Electrified Locomotives, Tunnels, and the Pennsylvania Railroad, Part 2: The tunnels

Part 1 of this article established the context of the problem and why it had defied solution for so long. Once electric locomotives became a viable source of motive power, the tunnel project moved ahead with astonishing speed. The tunnel defies the critics Critics said it couldn't be done, and they had reason to say […] The post Electrified Locomotives, Tunnels, and the Pennsylvania Railroad, Part 2: The tunnels appeared first on Electrical Engineering News and Products.