Acquired in 2004 from the US Navy. The @nasa S-3B Viking was used out of the Glenn Research Facility in Cleveland OH for the next 16 years. One of its main research tasks was to test communications standards that the FAA can use for unmanned aircraft to operate safely in US airspace. The last S-3 is now on display at the @sdasm in California. #nasa #glennresearchcenter #clevelandOH #s3viking #S3 #research #nasas3viking #sandiegoairandspacemuseum #eaa #osh #oshkosh #osh18 #AirVenture #airshow #ai