[Reports] / Amer.inst.of aeronautics and astronautics. N 89-2152 : Preliminary design of civil transport aircraft : Paper presented at AIAA/AHS/ASEE aircraft design, systems and operations conf., Seattle(Wa), July 31-Aug.2, 1989 / C.Michaut,D.Cavalli,H.T.Huynh,H.Le Thuy, 1989. - 8 p. - Текст : непосредственный.