[Reports] / Amer.inst.of aeronautics and astronautics. N 90-3977 : role of leading edge vortex flows in prop-fan interaction noise : Rep.presented at AIAA 13th aeroacoustics con.,Oct.22-24,1990,Tallahassee,Fl. / J.C.Simonich,D.C.McCormick,P.L.Lavrich, 1990. - 11 p. - Текст : непосредственный.
[Reports] / Amer.inst.of aeronautics and astronautics. N 90-3978 : Vortex structure of wakes behind an advanced propeller at takeoff load conditions : Rep.presented at AIAA 13th aeroacoustics con.,Oct.22-24,1990,Tallahassee,Fl. / P.L.Lavrich,D.C.McCormick,D.J.Parzych, 1990. - 17 p. - Текст : непосредственный.
[Reports] / Amer.inst.of aeronautics and astronautics. N 89-1094 : Interaction noise mechanisms for advanced propellers analytical evaluation : Rep. presented at the AIAA 12th aeroacoustics conf.,Apr. 10-12,1989, San Antonio(Tx) / D.J.Parzych,P.L.Lavrich, 1989. - 7 p. - Текст : непосредственный.