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• Subject > Aids to air navigation (remove)
• Item Type > Still Image (remove)

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• Still Image (63)

• New York (N.Y.) (1)
• New York (State) (1)
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• photographic prints (56)
• artifacts (5)
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• Copyright undetermined (41)
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• Aids to air navigation (63)
• Radio in aeronautics (41)
• Learadio (35)
• Lear Developments (22)
• Radio--Transmitters and transmission (16)
• Automatic pilot (Airplanes) (11)
• Airplanes--Cockpits (9)
• Lear, Inc. (8)
• Lear, William P. (William Powell), 1902-1978 (7)
• Antennas (Electronics) (5)
• LearAvia Corporation (5)
• Radio direction finders (4)
• Fisher, Herbert O. (3)
• Lear Avia Corporation (3)
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• Beech Bonanza Family (1)
• Canada. Royal Canadian Air Force (1)
• Douglas DC-3 Family (1)
• Lear Avia Inc. (1)
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• MacRobertson International Air Race (1934) (1)
• Nichols, Nichols, Reeder Glen, 1904-1975 (1)
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63 results

[Douglas DC-3 instrument panel with Learadio ADF 8] (Item)

Photograph of a Douglas DC-3 instrument panel with a Learadio ADF 8 automatic direction finder, circa 1940s. The direction finder and two gauges are circled and numbered. Inscription on verso: "Copy of instrument panel (Chicago and [illegible] DC-3)."

[Aircraft instrument panel equipped with Learadio device] (Item)

Photograph of an aircraft instrument panel equipped with a Learadio device, circa 1941.Inscription: "1941. [Amphibian?] with first dry-cell operated trans-rec[cut off]. [illegible] watt. Range 300 miles."

[Learadio Model RCB receiver tuning unit] (Item)

Photograph of a Learadio Model RCB receiver tuning unit, circa 1930s-1940s.

[Learadio radio compass tuning unit] (Item)

Photograph of a Learadio radio compass tuning unit, circa 1930s-1940s.

[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…

[Learadio portable receiver] (Item)

Photograph of a Learadio portable receiver, circa 1930s-1940s.Inscription: "Portable 2-band battery-operated receiver used thru-out WW2 by many USAF [personnel?] here and all over world."

[Learmatic navigator] (Item)

Photograph of a Learmatic navigator, circa 1940s.Inscription: "Learmatic navigator combining directional gyro with adjustable [illegible] and automatic and/or manual loop [rotator?]."

[Learadio automatic direction finder] (Item)

Photograph of a Learadio automatic direction finder, circa 1940.Inscription: "Manual loop antenna rotator and directional indicator. 1940."

[Beech Bonanza instrument panel outfitted with Lear equipment] (Item)

Photograph of a Beech Bonanza instrument panel outfitted with Lear VHF Omnimatic navigating equipment and a Lear Orienter, circa 1950s-1960s.Typed caption: "Installation of Lear Orienter and Lear VHF Omnimatic navigating equipment in Bonanza Panel. Lear, Inc. Grand Rapids, Mich. Page 43."

[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."