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Lang Propeller, Fixed-Pitch, Two-Blade, Wood
Lang Propellers was a leading British manufacturer of the World War I period. Dashwood Lang took out a patent in 1909 for “an improved formation of the blades of propellers for use on airships and aircraft where greater efficiency is secured.” The curvature of blades having a “convex side and a flat side” was described in the patent application. In 1913, the organization was known as Lang Garnett & Co. Ltd, but quickly became Lang Propeller Ltd. Lang was a principal supplier to Sopwith, and was bought out by that well known aircraft builder in early 1917.
But when the United States entered World War I, the Navy needed propellers in high volume and provided funds for Dashwood Lang to found the Lang Propeller Company of America in August 1917.
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
Lang Products Co.
Physical Description
Type: Two-Blade, Fixed-Pitch, Wood
Diameter: 289.6 cm (114 in.)
Chord: 30.5 cm (12 in.)
Engine Application: Unknown
Dimensions
Rotor/Propeller: 289.6 x 30.5 x 27.9 x 18.4 x 12.7 x 6.4cm (114 x 12 x 11 x 7 1/4 x 5 x 2 1/2 in.)
3-D: 290.2 x 30.5 x 21cm (114 1/4 x 12 x 8 1/4 in.)
Materials
Wood
Copper Alloy
Steel
Varnish
Glass
Paper
Adhesive
Paint
Felt
Inventory Number
A19690132000
Data Source
National Air and Space Museum
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