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PWS-19

The PWS-19 was a Polish reconnaissance and bomber aircraft prototype of the 1930s. 

Only one prototype was built.

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.

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).

Specifications

Crew

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 take-off weight

2,185 kg (4,817 lb)

Powerplant

1 × Pratt & Whitney Hornet T2,

9-cylinder air-cooled radial piston engine,

391 kW (525 hp) (nominal)

Propellers

2-bladed fixed-pitch propeller

Performance

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) bombs.

 

 

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