big-fourhttps://www.trains.com/ctr/photos-videos/photo-of-the-day/big-four/Big Four - Trains[...]Read More...https://www.trains.com/wp-content/uploads/2022/03/MRR-MQB0422_Big-Four-4-4-0-and-dynamometer-car.jpgInStockUSD1.001.00photo-of-the-dayphotos-videosarticleCTR2023-11-272024-02-16178759
The very first railroad dynamometer car – a car equipped with sensitive hydraulic instrumentation to measure locomotive drawbar pull – was built in 1898 by the University of Illinois and the Peoria & Eastern Ry., then a subsidiary of the Cleveland, Cincinnati, Chicago & St. Louis. Note the “Big Four” emblazoned on the dynamometer car and the tender of the 4-4-0. David P. Morgan Library collection