JS1077: Proposal to Demonstrate Compliance of the Dee Howard Company Model 25 XR With FAR 36 Takeoff and Landing Gross Weights to 16,300 LB and 14,300 LB, Respectively, 1981-03-19 - 1981-09-17, Box: 4 , Folder: 14. Shannon Engineering, Inc., records, 8746. Division of Rare and Manuscript Collections. https://aspace3-test.library.cornell.edu/repositories/2/archival_objects/766593 Accessed June 14, 2026.