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12 results

[William P. and Moya Olsen Lear Papers, Box 4, Folder 30 - "Descriptive specifications of Learadio Lear-O-Scope Model LC 100 Radio Compass Direction Finder," circa 1931-1939] (Item)

Items from Box 4, Folder 30 of the William P. and Moya Olsen Lear Papers, circa 1931-1939. Contains two reports related to the Learadio Lear-O-Scope Model LC 100 Radio Compass Direction Finder.

[Aircraft instrument panel outfitted with Learadio equipment] (Item)

Photograph of an aircraft instrument panel outfitted with Learadio equipment, circa 1931-1939. Two arrows point to the direction indicator and the interphone and radio transmit control switch.Inscription: "NA-44 / Learadio equipment installation / Front cockpit. 20.1171/33."

[Aircraft cockpit outfitted with Learadio equipment] (Item)

Photograph of an aircraft cockpit outfitted with Learadio equipment, circa 1931-1939. Arrows point to the microphone and support and the interphone and radio transmit control and jack box.Inscription: "NA-44 / Learadio equipment installation / Rear cockpit. 20.1171/33."

[Aircraft instrument panel outfitted with Learadio equipment] (Item)

Photograph of an aircraft instrument panel outfitted with Learadio equipment, circa 1931-1939.

[William P. Lear with first Lear-o-Scope] (Item)

Photograph of William P. Lear with the first Lear-o-Scope, circa 1935.Inscription: "1935. WPL with 1st Lear-o-scope."

[Betsy Ross using Learadio portable receiver] (Item)

Photograph of pilot Betsy Ross using a Learadio portable receiver in the cockpit of her Taylorcraft aircraft, August 20, 1940. An accompanying press release describes Ross's recent flight from Harrisburg Pennsylvania State Airport, noted as the first light plane altitude flight ever recognized by the National Aeronautics Association. It also describes the Learadio receiver installed in Ross's…

[Instrument panel outfitted with Learadio equipment] (Item)

Photograph of an instrument panel outfitted with Learadio equipment, circa 1940s-1960s. Several of the instruments are labeled.Caption: "NA-44. Learadio equipment installation. Rear cockpit. Direction indicator. Transmitter power supply - Type T-30-AB. Receiver output tuning indicator. Automatic compass receiver I.F. unit Type ADF-6."

Learadio automatic landing field orientation device (Item)

Report about the Lear Developments automatic landing field orientation device, June 1939. Contains technical details about the device. Three typed pages on Learadio letterhead.

Learadio aircraft radio equipment [pamphlet] (Item)

Pamphlet about Learadio aircraft radio equipment, circa 1930s. Contains technical specifications and images of various models of transmitters, receivers, power supplies, and accessories. 41 pages.

[Brochure for Learadio Model T30-R3AB aircraft transmitter-receiver] (Item)

Brochure for the Learadio Model T30-R3AB aircraft transmitter-receiver, circa 1939.