The embargo has been viewed as having been a considerable setback for the IAF, who had been keen to induct the new Mirage 5 variant to compensate for the losses incurred during the Six-Day War, the service was also continuing to use the Mirage IIIC, but found itself unable to access official support. In response to the French decision, Israel decided to domestically manufacture the airframes (known as Raam A and B project); reportedly, Israel already possessed the necessary schematics and documentation on the aircraft, although Israel did not officially obtain a manufacturing license from Dassault. According to aviation author Don McCarthy, it has been speculated that Israeli intelligence agency Mossad had played a role in obtaining some of the manufacturing information, while others allege that Dassault's founder, Marcel Dassault, may have freely provided design information.