Caproni Ca.310, foreign users, part one

 The Caproni Ca.310 'Libeccio' (Italian word for "south-western wind") , was an Italian twin-engined reconnaissance monoplane used during World War II. The aircraft itself was a derivation of the previous Ca.309 and it was employed by many users around the world. Among them, the following ones:

• Independent State of Croatia: The Air Force of the Independent State of Croatia (whose acronym was ZNDH) employed 6 (seven, according to some other sources) Ca.310. Five of them were bought from German stocks, which were ex-Yugoslav machines and one machine captured by themselves, plus one Ca.310bis (which was a variant with an unstepped glazed nose, which would eventually become the prototype for the Ca.311). 
  A single ZNDH Ca.310 fleed to Italy on 31st October 1943 and landed at Tortorella airfield, controlled by the South African Air Force. That airplane was loaded with 7 Yugoslav and one Gestapo officer. Of those people, the most important was Cpt. Janko Dobnikar a Slovene pilot working for Zemun WNF (ex Ikarus) who was arrested the previous day by the Gestapo for cooperating with partisans but the flight was hijacked and sent to Italy.
• Hungary: Hungary bought a total of 36 Ca.310 in 1938. Three of them were soon lost to accidents and the Hungarians were not satisfied with the type's performance, so during the next year (according to some other sources it was in 1940) the remaining 33 machines were sent back to Caproni. They were taken into account for the MKHL's (Hungarian acronym for Magyar Királyi Honvéd Légiero - Royal Hungarian Air Force) purchase of the Caproni Ca.135bis medium bomber. Returned aircraft were refurbished and assigned to the 50º Stormo Assalto, to replace the Breda Ba.65 as part of the 12º Gruppo of the Regia Aeronautica (Italian Royal Air Force)
• Norway: Norway ordered 24 Ca.310 as part of a dried and salted cod barter between Norway and Italy. After the delivery of the first four aircraft, testing revealed that flying characteristics weren't as satisfactory as Caproni had promised and build quality fell way behind too. Therefore, Norwegian authorities cancelled the order and any further Ca.310 wasn't delivered. The four Norwegian machines received the following serial numbers: 501, 503, 505 and 507. Aircraft No. 503 was bought by the Norwegian national airline Norske Luftfartselskap and was employed as a fast mail aircraft in the Oslo-Göteburg (Sweden)-Copenhagen (Denmark) night route during summer 1939. By the start of the war it was recalled by the Haerens Flyvevaaben (Norwegian Army Air Service) and was put back into military service.
  When Germany attacked Norway on 9th April 1940, all four Norwegian Ca.310 were based at Sola airfield, where they were called to move to Oslo, to defend the capital, but two of them, numbers 503 and 507 were destroyed on the ground by the Luftwaffe. One Ca.310, number 505 managed to take off, but it was destroyed by its own crew after having to perform an emergency landing at Opstad. The other surviving machine, number 501 managed to take off from Sola, although having been damaged, but eventually it crashed in lake Vangsmjosa, in the region of Valdres on 19th April 1940. This aircraft was recovered and restored and is nowadays on exhbition at the Sola aircraft museum.

Sources:

1. https://www.britmodeller.com/forums/index.php?/topic/235096763-caproni-ca310/

2. https://en.wikipedia.org/wiki/Caproni_Ca.310