American Propeller and Mfg Co. Propeller, fixed-pitch, two-blade, wood
date: label: Date
content: 1908
name: label: Manufacturer
content: American Propeller and Manufacturing Company
notes: label: Physical Description
content: Type: Two-Blade, Fixed-Pitch, Wood
label: Physical Description
content: Diameter: 335.3 cm (132 in.)
label: Physical Description
content: Chord: 35.6 cm (14 in.)
label: Physical Description
content: Engine Application: Curtiss, 17.9 kw (24-hp), 4-cyclinder, water-cooled
label: Summary
content: An early predominant manufacturer in the United States, Spencer Heath's American Propeller and Manufacturing Company opened in Baltimore in 1909. Heath was first to use machines for mass production of aircraft propellers and, under the Paragon trademark, these were widely used in World War I. Like most propellers of that era, construction was a wood laminate because of light weight, strength, fabrication ease, and resistance to fatigue in a vibrating and flexing environment.
label: Summary
content: Heath demonstrated the first "engine-powered, engine-controlled, variable and reversible pitch propeller" in 1919, but was unsuccessful in convincing the Army of the practicality of the concept. He sold the company to the Bendix Corporation in 1929 and retired from aeronautics two years later.
label: Summary
content: This propeller was thought to be used on the Army's first airship, a Curtiss-Baldwin of 1908.
place: label: Country of Origin
content: United States of America
setName: label: See more items in
content: National Air and Space Museum Collection
label: Location
content: National Air and Space Museum in Washington, DC
label: Exhibition
content: Early Flight
creditLine: label: Credit Line
content: Gift of Mr. Gould Dietz
dataSource: label: Data Source
content: National Air and Space Museum
identifier: label: Inventory Number
content: A19490047000
objectType: label: Type
content: PROPULSION-Propellers & Impellers
objectRights: label: Restrictions & Rights
content: CC0
physicalDescription: label: Materials
content: Wood
label: Dimensions
content: Rotor/Propeller: 335.3 x 35.6 x 17.1 x 1cm (11 ft. x 14 in. x 6 3/4 in. x 3/8 in.)