SOME ACOUSTIC RESULTS FROM THE NASA/PRATT AND WHITNEY ADVANCED DUCTED PROPULSOR MODEL
REPAIR OF HMS CATTISTOCK'S GRP STRUCTURE USING RESIN INFUSION
Pilgrim's Progress: A Status Report on North American APM Systems
NASA Research for Instrument Approaches To Closely Spaced Parallel Runways
Benefits of Swept and Leaned Stators for Fan Noise Reduction