New model for self-bonding. Does not contain glue or paints. The Avia BH-33 was a Czechoslovak twin-plane mixed-engine fighter aircraft with fixed landing gear. It was powered by a single 500 hp Skoda L engine. The prototype flew in 1927 and mass production continued between 1928 and 1930, culminating in the production of approximately 235 aircraft. Armament consisted of 2 Vickers cal machine guns. 7.7mm. The BH-33 was created as a partly private initiative of Avia Air Company, which was to replace the Avia B-21 in Czechoslovak Aviation. The new aircraft featured better performance, was more maneuverable and generally technically successful. For these reasons, it quickly entered series production. It produced an all-metal version (BH-33E), which was produced in Yugoslavia. The BH-33L version, powered by a Skoda L engine, was the most numerous in the Czechoslovak Aviation. In 1928, the license to produce these aircraft in Poland was purchased by Podlaska Aircraft Factory (PWS), which used the Bristol Jupiter IV engine in their production. The aircraft from these plants served in the Polish aviation under the designation PWS-A. From 1933 they were moved to school and training units. During the September campaign, few PWS-As were already in service in school squadrons. Ilyushin Il-10 was a Soviet metal-structure assault aircraft in a low-wafer layout. The aircraft had a retractable, two-wheel chassis in a classic layout. The drive was provided by a single Mikulin-AM42 fork engine with a starting power of 2000 hp. The prototype flew on 27 September 1944 and serial production lasted from 1944 to 1947. Licensed production in Czechoslovakia under the designation Avia B-33 was also undertaken. The Il-10 was created as a far-reaching development of the very successful Il-2, which was one of the most important Soviet aircraft of the WW2 period. The new machine has improved performance (especially top speed), low-altitude maneuverability and reinforced the armour of the entire structure. The basic armament was 2 cal. 23mm and 2 caliber machine guns. 7.62mm or 4 cal. guns. 23mm. Added to this was the rifle in the turret at the back of the sludge cabin. 12.7mm and suspended armament weighing up to 600kg. The Il-10 aircraft was successfully used in the last operations of World War II, especially the Berlin operation in 1945, as well as during the Korean War (1950-1953) by the DPRK Air Force.