This MiG-21 is preserved at a school in Mokotow.

As the host nation, Poland fielded a sizeable contingent of five PZL.26s and six RWD-9s in the 1934 Challenge International de Tourisme. The PZL.26's Menasco engine was found to be unreliable, however, and only SP-PZL (c/n 5) completed the Challenge, in eleventh place. The RWD-9s did much better, including SP-DRC, on the left. No more PZL.26s were built and four of the five registrations were stricken from the register in 1936, but this machine, SP-PZO, was used until 1939. Note that although PZL was in Okęcie, it was not 'PZL-Okęcie' before WWII. Photo from: Narodowe Archiwum Cyfrowe

Another aircraft type designed for the 1934 Challenge International de Tourisme, the four-seat Kl 36 was the fastest ever Klemm aircraft, but none of the four participating Kl 36As completed the Challenge's 9537.4 km rally through Europe. They were powered by either an Argus As 17, as seen here, or a Hirth HM 8 engine. For some reason, three of them had this braced landing gear which looks like a hasty improvisation. Photo from: Narodowe Archiwum Cyfrowe

The Ba.42 was a more powerful derivative of the Ba.39 with a Fiat A.70 radial. Two examples were built for the 1934 Challenge International de Tourisme, I-GOGA and I-OMBO, with the latter reg presumably chosen for pilot Ambrogio Colombo. Both Ba..42s and two Ba.39S aircraft took part in the Challenge but none of them made it back to Warsaw, Colombo crash-landing his plane near Arnsberg with a broken engine mounting. Apparently the aircraft was repaired to become I-RANA. Military serial MM262 is also worn. Photo from: Narodowe Archiwum Cyfrowe

The second Aero A.200 seen during the 1934 Challenge International de Tourisme. It wears a depiction of a frog leaping over a barrier. Indeed the two light green A.200s excelled in the short take-off trial of the Challenge, with OK-AMA / 51 achieving the shortest take-off run in 74.5 metres, and AMB coming in third place. Flown by Jan Ambruš, AMB ended fourth in the final classification. Photo from: Narodowe Archiwum Cyfrowe

PS stood for Pallavicino Sportivo - the PS.1 was created for the 1934 Challenge International de Tourisme by Cesare Pallavicino at Caproni's CAB works in Bergamo. The landing gear was retractable. Two airframes were built. I-MELO was damaged during the Challenge's fuel consumption trial. I-FRAN (c/n 2) ended 18th in the final classification. Also allocated military mark MM257, I-MELO was rebuilt in 1938 as the Caproni Ca.166, I-ALGU. Photo from: Narodowe Archiwum Cyfrowe

An RWD-6, SP-AHN, had won the 1932 Challenge International de Tourisme. The RWD-9, developed from the RWD-6, did even better in the 1934 edition of the event, with three Polish examples taking the first, second and seventh places, and a Czechoslovak RWD-9 the eighth place. SP-DRF, piloted by Tadeusz Karpiński, did not complete the event's 9537.4 km rally around Europe. Note: this is an RWD-9S with the Polish Skoda GR-760 engine, while SP-DRB / 76 was an RWD-9W with a Walter Bora engine. One source mistakenly has this the other way around. Photo from: Narodowe Archiwum Cyfrowe

'Departure of inż. Stanisław Rogalski and dr. Kajetan Czarkowski-Golejewski to the Week-end Aérien (international aviation competition in London [Heston]) with the RWD-5 aircraft.' Rogalski was the R in RWD and this is the RWD-5 prototype, first flown in August 1931. The aircraft wears a Stanavo aviation fuel ad and marking of the 1931 IV Krajowy Konkurs Samolotów Turystycznych (National Touring Aircraft Contest), which it won. A total of 20 RWD-5s was built through 1937, and a replica first flown in 2000. Photo from: Narodowe Archiwum Cyfrowe

Smart biplane airliner of CIDNA. The company operated Vienna - Warsaw as a branch of its Paris - Istanbul route. Photo from: Narodowe Archiwum Cyfrowe

PLL Aerolot originated as PLL Aerolloyd in the Free City of Danzig in 1922. In 1925 the company was renamed, its German shareholders were bought out and the company moved its base to Warsaw. Six F13 aircraft are seen here, including P-PALP, P-PALR and P-PALG. P-PALF (c/n 776) was a recent acquisition in 1927, replacing P-PALF (c/n 625) which was lost in 1925. Aerolot merged with two other companies to form LOT in 1929. Photo from: Narodowe Archiwum Cyfrowe

CV was for Romania. Also painted on the rear fuselage is number 51 - likely the CoR number. According to French publicist Michel Barrière, this aircraft used to be F-AJHZ of Air Service which took Prince Carol back to Romania in June 1930 to ascend the throne in a coup d'etat, unknown to its French pilot. Certainly CV-RAC was put on display in 1932 as 'the aircraft that brought King Carol back'. Other sources give c/n 7122/12, ex F-AIZR. Photo from: Narodowe Archiwum Cyfrowe

Short take-off trial over an 8 m (26 ft) high barrier at the international contest for touring aircraft. Kurt Bayer in D-IBYR took 12th place in the final classification. Photo from: Narodowe Archiwum Cyfrowe

Polish National Aviation Competition. Number 12 is SP-BKW. The RWD-8 was a notable trainer and light reconnaissance / liaison type, over 550 examples of which were built. LOPP, a Polish paramilitary organisation, supported RWD and funded aircraft for the aero clubs. The Polish air force had 350 RWD-8 planes on strength in 1398 and they saw frontline service the following year. Photo from: Narodowe Archiwum Cyfrowe

The Bf 108 was designed for the 1934 Challenge International de Tourisme and four examples took part. The Bf 108s won the maximum speed and fuel consumption trials, but did less well in the slow trials. Karl Francke in the V4 prototype, D-IGAK, ended tenth overall. This particular aircraft was powered by an Argus As 17B engine. Photo from: Narodowe Archiwum Cyfrowe

The Challenge International de Tourisme was a European touring aircraft contest. The fourth and last edition was organised by the Polish Aero Club in 1934. Nationalism ran high and new aircraft were designed specially for the event, including the Fi 97. Its wing had high-lift devices similar to those of the Fi 156 Storch. Five Fi 97s, perhaps the total production, took part in the Challenge. Argus As 17-powered D-IPOS / 19, on the left , took third place behind two Polish RWD-9 aircraft. D-IVIF / 17 had a Hirth HM 8U. It was flown by the engine maker's brother, Wolf Hirth, a well known glider pilot and builder. Number 24 is a Klemm Kl 36. Photo from: Narodowe Archiwum Cyfrowe