Public domain
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
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Subjects
Credit lineTests 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 altit. 1930-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.
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