Test Propeller, Langley

Transferred from the Smithsonian Institution to the United States National Museum.

Physical Description:
Overall: Fixed-pitch, two-blade Laminated Wood; Hub Reinforcement: Steel; Coating: Original Varnish. Small propeller used for aerodynamic testing only. Not used for flight trials on aircraft or models. Constructed from narrow wooden strips glued together similar to boat planking and then sanded to a smooth airfoil cross section. Tips reinforced with paper. Hub reinforced with a 1/16 inch (0.2 cm) thick metal plate mounted with screws, on one side only. Shaft hole reinforced with metal tube. There is evidence of original varnish and adhesive material.

Country of Origin
United States of America

Manufacturer
Smithsonian Institution

Date
1887-1903

Type
PROPULSION-Propellers & Impellers

Materials
Unidentified wood, Paper, Steel
Dimensions
Rotor/Propeller: 52.1 x 6.4 x 13.3cm (20 1/2 in. x 2 1/2 in. x 5 1/4 in.)
Storage: 28.58 x 12.07 x 58.42cm (11 1/4in. x 4 3/4in. x 1ft 11in.)

Transferred from the Smithsonian Institution to the United States National Museum.

Physical Description:
Overall: Fixed-pitch, two-blade Laminated Wood; Hub Reinforcement: Steel; Coating: Original Varnish. Small propeller used for aerodynamic testing only. Not used for flight trials on aircraft or models. Constructed from narrow wooden strips glued together similar to boat planking and then sanded to a smooth airfoil cross section. Tips reinforced with paper. Hub reinforced with a 1/16 inch (0.2 cm) thick metal plate mounted with screws, on one side only. Shaft hole reinforced with metal tube. There is evidence of original varnish and adhesive material.

Country of Origin
United States of America

Manufacturer
Smithsonian Institution

Date
1887-1903

Type
PROPULSION-Propellers & Impellers

Materials
Unidentified wood, Paper, Steel
Dimensions
Rotor/Propeller: 52.1 x 6.4 x 13.3cm (20 1/2 in. x 2 1/2 in. x 5 1/4 in.)
Storage: 28.58 x 12.07 x 58.42cm (11 1/4in. x 4 3/4in. x 1ft 11in.)

ID: A19820606000