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• Item Type > Mixed Materials (remove)
• Subject > Aids to air navigation (remove)

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• Mixed Materials (5)

• press releases (2)
• advertisements (1)
• booklets (1)
• brochures (1)
• clippings (1)
• patents (1)
• photographic prints (1)
• speeches (documents) (1)
• technical drawings (1)

• In copyright (5)

• Aids to air navigation (5)
• Lear Avia Corporation (2)
• Lear Avia, Inc. (2)
• Lear, William P. (William Powell), 1902-1978 (2)
• Radio in aeronautics (2)
• Airplanes--Parts (1)
• Aviation Writers Association (1)
• Gyroscopes (1)
• Lear, Inc. (1)
• Messerschmitt Bf 109 Family (1)
• Navigation (Aeronautics) (1)
• Radio direction finders (1)
• Radio--Transmitters and transmission (1)
• World War, 1939-1945 (1)

5 results

[William P. and Moya Olsen Lear Papers, Box 27, Folder 7 - Learmatic gyromatic navigator, 1940 December] (Item)

Items from Box 27, Folder 7 of the William P. and Moya Olsen Lear Papers, December 1940. Contains two clippings and a press release related to William P. Lear's receipt of the Frank Hawks Memorial Trophy for developing the Learmatic gyromatic navigator. Three total documents and original folder labeled "Publicity re 'Learmatic' / L-p-5."

[William P. and Moya Olsen Lear Papers, Box 27, Folder 23 - Captured Me109 radio equipment evaluation by WPL, 1941 July 24] (Item)

Items from Box 27, Folder 23 of the William P. and Moya Olsen Lear Papers, July 24, 1941. Contains a press release and eight captioned photographs related to William P. Lear's evaluation of German radio equipment taken from a captured Messerschmitt Bf 109 aircraft. The photographs depict Lear and Lear Avia engineers carrying out tests on the radio equipment, as well as close-up shots of the…

[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)] (Item)

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 50, Folder 11 - "Aviation radio before, during, and after the war" -- WPL speech, 1945 March 7] (Item)

Items from Box 50, Folder 11 of the William P. and Moya Olsen Lear Papers, March 7, 1945. Contains a typed copy of speech delivered by William P. Lear to the Aviation Writers Association and booklet with a slightly edited version of the speech. The speech focuses on Lear's ongoing development of aviation radio devices. Two total documents.

[William P. and Moya Olsen Lear Papers, Box 18, Folder 2; Box 200, Folder 2 - "Radio direction finding system (Case 20-1)" -- patent application [RM files], 1940-1943] (Item)

Items from Box 18, Folder 2 and Box 200, Folder 2 of the William P. and Moya Olsen Lear Papers, circa 1940-1943. Contains documents and drawings related to the patent application of the radio direction finding system (Case 20-1). 24 total items.