RG-GL-27/JS1006: Aerodynamic Performance Analysis Mark II System Learjet Models 23, 24, and 24B/D, 1976-01-09, Box: 1 , Folder: 2. Shannon Engineering, Inc., records, 8746. Division of Rare and Manuscript Collections. https://aspace3-test.library.cornell.edu/repositories/2/archival_objects/767036 Accessed June 15, 2026.