JS1366: US Department of Defense Small Business Innovation Research Program (SBIR) Phase I - FY 1989 Visibility Requirements for Non-Instrumented Landings, undated, Box: 15, Folder: 5. Shannon Engineering, Inc., records, 8746. Division of Rare and Manuscript Collections. https://aspace3-test.library.cornell.edu/repositories/2/archival_objects/766898 Accessed June 15, 2026.