Balloon parachute diagram created by the Balloon Section, Air Service, American Expeditionary Forces, December 23, 1918. Shows former folding method which occasionally resulted in the parachute opening in two lobes.
Items from Box 28, Folder 4 and Box 200, Folder 4 of the William P. and Moya Olsen Lear Papers, circa 1926-1941. Contains patent copies and diagrams related to Lear direction finders. 26 total items.
Items from Box 4, Folder 22; Box 205, Folder 1; and Box 209, Folder 1 of the William P. and Moya Olsen Lear Papers, circa 1938-1939. Contains diagrams related to Unihand reel and ARL-48 motor reel. Seven total items.
Items from Box 33, Folder 8; Box 205, Folder 6; and Box 210, Folder 1 of the William P. and Moya Olsen Lear Papers, circa 1938-1944. Contains graphs, diagrams, and photographs related to performance and technical data for assorted Lear products. 65…
Items from Box 4, Folder 23; Box 200, Folder 1; and Box 209, Folder 1 of the William P. and Moya Olsen Lear Papers, February 1939 to March 1940. Contains notes and diagrams related to ADF-6 and ADF-7 automatic direction finders. 11 total items.
Items from Box 15, Folder 3; Box 209, Folder 2; and Oversize Folder 3 of the William P. and Moya Olsen Lear Papers, December 1939 to October 1942. Contains patent applications and technical drawings created by William P. Lear for the radio apparatus…
Items from Box 26, Folder 9 of the William P. and Moya Olsen Lear Papers, circa 1939-1944. Contains a hand-drawn sketch, diagrams, and documents related to the Learmatic and Learmatic Gyromatic Radio Compass. Six total documents.
Items from Box 27, Folder 4 and Box 207, Folder 2 of the William P. and Moya Olsen Lear Papers, September 1940 through May 1941. Contains product "pitch" letters, diagrams, technical drawings, brochures, and price lists related to Lear products. 26…
Items from Box 16, Folder 19 and Box 205, Folder 3 of the William P. and Moya Olsen Lear Papers, December 1940 to January 1941. Contains an engineering report, diagrams, and notes for the Lear-Lorch quad corrector. Four total items and original…
Items from Box 38, Folder 14 and Oversize Folder 7 of the William P. and Moya Olsen Lear Papers, circa 1942-1945. Contains notes, list, diagrams, technical data, and a department organizational chart related to the Lear Avia Engineering Department…