One museum, two locations
Visit us in Washington, DC and Chantilly, VA to explore hundreds of the world’s most significant objects in aviation and space history. Free timed-entry passes are required for the Museum in DC.
Visit
National Air and Space Museum in DC
Udvar-Hazy Center in VA
Plan a field trip
Plan a group visit
At the museum and online
Discover our exhibitions and participate in programs both in person or virtually.
What's On
Events
Exhibitions
IMAX and Planetarium
Dive deep into air and space
Browse our collections, stories, research, and on demand content.
Explore
Stories
Topics
Collections
On demand
For researchers
For teachers and parents
Bring the Air and Space Museum to your learners, wherever you are.
Learn
Programs
Learning resources
Plan a field trip
Educator professional development
Education monthly theme
Be the spark
Your support will help fund exhibitions, educational programming, and preservation efforts.
Give
Become a member
Wall of Honor
Ways to give
Host an Event
Propeller, Fixed-Pitch, Two-Blade, Wood
From the known history of the World War I era and the artifact markings, this is likely a right-hand tractor Lang propeller for the single engine U.S. Navy VE-7 Bluebird multi-purpose aircraft built by the Lewis and Vought Corporation.
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. 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
Physical Description
Type: Two-Blade, Fixed-Pitch, Wood
Diameter: 264.2 cm (104 in.)
Chord: 19.1 cm (7.5 in.)
Engine Application: Hispano Suiza 134 kw (180 hp)
Dimensions
Rotor/Propeller: 264.2 x 19.1 x 22.9 x 1.3 x 5.7cm (104 x 7 1/2 x 9 x 1/2 x 2 1/4 in.)
3-D: 264.2 x 22.9 x 19.7cm (104 x 9 x 7 3/4 in.)
Materials
Wood
Paint
Varnish
Copper Alloy
Steel
Inventory Number
A19690165000
Data Source
National Air and Space Museum
Restrictions & Rights
Usage conditions apply
For more information, visit the Smithsonians Terms of Use.
Stay up to date on the latest stories and events with our newsletter
Privacy
Terms of Use