 Confident that the new Me 163 pilots were more experienced than the pilots previously available to him, Sack asked for a new test pilot for his modified AS-6.The aircraft, nicknamed "Bussard" (Buzzard) by the JG 400 pilots, made one final flight attempt, this time with "Oberleutnant" Franz Roszle at the controls.Once again, the aircraft made only a short hop, resulting in a collapsed landing gear leg.