Union Pacific Big Boy No. 4014 leads an excursion consist passed Granger, Wyo., in May 2019. Though limited, Union Pacific is allowing limited excursions behind the giant steam locomotive. Justin Franz Q: After 150th Golden Spike excursion, will there be other chances to ride the Big Boy 4014? — Daniel Miltenberger, Jacksonville, Fla. A: Union […]
A side view of Union Pacific Big Boy No. 4014 on a test run in May 2019. TRAINS: Jim Wrinn Q: With interest in the completion Union Pacific’s Big Boy’s restoration, how does the weight of the boiler get down to the front drivers? — Carl Amerlan, Downers Grove, Ill. A: Great question! As an […]
Union Pacific Big Boy 4-8-8-4 No. 4014 arrives in downtown Cheyenne, Wyo., on May 4, 2019. The locomotive was chosen for restoration for a variety of reasons. TRAINS Staff Q: I may have missed it, but why was UP 4014 picked over all other displayed Big Boys? — Tom Otoski, Dayton, Ohio A: A combination […]
Union Pacific Big Boy 4-8-8-4 No. 4014 on a test run in Cheyenne, Wyo., on May 2, 2019. TRAINS: Jim Wrinn Q: How were the Big Boys originally delivered to Union Pacific? — David Kuntz, Salt Lake City A: The exact original routings of the Big Boys have been lost to history, but we have […]
This blue roller bearing cap is a Brenco Class K 6 1⁄2 x 9 model. These are more common as half of the freight-car fleet is made of heavier cars. Bucyrus Railcar Repair Q Why are the roller bearing caps of some freight cars painted blue? – Nathan Penn, Monmouth, Ill. A In 1988, the […]
A CSX Transportation freight passes Marion (Ohio) Union Station. The site is now a museum with a restored interlocking tower. Brian Schmidt Q Why is the word “Union” used so often in the names of passenger stations and terminals? For example, Cincinnati Union Terminal, St. Louis Union Station, or Denver Union Station. Is there a […]
A train-view of a flyover at Zoo Interlocking in Philadelphia. Brian Solomon Question: Where are some other mainline flyovers in the U.S.? — Frank Klos, San Diego, Calif. Answer: A flyover is grade-separated track arrangement used to keep busy lines fluid by avoiding the need for conflicting crossover movements, often built in conjunction with junctions […]
Question: What do the numbers and letters mean on the side of the cab of Union Pacific Challenger 4-6-6-4 No. 3985? — Ben Fairbank, San Antonio, Texas Answer: 21 – 21 4-6-6-4-4-69 ————— 404 UP […]
Classification lights on Dakota, Minnesota & Eastern SD40-2 No. 6090. David C. Schauer Question: When a train displays color flags on the engine indicating “Extra” or “Second” section, how is that information used in the operation of the railroad? — Robert Miller, Hernando, Fla. Answer: A complete answer is available in Trains’ online “ABCs of […]
BNSF Railway ES44C4 No. 8338 works at the lead of a freight train. The locomotive’s C4 trucks have only two powered axles in the three-axle trucks arranged in a powered-unpowered-powered arrangement known as A-1-A. Tom Danneman Question: What is the purpose of the A-1-A C4 truck on the BNSF Railway Evolution Series diesels, and how […]
What appears to be an Omaha Orange and Pullman Green Great Northern Railway EMD SD9 in 2017 actually is a BNSF Railway unit that had been built in 1959 for Chicago, Burlintgon & Quincy subsidiary Colorado & Southern. For several years, BNSF has assigned Great Northern “GN” reporting marks to some older diesels generally assigned […]
BNSF Railway distributed power pushes an eastbound empty coal train at Hathaway, Mont., in June 2014. Tom Danneman Q In two recent issues, Trains stated that distributed power helps maintain trainline air for brakes. How can this be without giving up lead unit control of the brakes? – Jay Noyes, Lowell, Ind. A In distributed […]
