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You searched for: Format Moving Image Remove constraint Format: Moving Image Main contributor Tharp, Grahame, 1912- Remove constraint Main contributor: Tharp, Grahame, 1912- Language English Remove constraint Language: English
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1. Airscrew (21:07)

Date:
1940
Main contributors:
Tharp, Grahame, 1912-
Summary:
This short nonfiction film depicts the intensive testing that goes into developing and producing aircraft propellers. It opens with the whirring or propeller blades. Animated diagrams show how the ...