IGF::OT::IGF THROUGH THE SPONSORSHIP OF THE ADVANCED AIR TRANSPORT TECHNOLOGIES (AATT) PROJECT OF NASAS ADVANCED AIR VEHICLES PROGRAM (AAVP), RESEARCH IS BEING CONDUCTED TO UNDERSTAND ENGINE ICING DURING ICE CRYSTAL ICING (ICI) CONDITIONS DEFINED IN THE CODE OF FEDERAL REGULATIONS TITLE 14 AERONAUTICS AND SPACE, CHAPTER 1, SUBCHAPTER C, PART 25, APPENDIX D. NASA IS PLANNING TO EXPAND CURRENT UNDERSTANDING OF ENGINE ICING DURING ICI CONDITIONS, WITH THE GOAL TO IMPROVE FLIGHT SAFETY. AMONG OTHER PARAMETERS, ACCURATE MEASUREMENT OF THE PARTICLE SIZE DISTRIBUTION (PSD) WITHIN THE ENGINE IS ESSENTIAL TO THIS RESEARCH. THUS, NASA PROPOSES TO CONTRACT ARTIUM TECHNOLOGIES, INC. TO MEASURE THE PSD WITHIN A HONEYWELL ENGINE DURING AN UPCOMING TEST IN THE NASA PROPULSION SYSTEM LABORATORY (PSL). ARTIUM TECHNOLOGIES, INC. HAS DEVELOPED PARTICLE SIZE MEASUREMENT TECHNOLOGIES WITH APPLICATION IN ICI CONDITIONS THROUGH A NASA SBIR PHASE I CONTRACT. SPECIFICALLY, ARTIUM S HIGH SPEED IMAGING (HSI) INSTRUMENT IS CAPABLE OF REMOTELY IMAGING AND SIZING PARTICLES WITHIN ICE CRYSTAL CLOUDS. TESTING WITH THE HSI HAS BEEN CONDUCTED PREVIOUSLY DURING NASAS FIRST FUNDAMENTAL ICE CRYSTAL ICING TEST. DURING THAT TEST, THE HSI DEMONSTRATED CAPABILITY TO NON- ?INTRUSIVELY MEASURE THE PARTICLE SIZE DISTRIBUTION IN CHALLENGING CONDITIONS. THIS CAPABILITY IS ESSENTIAL TO MEASURING THE PARTICLE SIZE DISTRIBUTION WITHIN AN OPERATING ENGINE EXPOSED ICI CONDITIONS. NASA RESEARCHERS ARE PROPOSING THAT ARTIUM TECHNOLOGIES PROVIDE PARTICLE SIZE MEASUREMENT SERVICES DURING THE HONEYWELL ENGINE TEST, WHICH IS SCHEDULED FOR JUNE 2017. THE NASA ICI RESEARCH TEAM PROPOSES THAT PARTICLE SIZE MEASUREMENTS BE TAKEN SIMULTANEOUSLY UPSTREAM OF THE FAN AND IN THE BY- ?PASS FLOW WITH THE HONEYWELL ENGINE DURING PORTIONS OF THE TESTING. ARTIUM SHALL WORK WITH NASA AND HONEYWELL PERSONNEL PRIOR TO THE SCHEDULE START DATE TO ENSURE SUCCESSFUL OPERATION OF THE HSI INSTRUMENTS DURING TESTING. ARTIUM SHALL LEASE TO NASA TWO HSI INSTRUMENTS, WHICH ARTIUM SHALL SETUP, CHECK OUT, OPERATE, AND MAINTAIN DURING THE ENGINE TEST. FINALLY, ARTIUM SHALL PROVIDE AN ANALYSIS OF THE RESULTS TO NASA.