The PWS-19 was a Polish reconnaissance and bomber plane prototype of the 1930s, constructed in the PWS (Podlaska Wytwórnia Samolotów - Podlasie Aircraft Factory).
The PWS-19 was constructed in 1930 in order to replace the French-designed bombers Potez 25 and Breguet 19 in the Polish Air Force. It was a development of the PWS-17, which remained unbuilt. Main designers were Zbysław Ciołkosz and Antoni Uszacki. It was planned to be produced in two variants: reconnaissance PWS-19A2 and bomber PWS-19B2. It was a conventional design, a strutted high-wing monoplane with quite elegant silhouette, open cockpits and fixed landing gear. It was fitted with double tailfins to obtain a good field of defense fire.
In 1934 Antoni Uszacki designed a smaller plane basing on the PWS-19, designated PWS U-6, with G-1620 Mors 400 hp engine. It participated in a contest for an army cooperation plane, but lost against RWD-14 Czapla and was not built.
Operational historyedit
The only prototype first flew in Biała Podlaska in September 1931. During tests it showed quite good flight characteristics, although the rudders had to be enlarged to improve manoeuvrability and stability. However, on March 17, in 1933, the wings distorted in a dive and the prototype crashed (killing an observer). The Air Force considered ordering the PWS-19A2 powered by a Bristol Pegasus engine, but at the same time, a more modern aircraft the PZL.23 Karaś had been developed by PZL - a low-wing monoplane of all-metal construction. As a result, works upon the PWS-19 stopped.
Descriptionedit
Mixed construction high-wing (parasol) monoplane. A fuselage of a steel frame, covered with duralumin in front section and canvas in mid and rear sections. Two-spar wings, of wooden construction, plywood covered. Stabilizers, rudder and elevator of metal construction, canvas covered. Twin vertical tailfins. Crew of two (pilot and observer/gunner) in open individual cockpits. Conventional fixed landing gear, with a rear skid. The plane was fitted with RKL/D radio and camera.
Engine: 9 cylinder air-cooled radial Pratt & Whitney Hornet T2 in front, with a Townend ring (there were optional Bristol Jupiter VII or Bristol Pegasus). Two-blade metal propeller of a fixed pitch. Fuel tank 420 L in a fuselage, dropped in emergency.
Armament: single fixed front-mounted 7.7 mm Vickers machinegun with an interrupter gear, in the right fuselage side, single 7.7mm Vickers on a ring mounting of the observer. Up to 250 kg bombs (maximum bomb size - up to 50 kg).
Glass, Andrzej (1977). Polskie konstrukcje lotnicze 1893–1939 (in Polish). Warsaw: WKiŁ.
External linksedit
Wikimedia Commons has media related to PWS-19.
Photos and drawings at Ugolok Neba
January 05, 2024
polish, reconnaissance, bomber, plane, prototype, 1930s, constructed, podlaska, wytwórnia, samolotów, podlasie, aircraft, factory, role, reconnaissance, bomber, planemanufacturer, pwsfirst, flight, september, 1931status, prototypeprimary, user, polish, forcenu. The PWS 19 was a Polish reconnaissance and bomber plane prototype of the 1930s constructed in the PWS Podlaska Wytwornia Samolotow Podlasie Aircraft Factory PWS 19Role Reconnaissance bomber planeManufacturer PWSFirst flight September 1931Status PrototypePrimary user Polish Air ForceNumber built 1 Contents 1 Development 2 Operational history 3 Description 4 Operators 5 Specifications 6 See also 7 References 8 Further reading 9 External linksDevelopment editThe PWS 19 was constructed in 1930 in order to replace the French designed bombers Potez 25 and Breguet 19 in the Polish Air Force It was a development of the PWS 17 which remained unbuilt Main designers were Zbyslaw Ciolkosz and Antoni Uszacki It was planned to be produced in two variants reconnaissance PWS 19A2 and bomber PWS 19B2 It was a conventional design a strutted high wing monoplane with quite elegant silhouette open cockpits and fixed landing gear It was fitted with double tailfins to obtain a good field of defense fire In 1934 Antoni Uszacki designed a smaller plane basing on the PWS 19 designated PWS U 6 with G 1620 Mors 400 hp engine It participated in a contest for an army cooperation plane but lost against RWD 14 Czapla and was not built Operational history editThe only prototype first flew in Biala Podlaska in September 1931 During tests it showed quite good flight characteristics although the rudders had to be enlarged to improve manoeuvrability and stability However on March 17 in 1933 the wings distorted in a dive and the prototype crashed killing an observer The Air Force considered ordering the PWS 19A2 powered by a Bristol Pegasus engine but at the same time a more modern aircraft the PZL 23 Karas had been developed by PZL a low wing monoplane of all metal construction As a result works upon the PWS 19 stopped Description editMixed construction high wing parasol monoplane A fuselage of a steel frame covered with duralumin in front section and canvas in mid and rear sections Two spar wings of wooden construction plywood covered Stabilizers rudder and elevator of metal construction canvas covered Twin vertical tailfins Crew of two pilot and observer gunner in open individual cockpits Conventional fixed landing gear with a rear skid The plane was fitted with RKL D radio and camera Engine 9 cylinder air cooled radial Pratt amp Whitney Hornet T2 in front with a Townend ring there were optional Bristol Jupiter VII or Bristol Pegasus Two blade metal propeller of a fixed pitch Fuel tank 420 L in a fuselage dropped in emergency Armament single fixed front mounted 7 7 mm Vickers machinegun with an interrupter gear in the right fuselage side single 7 7mm Vickers on a ring mounting of the observer Up to 250 kg bombs maximum bomb size up to 50 kg Operators edit nbsp PolandPolish Air ForceSpecifications editData from citation needed General characteristicsCrew 2 pilot observer gunner Length 9 17 m 30 ft 1 in Wingspan 14 5 m 47 ft 7 in Height 3 16 m 10 ft 4 in Wing area 29 m2 310 sq ft Empty weight 1 340 kg 2 954 lb Gross weight 1 950 kg 4 299 lb Max takeoff weight 2 185 kg 4 817 lb Powerplant 1 Pratt amp Whitney Hornet T2 9 cylinder air cooled radial piston engine 391 kW 525 hp nominal Propellers 2 bladed fixed pitch propellerPerformance Maximum speed 234 km h 145 mph 126 kn Cruise speed 190 km h 120 mph 100 kn Stall speed 99 km h 62 mph 53 kn Range 700 km 430 mi 380 nmi Service ceiling 7 200 m 23 600 ft Rate of climb 7 5 m s 1 480 ft min Wing loading 67 kg m2 14 lb sq ft Armament Guns 2 x 7 7 mm Vickers machine guns 1 forward firing 1 movable Bombs 250 kg 550 lb bombsSee also editAircraft of comparable role configuration and era Letov S 328 PZL 23 KarasReferences editFurther reading editGlass Andrzej 1977 Polskie konstrukcje lotnicze 1893 1939 in Polish Warsaw WKiL External links edit nbsp Wikimedia Commons has media related to PWS 19 Photos and drawings at Ugolok Neba Retrieved from https en wikipedia org w index php title PWS 19 amp oldid 1169470842, wikipedia, wiki, book, books, library,
