The Flottorp Manufacturing Company of Grand Rapids, Michigan was founded in 1912, making it one of the world’s oldest propeller producers. Its founder, Ole Flottorp, was born in Norway, and built his first propeller in 1910. The company built about 175 models of fixed and controllable pitch wood propellers, and was a U.S. Government contractor during World War I. In the late 1950s, Flottorp was acquired by the Univair Aircraft Corporation of Aurora, Colorado.

This propeller hung in the Aero Club of Nebraska and contains the signatures of several pioneer aviators.

 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 Flottorp Manufacturing Co.
 Physical Description Type: Two-Blade, Fixed-Pitch, Wood Diameter: 254 cm (100 in.) Chord: 20.3 cm (8 in.) Engine Application: Curtiss OX-5 Dimensions Rotor/Propeller: 254 x 20.3 x 19.1 x 10.2 x 7 cm (100 x 8 x 7 1 /2 x 4 x 2 3/4 in.)
 Materials Wood
Varnish
Copper Alloy
Nickel Plating
Ink
 Inventory Number A19490048000 Credit Line Gift of Mr. Gould Dietz Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
For more information, visit the Smithsonians Terms of Use.