LARGE PARACHUTE SYSTEMS ARE A VITAL TECHNOLOGY TO ENTRY DESCENT AND LANDING (EDL) MISSIONS. THEIR DEVELOPMENT POSES EXTRAORDINARY CHALLENGES RELATED TO INFLATION DYNAMICS MULTI-BODY DYNAMICS AND CAPSULE WAKES/PARACHUTE INTERACTIONS DURING DEPLOYMENT AND DESCENT. DESPITE THE RECENT ADVANCES IN MODELING AND SIMULATIONS OF FLUID-STRUCTURE INTERACTION (FSI) PHENOMENA PARACHUTE DESIGN CONTINUES TO RELY ON EXTENSIVE GROUND AND FLIGHT TESTING. PREDICTIVE MODELS ARE NOT MATURE ENOUGH FOR DESIGN AND OPTIMIZATION. COMPUTATIONAL CAPABILITIES HAVE KEY GAPS IN THEIR ABILITY TO ACCOUNT FOR ALL MULTIPHYSICS AND MULTI-SCALE PHENOMENA THAT CHARACTERIZE PARACHUTE SYSTEMS AND VALIDATION IS YET UNMET. LESSONS LEARNED DURING RECENT PROGRAMS MOST NOTABLY THE LOW-DENSITY SUPERSONIC DECELERATOR (LDSD) AND ORION CAPSULE PARACHUTE ASSEMBLY SYSTEM (CPAS) HIGHLIGHTED THE NEED FOR IMPROVED DESIGN AND ANALYSIS TOOLS. THE LARGE NUMBER AND VARIABILITY OF NON-DIMENSIONAL PARAMETERS THAT CHARACTERIZE THE AERODYNAMIC PERFORMANCE OF A PARACHUTE CHALLENGES THE DEVELOPMENT OF COMPUTATIONAL TOOLS. A LACK OF A COMPLETE UNDERSTANDING OF THE DOMINATING MECHANISMS ADDS FURTHER COMPLEXITY TO THE DEVELOPMENT OF PHYSICS-BASED MODEL. THERE IS A NEED FOR BENCHMARK DATA TO ASSESS COMPUTATIONAL TOOLS IN SIMPLIFIED SETTINGS. WE PROPOSE TO DEVELOP EXPERIMENTS AIDED BY MODERN MEASUREMENT TECHNIQUES TO PROVIDE TAILORED VALIDATION OF FSI MODELS WHILE IMPROVING UNDERSTANDING OF PARACHUTE STATIC AND DYNAMIC BEHAVIOR. TENSILE MECHANICS EXPERIMENTS WILL BUILD UPON RECENT ADVANCES IN-SITU X-RAY COMPUTED MICRO-TOMOGRAPHY AND NOVEL IMAGE ANALYSIS METHODS TO RESOLVE THE MULTISCALE MECHANICAL RESPONSE OF PARACHUTE MATERIALS. IN SITU MICRO-TOMOGRAPHY WILL BE USED TO MEASURE MATERIAL STRAIN CHANGES IN FIBER ARCHITECTURE FABRIC PERMEABILITY AND POROSITY AS INCREASING TENSILE LOADS ARE APPLIED. SUB-SCALE WIND TUNNEL EXPERIMENTS AIDED BY MULTI-CAMERA IMAGE RECONSTRUCTION HIGH-SPEED IMAGING AND TOMOGRAPHIC PARTICLE IMAGE VELOCIMETRY WILL BE CARRIED OUT TO CHARACTERIZE COUPLED FLUID AND CANOPY DYNAMICS AT A WIDE RANGE OF TIME AND LENGTH SCALES. WIND TUNNEL TEST AT SUBSONIC CONDITIONS WILL INVESTIGATE THE ROLE FABRIC PERMEABILITY AND POROSITY BY SIMULTANEOUSLY MEASURING THE FLOW FIELD AND CANOPY DYNAMICS. THE SAME PARACHUTE MODEL WILL BE STUDIED IN SINGLE AND CLUSTERED CONFIGURATIONS. SUPERSONIC TESTS WILL TARGET THE EFFECTS OF SUSPENSION LINE/PARACHUTE/SHOCK INTERACTIONS AND FOREBODY WAKE EFFECTS. THIS IS ACHIEVED BY TESTING A SIMPLIFIED TEST ARTICLE THAT CAN BE MODELED IN SIMULATIONS. SENSITIVITY TO VARYING LENGTHS AND BRAIDED LINE THICKNESSES WILL BE RESOLVED. AT BOTH REGIMES WE WILL CONCURRENTLY MEASURE THE FLOW FIELD WITH ADVANCED OPTICAL TECHNIQUES RESOLVE DYNAMICS BY MULTI-CAMERA IMAGE RECONSTRUCTION CHARACTERIZE MATERIALS PRIOR TO AND AFTER AERODYNAMIC LOADING AND QUANTIFY UNCERTAINTIES. EXPERIMENTAL DATASET WILL BE PROCESSED SUCH THAT THEY CAN BE DIRECTLY IMPORTED INTO NUMERICAL CODES AND USED FOR COMPARISON WITH NUMERICAL DATA. OUR DATA WILL BE SHARED THE FSI COMMUNITY FOR VALIDATION ENABLING A LEAP IN FSI MODEL READINESS FOR PREDICTIVE COMPUTATIONAL DESIGN.