The UTVA Aero 3 was a piston-engined military trainer aircraft built in Yugoslavia to replace the Ikarus Aero 2 then in service. One hundred ten were built, in Yugoslav Air Force service from 1958 to mid-1970s. It was superseded by the UTVA 75.
The Aero A.26 was a Czechoslovakian military reconnaissance biplane aircraft built by Aero Vodochody in the 1920s. It was Aero's last design to be based on the Hansa-Brandenburg B.I aircraft that the company had been building under licence during World War I as the Ae.10.
The Aero A.32 was a biplane built in Czechoslovakia in the late 1920s for army co-operation duties including reconnaissance and tactical bombing. While the design took the Aero A.11 as its starting point, the aircraft incorporated significant changes to make it suited for its new low-level role.
The Aero A.100 was a biplane light bomber and reconnaissance aircraft built in Czechoslovakia during the 1930s. It was the final step in a design lineage that extended back to the Aero A.11 a decade earlier. A.100s remained in service throughout World War II and for a few years postwar.
The Aero A.300 was a Czechoslovak bomber aircraft that first flew in 1938 as a much refined development of the A.304. It was designed by Aero to meet a requirement for a bomber-reconnaissance aircraft for the Czechoslovak Air Force, the Aero A-304 transport/bomber formed the basis for its design. It was a four-seat aircraft powered by two Bristol Mercury IX radial engines. The A-300 was faster than any other Czechoslovak aircraft in the inventory except for the Avia B-35 fighter. Despite showing much promise, development and production of the aircraft was stopped by the German occupation of Czechoslovakia.
The Yakovlev Yak-26, OKB designation Yak-123, was a Soviet tactical supersonic bomber aircraft flown at the Tushino air show on 24 June 1956. The model did not enter service.
PZL.46 Sum (sheatfish) was a light bomber of the Polish Air Force before World War II, which, was directed to serial production in the spring of 1939. These planes were in production, but the Polish industry did not manage to produce them before the outbreak of the war.
The PWS-19 was a Polish reconnaissance and bomber plane prototype of the 1930s, constructed in the PWS.
The Ambrosini SAI.207 was a light fighter interceptor and developed in Italy during World War II. Developed from the pre-war SAI.7 racing aircraft it was built entirely from wood, Powered by a single 750 hp Isotta Fraschini Delta, the SAI.207 enjoyed limited success during evaluation of the 12 pre-production aircraft.
The Breda A.7 was a reconnaissance aircraft developed in Italy for use by the Regia Aeronautica in 1929. It was a braced parasol monoplane of conventional configuration with tailskid undercarriage. The pilot and observer sat in tandem, open cockpits. A single prototype of a long-range example, originally designated A.7 Raid and later A.16 was also constructed, but the air force showed no interest in it.
The Caproni Ca.165 was an Italian biplane fighter developed just before World War II, but produced only as a prototype, as the competing Fiat CR.42 Falco was selected for series production.
The Piaggio P.32 was an Italian medium bomber of the late 1930s, produced by Piaggio, and designed by Giovanni Pegna. It was a modern design for its time, but was a failure due to lack of powerplants commensurate with its high wing loading.
PZL M-2 was a Polish trainer aircraft prototype of 1958, a low-wing monoplane with fixed gear. Designed at WSK-Mielec, it did not enter production.
The Caproni Vizzola F.4 was an Italian fighter aircraft prototype that was designed in 1937 and built from 1939. It was a single-seat, low-wing cantilever monoplane with retractable landing gear.
The Caproni Ca.331 Raffica was an Italian aircraft built by Caproni in the early 1940s as a tactical reconnaissance aircraft/light bomber and also as a night fighter.
The Piaggio P.50 was an Italian prototype heavy bomber designed and built by Piaggio for the Regia Aeronautica.
The Breda CC.20 was an Italian heavy bomber prototype of 1929 designed and built by the Breda company.
The CASA III was a 1920s Spanish two-seat monoplane, designed by Luis Sousa Peco and built by Construcciones Aeronáuticas SA (CASA) at Getafe near Madrid.
The Caproni Ca.95 was a large, three engine, long range, heavy bomber prototype built in Italy in 1929. It could carry a 1,600 kg (3,500 lb) bomb load and had three defensive gun positions. Only one was built.
The Caproni Ca.146 was a high-wing reconnaissance aircraft built by Caproni in the mid-1930s.
