IGF::OT::IGF THE OBJECTIVE OF THE FIRST PHASE OF THIS RESEARCH IS TO DEVELOP A DESIGN AND ASSESS THE FEASIBILITY OF A LINER THAT WILL MEET THE GOALS STATED IN THE NRA: BROADBAND ACOUSTIC PERFORMANCE THAT MEETS OR EXCEEDS CONVENTIONAL STATIC MULTI-DEGREE OF FREEDOM (MDOF) LINERS. THE FREQUENCY RANGE FOR IMPROVED ACOUSTIC PERFORMANCE INCLUDES 1.0 TO 6.0 KHZ FOR A FULL-SCALE TURBOFAN ENGINE (FAN DIAMETER APPROXIMATELY 6-9 FT.) DRAG REDUCTION EQUIVALENT TO 80% OF THE DIFFERENCE BETWEEN CONVENTIONAL STATIC MDOF AND HARD WALL VALUESAN IMPORTANT ELEMENT OF THIS WORK WILL BE THE PROPER ASSESSMENT OF THE ADAPTIVE FACESHEET PROPERTIES WITH THE TUNABLE RESONATOR COMPONENT. THE SMA FACESHEET WILL HAVE AT MINIMUM TWO CONDITIONS ONE THAT REPLICATES THE PERCENTAGE OPEN AREA COMPARABLE TO THAT OF A CONVENTIONAL LINER AND A SECOND WHERE THE FACESHEET IS SMOOTH LIKE A HARD WALL SEGMENT OF A NACELLE. INTERMEDIATE POSITIONS WILL ALSO BE CONSIDERED TO OPTIMIZE THE OVERALL ACOUSTIC PERFORMANCE OF THE LINER AT ALL FREQUENCIES.THE OBJECTIVES OF THE SECOND PHASE WILL BE TO BUILD AND TEST THE FULL LINER CONCEPT. DURING DEVELOPMENT THE ACOUSTIC PROPERTIES OF THE LINER WILL BE VERIFIED BY IMPEDANCE TUBE TESTING AT THE FACILITIES OF FLORIDA STATE UNIVERSITY. THE DESIGN OF THE FACESHEET CONFIGURATION WILL BE GUIDED BY RECENT FINDINGS BY BOEING AND NASA ON FACESHEET DRAG AND VERIFIED IN THE FSU FACILITIES. BOEING WILL DELIVER LINER HARDWARE TO NASA LANGLEY THAT IS SUITABLE FOR TESTING IN THE NASA GRAZING FLOW IMPEDANCE TUBE FACILITY (GFIT).QUALITY ASSURANCE IN ALL PHASES OF THE PROJECT WILL BE MADE THROUGH CONSULTATION AND INDEPENDENT REVIEW OF PLANS AND PROGRESS BY TECHNICAL EXPERTS AT BOEING.