Harry and Martin Sensenich, Lancaster, Pennsylvania farm boys, constructed an air driven farm wagon using an old World War I aircraft engine and propeller. Lacking funds to repair the propeller following an accident, they borrowed tools from their father and built their own. From this experience, the Sensenich Brothers Company was born in 1932.

During World War II, with experience from volume production for military trainer aircraft, Sensenich became the largest manufacturer of wooden, fixed-pitch propellers for light aircraft. In 1948 the company also began producing metal-fixed-pitch propellers for general aviation. More recently Sensenich introduced ground adjustable composite propellers. Aircraft manufacturers using Sensenich propellers include Piper, Murphy, Diamond, Cessna, and Beech.

This propeller powered the Piper L-4B Grasshopper used for various military duties during WW II.

 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 Sensenich Brothers
 Physical Description Type: Two-Blade, Fixed-Pitch, Wood Diameter: 182.9 cm (5.56 in.) Chord: 14.1 cm (5.56 in.) Engine Application: Continental A-65-8 Dimensions Rotor/Propeller: 182.9 x 14.1 x 16.5 x 8.6 x 1 x 5.7cm (72 x 5 9/16 x 6 1/2 x 3 3/8 x 3/8 x 2 1/4 in.)
3-D: 177.2 x 15.6 x 7.6cm (69 3/4 x 6 1/8 x 3 in.)
 Materials Wood
Natural Fabric
Copper Alloy
Paint
 Inventory Number A19690158000 Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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