lorraine-Dietrich 12Eb 478 hp [[W engine]] used by the prototype, while the other had a [[Gnome et Rhône]] [[Bristol Jupiter|Jupiter 9a]] 530 hp [[radial engine]] with four-blade [[propeller (aircraft)|propeller]].
In [[1927 in aviation|1927]], three pre-series aircraft were built (designated WZ-X/II, WZ-X/III, WZ-X/IV). The first two of these were fitted with the same Lorraine-Dietrich 12Eb 478 hp [[W engine]] used by the prototype, while the other had a [[Gnome et Rhône]] [[Bristol Jupiter|Jupiter 9a]] 530 hp [[radial engine]] with four-blade [[propeller (aircraft)|propeller]].


The WZ-X did not enter serial production, because Poland had already bought many Breguet 19 aircraft from France, and started production under licence of the Potez 25 of the same class. Three WZ-Xs were given to aviation schools, where one or two survived in [[Dęblin]] until 1939.
The WZ-X did not enter serial production, because Poland had already bought many Breguet 19 aircraft from France, and started production under licence of the Potez 25 of the same class. Three WZ-Xs were given to aviation schools, where one or two survived in [[Dęblin]] until 1939.
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Wooden construction braced [[biplane]], conventional in layout. A fuselage was [[semi-monocoque]], elliptical in cross-section, plywood-covered. Rectangular two-spar wings, covered with canvas and plywood (in front), of equal span, slightly staggered. Ailerons on both wings, joined with struts. Strutted [[empennage]], covered with plywood (stabilizers) and canvas (rudder and elevators). Crew of two, sitting in [[tandem]] in open [[cockpit (aviation)|cockpits]], the first with a windshield. Conventional fixed [[landing gear]], with a rear skid, the main gear with a common axle. Inline engine in front, driving two-blade tractor wooden propeller, with two round Lamblin radiators under the fuselage (in the WZ-X/IV - radial engine, with four-blade propeller and no radiators). Fuel tank in the fuselage.
Wooden construction braced [[biplane]], conventional in layout. A fuselage was [[semi-monocoque]], elliptical in cross-section, plywood-covered. Rectangular two-spar wings, covered with canvas and plywood (in front), of equal span, slightly staggered. Ailerons on both wings, joined with struts. Strutted [[empennage]], covered with plywood (stabilizers) and canvas (rudder and elevators). Crew of two, sitting in [[tandem]] in open [[cockpit (aviation)|cockpits]], the first with a windshield. Conventional fixed [[landing gear]], with a rear skid, the main gear with a common axle. Inline engine in front, driving two-blade tractor wooden propeller, with two round Lamblin radiators under the fuselage (in the WZ-X/IV - radial engine, with four-blade propeller and no radiators). Fuel tank in the fuselage.


The pilot had two fixed 7.7 mm Vickers [[machine gun]]s with an [[Synchronization gear|interrupter gear]], the observer had twin 7.7 mm [[Lewis gun|Lewis]] machine guns on a ring mounting. Bomb load: unknown.
The pilot had two fixed 7.7 mm Vickers [[machine gun]]s with an [[Synchronization gear|interrupter gear]], the observer had twin 7.7 mm [[Lewis gun|Lewis]] machine guns on a ring mounting. Bomb load: unknown.


==Specifications ==
==Specifications ==
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}}
}}

==References==
==References==
{{Reflist}}
{{Reflist}}


*Andrzej Glass: "Polskie konstrukcje lotnicze 1893-1939" (''Polish aviation constructions 1893-1939''), WKiŁ, Warsaw 1977, p. 122-123 {{pl icon}}
*Andrzej Glass: "Polskie konstrukcje lotnicze 1893-1939" (''Polish aviation constructions 1893-1939''), WKiŁ, Warsaw 1977, p. 122-123 {{pl icon}}


==External links==
==External links==
{{commonscat|CWL WZ-X}}
{{commons category|CWL WZ-X}}
*[http://www.airwar.ru/enc/fww1/wzx.html Photos and drawings ] at [http://www.airwar.ru Ugolok Neba] site
*[http://www.airwar.ru/enc/fww1/wzx.html Photos and drawings ] at [http://www.airwar.ru Ugolok Neba] site

{{aviation lists}}


[[Category:Polish military reconnaissance aircraft 1920–1929]]
[[Category:Polish military reconnaissance aircraft 1920–1929]]

Revision as of 23:26, 23 June 2015

WZ-X
CWL WZ-X prototype, 1926
Role Reconnaissance aircraft
Manufacturer CWL
First flight August 1926
Introduction 1928
Retired 1939
Primary user Polish Air Force
Produced 1926-1927
Number built 4

The WZ-X was the Polish reconnaissance aircraft designed in the mid-1920s and manufactured in the Centralne Warsztaty Lotnicze (CWL) - Central Aviation Workshops in Warsaw. It was the first combat aircraft of own design built in Poland, in a small series.

Development

The aircraft was designed by Władysław Zalewski, as his tenth design (Zalewski had already constructed aircraft for the Russian Air Force during the World War I). Work started in 1923, and the first prototype was flown in August 1926. Another airframe was built for static trials. Flight trials were successful: its performance was at least as good as the Breguet 19, and better than the Potez 25. However, maintenance was more difficult.

In 1927, three pre-series aircraft were built (designated WZ-X/II, WZ-X/III, WZ-X/IV). The first two of these were fitted with the same Lorraine-Dietrich 12Eb 478 hp W engine used by the prototype, while the other had a Gnome et Rhône Jupiter 9a 530 hp radial engine with four-blade propeller.

The WZ-X did not enter serial production, because Poland had already bought many Breguet 19 aircraft from France, and started production under licence of the Potez 25 of the same class. Three WZ-Xs were given to aviation schools, where one or two survived in Dęblin until 1939.

Description

Wooden construction braced biplane, conventional in layout. A fuselage was semi-monocoque, elliptical in cross-section, plywood-covered. Rectangular two-spar wings, covered with canvas and plywood (in front), of equal span, slightly staggered. Ailerons on both wings, joined with struts. Strutted empennage, covered with plywood (stabilizers) and canvas (rudder and elevators). Crew of two, sitting in tandem in open cockpits, the first with a windshield. Conventional fixed landing gear, with a rear skid, the main gear with a common axle. Inline engine in front, driving two-blade tractor wooden propeller, with two round Lamblin radiators under the fuselage (in the WZ-X/IV - radial engine, with four-blade propeller and no radiators). Fuel tank in the fuselage.

The pilot had two fixed 7.7 mm Vickers machine guns with an interrupter gear, the observer had twin 7.7 mm Lewis machine guns on a ring mounting. Bomb load: unknown.

Specifications

Data from Glass, A. (1977)

General characteristics

  • Crew: 2, pilot and observer

Performance Armament

  • 2 fixed front-firing 7.7 mm Vickers machineguns
  • 2 movable 7.7 mm Lewis machineguns
  • light bombs

See also

Aircraft of comparable role, configuration, and era Breguet 19 - Potez 15 - Potez 25 - Aero A.32

References

  • Andrzej Glass: "Polskie konstrukcje lotnicze 1893-1939" (Polish aviation constructions 1893-1939), WKiŁ, Warsaw 1977, p. 122-123 Template:Pl icon