Browse Items (33 total)

Compass, Radio/Lear Orienter Radio Compass, Model #2330A
Radio compass constructed out of black metal with a glass circular face. A sticker of an airplane and "Lear Orienter" is placed on top of the glass covering. The compass is embedded into a square piece of brown wood with a lacquer finish. There is a…

Compass, Radio/Lear Orienter Radio Compass
Radio compass constructed out of black metal with a glass circular face with yellow numbering. An airplane and "Lear Orienter" is etched in white on top of the glass covering. The back portion of the compass is black cylindrical metal. In addition,…

ADF/Lear Automatic Direction Finder 12E
Rectangular black metal case with front panel. Panel has tuning dial at center with three rows. Also has tuning selection knob and vol. knob. Has ADF/ANT switch. Tester button at upper right. At bottom of panel "Lear ADF-12E." Holes and flat prongs…

Compass, Radio/Learmatic 1042
Radio compass constructed out of a black metal case with a round face. Divided compass on front with sectioned numbers in beige. Silhouette of plane with "Learmatic." Plug at back. 7 pin connection. There is a black and silver label adhered to the…

[Lear 3-axis servo unit]
Photograph of a Lear 3-axis servo unit, circa 1940s-1950s. Typed caption: "One of the first 3-axis servo units."

[William P. and Moya Olsen Lear Papers, Box 27, Folder 34; Box 200, Folder 3 - Assorted ad sheets and brochures for various Lear Avia products [RM files], undated (circa 1939-1944)]
Items from Box 27, Folder 34 and Box 200, Folder 3 of the William P. and Moya Olsen Lear Papers, circa 1939-1944. Contains assorted ad sheets and brochures for various Lear Avia products. 18 total items.

[William P. and Moya Olsen Lear Papers, Box 27, Folder 4; Box 207, Folder 2 - Product "pitch" letters and price lists, 1940 September - 1941 May]
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…

[William P. and Moya Olsen Lear Papers, Box 24, Folder 4; Box 205, Folder 5 - "Expandable ring clutch (WPL)" [L-D-123], 1943-1944 July]
Items from Box 24, Folder 4 and Box 205, Folder 5 of the William P. and Moya Olsen Lear Papers, July 1943-1944. Contains correspondence, diagrams, memos, and patent copies related to the expandable ring clutch. 27 total items and original folder…

Jettisonable fuel tanks [Patent documents]
Patent documents for jettisonable fuel tanks (2,764,374), designed by Roy H. Anderson, William H. Cook, Jr., and David L. Dunn, September 25, 1956. Includes a written description of the mechanism, diagrams, and a list of related patents. Seventeen…

Airfoil control apparatus responsive to aircraft speed [Patent documents]
Patent documents for an airfoil control apparatus responsive to aircraft speed (patent no. 2,696,355), filed by Thorvold H. Larson, John D. Mayer, Calvin E. Pfafman, William H. Cook Jr., and John F. Kirkbride, December 7, 1954. Includes a written…
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