[Reports] / Amer.inst.of aeronautics and astronautics. N 90-3952 : Experimental/theoretical investigation of the sound field of an isolated propeller,including angle of incidence effects : Rep. presented at the AIAA 13th aeroacoustics conf.,Oct.22-24,1990,Tallahassee(Fl) / T.Zandbergen,S.L.Sarin,R.P.Donnelly, 1990. - 7 p. - Текст : непосредственный.