Rubik R-08 Pilis (Tonsure)

A reduced-scale single-seat version of Szittya, 1938, 210 built

Variants:
R-08a – gull-wing, curvaceous semi-monocoque plywood fuselage, 1 built 1939
R-08b – simplified fuselage structure, 5 built 1938/39
R-08c – Gull replaced with pylon-mounted wing, 1939, 70 built
R-08d – An improved version with airbrakes & removeable canopy, 1943, 193 built postwar

Rozum-Bechiny 1910 monoplane

Designed by the Czech engineers Rozum and Bechyne and built by Emil Rudawski and Co. in Krakow. The construction of the aircraft was completed in April 1910. It was equipped a 40 hp air-cooled radial engine of their own design, one of the first Polish aircraft engines. It was presented at the factory on 4 April and the first flight was announced on 5 May.

In 1910 Pole Rozum and Czech Bechiny built in Kraków, Poland, an aircraft broadly modelled after Bleriot XI and with engine of their own design. Static tests of the engine and airplane were apparently successful, but it’s unclear if there were any flights made on it.