project, code-named Project DRAGON LADY. Despite SAC chief LeMay's early dismissal of the CL-282, the USAF in 1955 sought to take over the project and put it under SAC until Eisenhower repeated his opposition to military personnel flying the aircraft. Nonetheless, the USAF substantially participated in the project; Bissell described it as a "49 percent" partner. The USAF agreed to select and train pilots and plot missions, while the CIA would handle cameras and project security, process film, and arrange foreign bases. Beyond not using American military personnel to fly the U-2, Eisenhower preferred to use non-U.S. citizens. Seven Greek pilots and a Polish expatriate were added to the U-2 trainees although only two of the Greek pilots were subsequently allowed to fly the aircraft. Their flight proficiency was poor. The language barrier and a lack of appropriate flying experience proved problematic; by late 1955, foreign pilots had been dropped from the program.Brugioni 2010, p. 106. USAF pilots had to resign their military commissions before joining the agency as civilians, a process referred to as "sheep dipping", and were always called "drivers", not pilots. The program only recruited fighter pilots with reserve USAF commissions, as regular commissions complicated the resignation process. The program offered high salaries and the USAF promised that pilots could return at the same rank as their peers. The CIA's standards for selection were higher than the USAF's once the latter began its own U-2 flights; although more candidates were rejected, the CIA's program had a much lower accident rate. Test pilot Tony LeVier trained other Lockheed pilots to fly the U-2. By September 1955 he had trained six USAF pilots, who in turn trained other "sheep-dipped" pilots. As no two-seat trainer model was available for the program's first 15 years, training was done before the trainee's first solo flight and via radio. Pilots had to adjust to the U-2's unusual combination of jet engines and enormous, high-lift glider wings; because of the "coffin corner" they learned of the need to pay complete attention to flying when not using the autopilot. Test flights After AQUATONE was funded and security handled by the CIA, the agency referred to all its high altitude aircraft as "articles". This was intended to reduce the chances of a security breach as part of a compartmented security system. These three-digit "article" numbers were factory assigned. Article 341 was the original U-2 prototype, and