THE PROJECT OBJECTIVES ARE TO ADVANCE THE REACTIVE REVERSIBLE BLADE TURBINE (RRBT) DESIGN TO PERFORM RELIABLY IN UNDER-ICE RIVERINE APPLICATIONS AND TO BUILD AND DEMONSTRATE A 500WE INTEGRATED PROTOTYPE AT THE TANANA RIVER TEST SITE (TRTS) IN ALASKA. THESE DEMONSTRATIONS WOULD VERIFY PERFORMANCE CHARACTERISTICS DURING A SUMMER TESTING CAMPAIGN AND THEN VALIDATE UNDER ICE DEPLOYMENT METHODS AND VERIFY UNDER ICE OPERATION THROUGH WINTER TESTING EFFORTS.