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Engines_17

Published September 12, 2014 at 1000 × 667 in Engines
First produced in 1936, the DC-3 was the plane that made air travel popular with the public. On previous models, the sound of the internal combustion engine had been almost unbearably loud. Soundproofing made flying on the DC-3 much more comfortable. (Shutterstock / Pi-Lens)

First produced in 1936, the DC-3 was the plane that made air travel popular with the public. On previous models, the sound of the internal combustion engine had been almost unbearably loud. Soundproofing made flying on the DC-3 much more comfortable. (Shutterstock / Pi-Lens) Read More

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