SNCAC NC.900

The SNCAC NC.900 was a French fighter aircraft of the inmediate post-war. It was the French version of the excellent Focke-Wulf Fw.190 fighter which had been built in France during the war.
At the end of 1944, after the liberation of France, an underground aircraft repair workshop, that was safe from allied reconnaissance planes, was found in Cravant, at the French region of Yonne, with many abandoned Fw.190A-5 and A-8 that were under reparations. In order to equip the newly-reformed Armée de l'Air, the French government nationalized the workshop and integrated it into the Société Nationale des Constructions Aéronautiques du Centre (SNCAC) under the name of Atélier Aéronautique de Cravant (AAC) (Aeronautical Workshop of Cravant) and decided to finish the construction and reparations of those hundred of aircraft under the name of NC.900.
The decision was taken on an economical basis as each aircraft's cost was of just 1.5 millions of French Francs of the time, instead of the 12 millions that buying an Spitfire cost. As repairing the aircrafts already in there (and finishing the fuselages that were also present) wasn't too difficult. However, the BMW 801 D2 engines had been sabotaged so perfectly that manufacturer Voisin, which was the company at charge of supplying and repairing them, had great problems providing functional copies.
The first example was completed and took off on 16th March 1945 with the war almost over. After completions, the first batch of aircrafts were sent to the Centre d'Essais en Vol (CEV), in Brétigny-sur-Orge, in Île-de-France, in order to receive their certificate of airworthiness.
The was put into service with the Normandie Niemen squadron on 1st February 1946, but the pilots of the "Neu-neu" (the nickname given to the aircraft) had to cope with many engine malfunctions and accidents, probably due to the sabotage of the engines by the French workers back when it was occupied by Germany. Furthermore, the pilots were reticent to use an aircraft they had been fighting during the last four years in the eastern front. It was considered a dangerous aircraft to fly, and shortly after, on 16th February 1946, it was forbidden to fly. That same day, production was provisionally halted, but it would never resume. Nine examples were rehabilitated later in June, but the performance wasn't any better as in the whole month of October only one example managed to fly for just 45 minutes.
On 1st November the aicraft was definitely decommissioned and removed from the inventories. All examples were scrapped except for one, which was donated to Museum of Air and Space in Bourget, where it's exposed nowadays in the hall nº5, repainted in German colours.

Sources:
1. https://fr.wikipedia.org/wiki/SNCAC_NC.900 (translated)
2. https://www.aviationsmilitaires.net/v2/base/view/Variant/6596.html (translated)