SAE Mobilus (formerly the SAE Digital Library) provides mobility engineering content for the automotive, aerospace, and commercial-vehicle industries. Full text access is available to SAE Technical Papers from 1906 to the present. Bibliographic access only is available for the journal articles, aerospace standards, aerospace material specifications, ground vehicle standards (J standards), and SAE ITC Engine & Airframe standards. (Updates vary)
http://digital.library.wisc.edu/1711.web/saedigitallibrary
This permalink is a direct, persistent URL to the database that will always work and won't break.