An Update of Engine System Research at the Army Propulsion Directorate

The Small Turboshaft Engine Research (STER) program is being conducted by the Army Propulsion Directorate at the NASA Lewis Research Center. This program provides a vehicle for evaluating the application of emerging technologies to Army turboshaft engine systems and to investigate system related phenomena. Capitalizing on the resources at hand, in the form of both the NASA facilities and the Army personnel, the program goal of developing a phvsical understanding of engine system dynamics and/or system interactions is being realized. - This excerpt is from Summary in the paper.