Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer

When the United States entered World War I in 1917, it committed itself to an ambitious aviation production program. Part of that program involved the establishment of a dedicated military aeronautical research and development facility to be operated by the newly formed Engineering Division of the United States Army Air Service at McCook Field in Dayton. The propeller unit was the first Engineering Division branch to open at McCook in December 1917. It dealt with enhancing the efficiency and durability of propellers for military aircraft.

This artifact is one of a number of old propellers chosen by the museum's earliest curator, Paul Garber, from a collection at the Langley Field installation of the National Advisory Committee for Aeronautics in 1931.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Country of Origin United States of America Type PROPULSION-Propellers & Impellers Manufacturer United States Army Air Service, Engineering Division
 Physical Description Type: Two-Blade, Fixed-Pitch, Wood Engine Application: Mercedes, 133 kw (178 hp) Dimensions 3-D (Propeller): 280 × 26 × 14cm, 16.3kg (9 ft. 2 1/4 in. × 10 1/4 in. × 5 1/2 in., 36lb.)
Storage (Aluminum Pallet): 301 × 123.2 × 83.8cm, 175.5kg (9 ft. 10 1/2 in. × 4 ft. 1/2 in. × 2 ft. 9 in., 387lb.)
 Materials Laminated wood, Doped fabric, Steel, Solder, Paint, Museum Varnish
 Inventory Number A19320054000 Credit Line Gift of National Advisory Committee of Aeronautics, Langley Field, Hampton, Va. Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
For more information, visit the Smithsonians Terms of Use.