The 10 Most Over Engineered Trains

From a railcar with an actual airplane propeller bolted to the back, to a steam giant that couldn't outrun a jogger, these are the ten most gloriously over-built locomotives in railroad history. We're counting down the Pennsylvania S1, the Baldwin Centipede, the Erie Triplex, the propeller-driven Schienenzeppelin, the C&O and Norfolk & Western steam turbines, Britain's doomed tilting APT, Union Pacific's jet-powered gas turbines, the massive DDA40X Centennial, and the legendary Big Boy. Brilliant engineering, terrible timing, and a few machines that should probably never have left the drawing board. Subscribe for more deep dives into the most ambitious, absurd, and unforgettable machines that ever ran on rails.