TY - RPRT TI - Tiltrotor Aeroacoustic Code (TRAC) Prediction Assessment and Initial Comparisons With TRAM Test Data AU - Burley, Casey L. AU - Brooks, Thomas F. AU - Charles, Bruce D. AU - McCluer, Megan PY - 1999 UR - https://ntrs.nasa.gov/citations/19990079391 ID - 19990079391 ER -