Dassault's production facilities proved to be unable to attain the rate of production necessary to keep pace with the domestic orders, in part due to a lack of time to refine the Ouragan's design to make it easier to mass-produce; accordingly, portions of the work were subcontracted to other French aircraft manufacturers. A manufacturing arrangement was formed with SNCASE to assemble forward fuselages for the aircraft at their Toulouse factory, while a similar agreement with SNCASO led to the firm manufacturing rear fuselages at Saint-Nazaire and wings in Bouguenais. Dassault's factories continued to produce the center fuselage and tail units, while final assembly was carried out at Dassault's facility in Mérignac, Gironde.