Browse Items (1 total)
- Source is exactly "The William P. and Moya Olsen Lear Papers (2000-06-20), Box 4, Folder 27"
[William P. and Moya Olsen Lear Papers, Box 4, Folder 27 - "Blind approach by voice," 1939 August]
![[William P. and Moya Olsen Lear Papers, Box 4, Folder 27 - "Blind approach by voice," 1939 August]](https://digitalcollections.museumofflight.org/files/square_thumbnails/524a75873758bf9b9cdf4e4101a5c6ee.jpg "[William P. and Moya Olsen Lear Papers, Box 4, Folder 27 - "Blind approach by voice," 1939 August]")
Items from Box 4, Folder 27 of the William P. and Moya Olsen Lear Papers, August 1939. Includes eight pages of handwritten notes and sketches related to "Blind approach by voice," an airplane landing system.