JS1051: A Study of the Impact of Propfan Propulsion Systems on General Aviation Turbine Engine Development, 1977-04-04, Box: 3 , Folder: 9. Shannon Engineering, Inc., records, 8746. Division of Rare and Manuscript Collections. https://aspace3-test.library.cornell.edu/repositories/2/archival_objects/766567 Accessed June 14, 2026.