1985•NASA Technical Reports Server (NASA)Requires access
Effect of location of aft-mounted nacelles on the longitudinal aerodynamic characteristics of a high-wing transport airplane
William K. Abeyounis, J. C. Patterson
Open publisher page 6 citations
Abstract
As part of a propulsion/airframe integration program, tests were conducted in the Langley 16-Foot Transonic Tunnel to determine the longitudinal aerodynamic effects of installing flow through engine nacelles in the aft underwing position of a high wing transonic transfer airplane. Mixed flow nacelles with circular and D-shaped inlets were tested at free stream Mach numbers from 0.70 to 0.85 and angles of attack from -2.5 deg to 4.0 deg. The aerodynamic effects of installing antishock bodies on the wing and nacelle upper surfaces as a means of attaching and supporting nacelles in an extreme aft position were investigated.