Model biplane with coil on lower wing
date: label: date made
content: 1918
label: associated date
content: 1920
name: label: associated institution
content: Bureau of Standards
label: maker
content: National Bureau of Standards
notes: label: Description (Brief)
content: A wooden biplane model with a cloth-insulated wire wrapped around the outer edge of the lower wing. Wire attaches to metal leaves mounted on the upper wing. World War I era US markings on both wings, striped vertical stabilizer. Copper propeller. Landing gear braces on bottom without wheels.
label: Description (Brief)
content: Exhibition label: "Model airplane used to demonstrate field localizer for airplane landing. Experiments carried on at College Park, Md. for the Air Mail Service in 1918, to provide signals that would indicate to an aviator flying in fog the exact location of the landing field. A single turn of wire carrying 500-cycle current was laid around the boundary of the landing field. The signal was received on the airplane by means of a coil wound on the lower wing. It worked well at heights up to 3000 feet."
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: U.S. Department of Commerce, National Bureau of Standards
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.313594
label: catalog number
content: 313594
label: accession number
content: 188571
objectType: label: Object Name
content: Model Airplane
label: Object Name
content: radio demonstration
label: Other Terms
content: Airplane Model; Model Airplane; Radio
physicalDescription: label: Physical Description
content: wood; copper; paint (overall material)
label: Measurements
content: overall: 8 in x 21 in x 22 1/2 in; 20.32 cm x 53.34 cm x 57.15 cm