Transferred from the Smithsonian Institution to the United States National Museum.
Country of Origin: United States of America
3-D: 60.3 x 21.9 x 2.5cm (23 3/4 x 8 5/8 x 1 in.)
Storage: 67.9 x 47.9 x 4.4cm (26 3/4 x 18 7/8 x 1 3/4 in.)
Unidentified wood; Original Varnish
Airfoil section used on Langley whirling arm. Symmetrical curve with maximum thickness of 1 inch (2.5 cm) at center. Made up of two pieces with flat bottom glued together. Tapers to knife-edge at both leading and trailing edges of airfoil and a preservative coating. Other Mataerials: Adhesive, Mylar (Polyester)