Arkivism
Mitchell Field. Business end of a bomber engine. The controllable pitch housing in the propeller hub assembly contains the mechanism that automatically adjusts the set of the three propellers
Public domain

Mitchell Field. Business end of a bomber engine. The controllable pitch housing in the propeller hub assembly contains the mechanism that automatically adjusts the set of the three propellers

Palmer, Alfred T., United States. Office Of War Information · 1942-01-01 · photo, print, drawing

From the collection of Library of Congress. Free to download, adapt and use — no permission needed.

Credit lineMitchell Field. Business end of a bomber engine. The controllable pitch housing in the propeller hub assembly contains the mechanism that automatically adjusts the set of the three propellers. 1942-01-01. Palmer, Alfred T., United States. Office Of War Information. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.

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