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

Under the supervision of Dr. William F. Durand, this adjustable-pitch propeller was constructed for propeller efficiency testing in the Stanford University wind tunnel from 1917 to 1927. The adjustable-pitch feature was used to facilitate ease of testing, since a new fixed-pitch propeller did not have to be constructed for each potential blade angle.

Dr. Durand was a graduate of the U.S. Naval Academy and taught at Michigan State University, Cornell University and Stanford University. He made substantial contributions to the development of aircraft propellers, and was the second chair of the National Advisory Committee for Aeronautics, the predecessor of NASA.

 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 Stanford University
 Physical Description Type: Two-Blade, Adjustable-Pitch, Wood Engine Application: Unknown Dimensions 3-D (Propeller): 91.4 × 11.4 × 16.5cm, 4.1kg (3 ft. × 4 1/2 in. × 6 1/2 in., 9lb.)
3-D (Bolt): 10.8 × 1.3cm (4 1/4 × 1/2 in.)
Storage (Aluminum Pallet): 275.6 × 122.6 × 86.4cm, 161.5kg (9 ft. 1/2 in. × 4 ft. 1/4 in. × 2 ft. 10 in., 356lb.)
 Materials HAZMAT: Cadmium
Brass, Maple, Original Varnish
 Inventory Number A19510051000 Credit Line Gift of Stanford University Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
For more information, visit the Smithsonians Terms of Use.