The IIL IS-8 was a two-seat sailplane designed by Iosif Șilimon and built in Romania in 1960. They served with Romanian gliding clubs.
The IIL IS-11 was an aerobatic, single seat glider, designed and built in Romania in 1959. It was built in small numbers.
The Zlín Šohaj series of club gliders began as a post World War II development of the DFS Olympia Meise. A large number were built in the 1940s and '50s.
The MIP Smyk, MIP from the initials of its Polish designers with Smyk meaning Brat or Kid, was an aerodynamically refined motor glider designed and built at Warsaw Technical University from 1935.
The ITS-8 was a Polish twin-boom motor glider flown in 1936. Two prototypes were completed but production was prevented by the German invasion of Poland in 1939.
The one-off, experimental Czerwiński CW IV was a Polish high performance glider and the nation's first two-seater. It set several national records and influenced later Polish designs.
The Czerwiński CW 5bis was a Polish high performance sailplane, produced and developed between 1933 and 1935. It set several national records, competed at both national and international level and remained a Polish gliding club mainstay until the outbreak of World War II.
The ITS-II was a Polish intermediate training glider. Only about five were built as it was soon outclassed by newer Polish aircraft but some were used until 1935. ITS-IIs were used in early training courses on air towing and another gave the first demonstration of glider aerobatics in Poland. It was also used to set one national record.
The Blaicher B.1 was a Polish glider first flown in 1934. It was intended to fill an intermediate trainer role, but offered no advance on existing aircraft and only the prototype was completed.
The Czerwiński CW 7 was a Polish aerobatic glider first flown in 1934. Despite a structural weakness that prevented inverted flight, a small batch of CW 7s were used by several aeroclubs until the start of World War II.
The Czerwiński CW 8 was a mid-1930s Polish open-frame basic training glider. Its design was advanced and its price low, but its stalling characteristics were too dangerous for beginners, so the thirty-plus examples completed were rapidly withdrawn from use. Two were subsequently modified, one with greater span and the other with a small engine.
The ITS-IVB was a 1930s Polish two seat research sailplane designed to gather meteorological and airframe stress data. The sole example remained in service up to outbreak of World War II.
The Tarczyński and Stępniewki TS-1/34 Promyk was a Polish short span, high performance sailplane from the mid-1930s and was the first Polish sailplane equipped with flaps. Its construction was delayed by a financial crisis and its development terminated by World War II.
The PWS-101 was a high performance Polish glider first flown in 1937. One made the longest distance glider flight in Europe in 1938, gathering prizes for aircraft and pilot.
The PWS-102 Rekin was a progressive development of the PWS-101, intended for cross-country flights. The prototype flew in an international contest in 1939 and the first of a projected production series was flown before the start of World War II.
The PWS-103 was a high performance, Polish 15 m span sailplane developed from the longer-span PWS-102 just before World War II.
The Grzeszczyk SG-3 was a Polish single-seat, high performance sailplane first flown in 1933. Between 1934 and 1937 it was Poland's most successful competitor and record setter; about twenty-five were completed.
The Warsztaty Szybowcowe Sroka, or Kocjan Sroka after its designer, was a Polish intermediate training glider. About sixty were built between 1934 and 1939.
The Warsztaty Szybowcowe Mewa was a Polish, high performance, two seat sailplane flown in 1936 and built in small numbers.
The Warsztaty Szybowcowe SG-7 was a Polish high performance, single seat sailplane. Two prototypes flew in 1937 but, outperformed by their contemporaries, no more were built.
