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airplane motors

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tests motors

united states history

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Tests motors by synthetic cold. C.D. Bruce, of the automotive power plant section of the Bureau of Standards, makes a test of airplane motors to show how much coldness they can stand due to high altitude. The testing pipes get as cold as 53 degrees below zero. 123030

Tests motors by synthetic cold. C.D. Bruce, of the automotive power pl...

A black and white photo of a man in a room, Library of Congress Harris and Ewing collection Title from unverified caption data on negative or negative sleeve. On sleeve: Watch Your Credit Line. Gift; Harris & ... More

Tests motors by synthetic cold. C.D. Bruce, of the automotive power plant section of the Bureau of Standards, makes a test of airplane motors to show how much coldness they can stand due to high altitude. The testing pipes get as cold as 53 degrees below zero. 12/30/30

Tests motors by synthetic cold. C.D. Bruce, of the automotive power pl...

Public domain photograph, 1910s-1920s portrait, American, free to use, no copyright restrictions image - Picryl description