The RWD 5 was constructed by the RWD team of Stanisław Rogalski, Stanisław Wigura and Jerzy Drzewiecki. It was a further development of earlier RWD aircraft series, especially of its direct predecessor, the RWD 4. It shared the same wing shape and construction, while the fuselage was totally new, constructed of steel frame, unlike its wooden predecessors. The fuselage had a modern shape and a closed canopy with panoramic windows. The first prototype was flown on 7 August 1931 by its designer Jerzy Drzewiecki. It was built in new workshops of Warsaw University of Technology near Okęcie airport, from 1933 converted to Doświadczalne Warsztaty Lotnicze company. After successes of the prototype in air competitions, a small-scale series production was set up, mostly for the Polish Aero Club. Series aircraft had improved landing gear. Two were built in 1932, five in 1933, eleven in 1934 and one more in 1937, for a total of 20 aircraft. In 1932, the RWD 5 was shown at the International Air Show in Paris.
Service
RWD 5s were mostly used as trainers and sport planes by Polish regional aero clubs. They scored good results in local competitions, starting from 1931, when the prototype won the 3rd South-Western Poland Flight and the 4th Touring Aircraft Contest. As sport and touring planes, they were later superseded by the RWD 13, and were relegated mostly for training. Three were written off before 1939. One aircraft was used by LOT Polish Airlines in 1933–1936 for taxi flights, one by LOPP organization. After the outbreak of World War II, during the Polish September Campaign, at least three RWD 5 were utilized as liaison aircraft by the Polish Air Force. Also, Maj. E. Wyrwicki flew RWD 5 from Romania to besieged Warsaw. None of the RWD 5s survived the war. One RWD 5 was sold to Brazil in 1938 and registered there as PP-TDX in 1939. Its airworthiness expired in 1943. In late 1990s, a flying replica of the RWD 5, named RWD 5R, was built in Poland by EEA991 association. It flew first on 26 August 2000, and is powered with 140 hp LOM Praha Avia M-332 engine.
In March 1933 a special single-seater variant was built, called RWD 5bis, powered with 130 hp Gipsy Major engine. The rear cabin was replaced with an additional 300 l fuel tank, and the windows were removed. Additional fuel tanks were added in wings, the fuel capacity reached 752 l in total and a range increased to. Stanisław Skarżyński flew this plane from Warsaw to Rio de Janeiro from 27 April to 24 June 1933, on a path of. During his travel, on 7 May/8 May, Skarżynski flew the RWD 5bis across the southern Atlantic, from Saint-Louis, Senegal to Maceio in Brazil. The flight took 20 hours 30 minutes. He crossed, establishing a distance record in the FAI light tourist plane class. The RWD 5bis was at that time the smallest plane that has ever flown across the Atlantic — its empty weight was below 450 kg, loaded 1100 kg. The plane had no radio nor safety equipment, due to weight. It returned to Europe on a ship. After its record-breaking flight, the RWD 5bis was converted to a two-seater variant without additional tanks, and used by Skarżyński. The SP-AJU was seized by the Soviets in Lwów in September 1939, after their invasion on Poland.
Description
Mixed construction high-wing cantilevermonoplane, conventional in layout. The fuselage of a steel frame, covered with canvas on a wooden frame. Trapezoid one-part wing, canvas covered, two-spar, with no mechanization. A crew of two, sitting in tandem in a glazed cockpit, with dual controls and individual doors on the right. Conventional fixed landing gear, with a rear skid, wheels in teardrop covers on serial aircraft. Engine in front, with tractor two-blade wooden propeller of a fixed pitch. A variety of 4-cylinder air-cooled inverted straight engines were used, most typically Cirrus Hermes IIB nominal power and 115 hp. Used also were 130 hp Hermes IV or de Havilland Gipsy III, or 120 hp Walter Junior 4. The RWD 5bis and RWD 5 SP-LOT had a 130 hp de Havilland Gipsy Major.
