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National Air and Space Museum Collection
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.
Transferred from the Smithsonian Institution to the United States National Museum.
Country of Origin
United States of America
Copper Alloy; Mica; Asbestos
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.)
National Air and Space Museum
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