THE GOAL OF THE ICI-5 MISSION IS TO UNDERSTAND IONOSPHERIC IRREGULARITIES ASSOCIATED PLASMA INSTABILITIES AND TURBULENCE AND THE ROLE OF SOFT ELECTRONS IN THEIR FORMATION AND EVOLUTION. THE BIFOCAL HIGH-CADENCE MEASUREMENTS OF SOFT ELECTRON PRECIPITATION IN CONCERT WITH MULTI-AXIS ELECTRIC FIELD MEASUREMENTS COMBINED WITH MULTI-POINT MEASUREMENTS FROM A DOZEN DAUGHTER PAYLOADS MEASURING PLASMA DENSITY WILL ALLOW US TO MAKE SIGNIFICANT SCIENTIFIC PROCESS IN UNDERSTANDING THE MULTI-SCALE EVOLUTION OF IONOSPHERIC IRREGULARITIES AND THEIR CONNECTION TO SOFT ELECTRON PRECIPITATION. IONOSPHERIC IRREGULARITIES HAVE A MAJOR EFFECT ON OUR SOCIETY BY DISRUPTING COMMUNICATION WITH SPACEBORNE ASSETS SUCH AS GPS AND GNSS. THIS MISSION THEREFORE PROMISES AN ADVANCE IN OUR UNDERSTANDING OF AN IMPORTANT SCIENTIFIC TOPIC WITH SIGNIFICANT SOCIETAL IMPORTANCE. IN ORDER TO SUPPORT THIS FLIGHT WE PROPOSE TO MAKE MINOR ADAPTATIONS TO THE HIGH-HERITAGE INTERFACE ELECTRONICS AND LOW-VOLTAGE AND HIGH-VOLTAGE POWER SUPPLIES DEVELOPED AT IOWA FOR PREVIOUS GENERATIONS OF ELECTRON ELECTROSTATIC ANALYZERS FLOWN ON THE THUNDERSTORM- III AT I-II RACE HIBAR ACES CHARM-II SOUNDING ROCKETS AND INTEGRATE THOSE ELECTRONICS WITH THE BIFOCAL FRONT-END ELECTRONICS DETECTOR AND OPTICS. THE RESULT WILL BE A FULLY FUNCTIONAL ADVANCED ELECTRON INSTRUMENT WELL SUITED TO THE ICI-5 SCIENCE GOALS WHICH WILL HELP ANSWER IMPORTANT QUESTIONS ABOUT PLASMA MICROPHYSICS AND TURBULENCE IN THE CUSP IONOSPHERE. THIS TEST FLIGHT WILL ALSO SERVE TO QUALIFY THE BIFOCAL SENSOR THEREBY DEMONSTRATING KEY ENABLING TECHNOLOGIES FOR FUTURE NASA HELIOPHYSICS MISSIONS.