PURDUE UNIVERSITY SEEKS TO DEVELOP SPACEFLIGHT TESTING OF A MULTI-FUNCTIONAL SMALLSAT TECHNOLOGY FOR LOW-POWER ATTITUDE AND THERMAL CONTROL USING THE FILM-EVAPORATION MEMS TUNABLE ARRAY (FEMTA) TECHNOLOGY DEVELOPED TO TRL5 UNDER NASA SMALLSAT TECHNOLOGY PARTNERSHIP PROGRAM. FEMTA UTILIZES MICROSCALE EFFECTS IN FLUID SURFACE TENSION AND ADVANCED MEMS MICROFABRICATION TO ACHIEVE A HIGHLY TUNABLE MICROPROPULSION AT A THRUST-TO-POWER RATIO OF 200 N/W USING PURE WATER AS PROPELLANT. UNDER THE SPACETECH- REDDI-2018 WE SEEK TO ADVANCE FEMTA TECHNOLOGY UTILIZING SUBORBITAL VEHICLES DEMONSTRATING ZERO-G IN-SPACE OPERATION OF THE FEMTA THRUSTER WITH THE VAPOR-PRESSURE DRIVEN PROPELLANT MANAGEMENT SYSTEM. TECHNICAL OBJECTIVES OF FLIGHT TESTING INCLUDE (I) DEVELOP A SPACEFLIGHT RATED MICROPROPULSION MODULE; (II) PROVE THE OPERABILITY OF THE PROPULSION MODULE IN SPACEFLIGHT OPERATING CONDITIONS (III) VERIFY THE INTEGRITY OF THE FEMTA THRUSTER UNDER SPACEFLIGHT LOADING CONDITIONS. THE FLIGHT TESTING WILL BE CARRIED OUT ON NEW SHEPARD LAUNCH VEHICLE IN AN EXTERNAL PAYLOAD LOCKER EXPOSED TO VACUUM. DURING ASCENT AND WHILE THE AMBIENT PRESSURE IS LESS THAN 10 KPA THE ZERO-G TANK WILL VENT TO EQUALIZE WITH THE ENVIRONMENT. ONCE IN ZERO-G A VALVE WILL OPEN TO ALLOW PROPELLANT TO FLOW FROM THE PROPELLANT TANKS TO A COLLECTION CHAMBER. THE FEMTAS WILL ALSO BE POWERED DURING THIS TIME TO SIMULATED OPERATION. ALCOHOL VAPOR PRESSURE AND TEMPERATURE PROPELLANT FLOW RATES AMBIENT PRESSURE PROPULSION MODULE ACCELERATION AND VIDEO WILL BE RECORDED AT ALL TIMES THROUGHOUT THE EXPERIMENT. FEMTA THRUSTERS WILL BE INSPECTED AND TESTED BEFORE AND AFTER THE FLIGHT. A TEAM OF UNDERGRADUATE STUDENTS AT PURDUE WILL BE INVOLVED IN THE DESIGN AND BUILDING OF THE FLIGHT MODULE AND THE IMPLEMENTATION OF THE SUBORBITAL FLIGHT DEMONSTRATION. PI CO-PI AND KEY PERSONNEL INCLUDING GRADUATE STUDENTS WILL COORDINATE AND ADVISE THE UNDERGRADUATE TEAM. THE UNDERGRADUATE STUDENT ACTIVITIES WILL BE CARRIED OUT THROUGH A AAE 490 SPACECRAFT DESIGN COURSE.