EMD GP9: The Best-Selling Geep That Changed American Railroads

EMD GP7: The Diesel Locomotive That Changed American Railroads

EMD E8: The Diesel That Helped End Steam Passenger Service

New York Central Niagara: The Ultimate Steam Locomotive That Came Too Late

EMD FT: The Locomotive That Made Every Steam Giant Obsolete

Allegheny: More Powerful Than Big Boy — Still Not Powerful Enough to Survive

PRR T1 Duplex: The Steam Locomotive That Wanted to Break Every Speed Record

Yellowstone Locomotive: The Forgotten Giant That Rivaled Big Boy

Y6b Steam Locomotive: The Engine That Refused to Die

Allegheny: The Steam Locomotive More Powerful Than Big Boy

Union Pacific Challenger: The Locomotive That Made Big Boy Possible

Why GM Killed the Wankel Rotary Engine — But Mazda Sold 800,000

Big Boy Locomotive: It Outran Everything. Then a Spreadsheet Ended It.

ALCO DL-109: The Locomotive That Proved GM Wrong — and Was Abandoned Anyway

The Most Efficient Steam Locomotive Ever Built — And Why It Killed Its Own Maker

Studebaker Built the Most Advanced Car in America — Then a 100 Year Old Debt Killed It

Fairbanks-Morse: The Diesel Engine That Was Too Powerful to Survive

Detroit Diesel's 2-Stroke: The Engine That Refused to Die

Baldwin Locomotive Works: The Company That Refused to Believe Steam Was Over