Identifier1990-10-26_image_017Parts1990-10-26_image_017_01SourceThe Robert W. Radoll Early Aviation Collection (1990-10-26), Nat Photos 2 FolderDescriptionPhotograph of National Air Transport mechanics testing a Liberty aircraft engine, 1927. The engine is being prepared for a three-hour test run before being returned to service. For this test, a testing 'club' giving the same load on the motor without causing the disturbance an actual propeller would create, is used in place of the propeller.Creation Date1927SubjectAirplane enginesAviation mechanics (Persons)National Air TransportExtent1 photograph : print, black and white ; 10 x 8 in.Original Formatphotographic printsBibliographic CitationThe Robert W. Radoll Early Aviation Collection/The Museum of FlightRightsNo copyright - United States
[Mechanics testing Liberty aircraft engine], [1990-10-26_image_017]. Museum of Flight Digital Collections, accessed 07/10/2026, https://digitalcollections.museumofflight.org/nodes/view/1595