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This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Date 1887-1903 Country of Origin United States of America Type EQUIPMENT-Test Manufacturer Smithsonian Institution
 Physical Description Double-coiled horizontal copper tubing. One tube end protrude from the right side. This object seems to represent a change in boiler design. The piping is roughtly twice as thick than in previous development attempts. Also there is evidence of insulation use; this is reflected in the original photograph in Langley's "Memoir of Mechanical Flight" as boiler type "O", featured in the "Boilers of Aerodromes" picture template. The photograph shows more extensive insulation on the object's left side. The object in question is the original object used in the Langley memoir photograph. Dimensions 3-D: 32.7 x 8.3 x 6.7cm (12 7/8 x 3 1/4 x 2 5/8 in.)
Storage: 39.4 x 14.3 x 9.5cm (15 1/2 x 5 5/8 x 3 3/4 in.)
 Materials Copper Alloy; Mica; Asbestos
 Inventory Number A19820845000 Credit Line Transferred from the Smithsonian Institution to the United States National Museum. Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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