Competition Aircraft Inc, founded in 1980 by Jack Venaleck, is an American manufacturer of composite propellers for ultralight aircraft. The company headquarters is located in Grass Valley, California.Purdy, Don: AeroCrafter - Homebuilt Aircraft Sourcebook, page 83. BAI Communications.
Competition Aircraft started as a subsidiary of Associated Enterprises of Painesville, Ohio. The company started producing aircraft propellers in 1983 under the Ultra-Prop brand. The company produces propellers with up to six blades.
See also List of aircraft propeller manufacturers
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