Each month in “Slice of History” we feature a historical photo from the JPL Archives. See more historical photos and explore the JPL Archives at https://beacon.jpl.nasa.gov/.
The NASA Jet Propulsion Laboratory’s 1971 Annual Report featured this photo of a remote controlled system for handling solid propellants. A 1965 Space Programs Summary report indicated that the equipment had been ordered and would be installed in building 197 within a few months. This equipment made it possible to safely mix and load high energy solid propellants into small motors. Building 197 is still known as the Solid Propellant Engineering Laboratory.