Glenn Research Center:Includes visitor center information, education programs, and job opportunities.LTID: Logistics and Technical Information Division, Office of Acquisition at Glenn Research Center,Cleveland, Ohio.Optical Instrumentation Technology Branch: Power Technology Division: Propulsion Systems Analysis Office Home Page: The PSAO is a systems analysis group within NASA Glenn's Aeronautics Directorate. We analytically predict the thermodynamic cycle performance of a variety of airbreathing engines, perform aeromechanical engine design, aircraft trajectory calculations, economic assessments, and environmental analyses in support of many NASA aeronautics programs.Research Facilities at NASA Glenn Research Center: Portal site for the major research facilities located at NASA Glenn Research Center.