Welded aircraft engine mount tubes

Narrator: Builders of peacetime commercial airplanes, with characteristic foresight, were not slow in adopting arc welding, for it meant more dependability and less dead weight, essentials in the manufacture of aircraft. A lighter plane made higher speeds possible, and greater strength increased the safety. On these slender tubes of steel are mounted the powerful engines that drive the plane. You'd hardly believe they could support the heavy power plant, but they do, because they're welded.

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