The last compound Mallet locomotives to operate on major railroads in the United States were the 2-8-8-2 Y6b class of the Norfolk and Western Railway. After their final modifications in the …

1950: PRR leased five steam locomotives from the Norfolk & Western for use between Columbus and Sandusky.

Y型2-8+8-2式“切萨皮克”蒸汽机车是美国诺福克&西部铁路（外文名：Norfolk & Western Railway）使用的“马莱”型铰接式蒸汽机车，主要用来牵引货运列车。 自1910年首台2-8+8-2 …

The Norfolk and Western Class Y6b was a class of 2-8-8-2 Mallets built between 1948-1952 with a total of 30 examples built for the Norfolk and Western Railway. The Y6b was known as the …

As Locobases 67, 5153, and 15921 show, the PRR found its superheavyweight freight hauler answer in the I1 series of 2-10-0s that premiered in 1916. Their boilers were worked hard, but …

HP piston valves measured 14" (356 mm) in diameter while the LP valves had an 18" (457 mm) bore. Greg Mills noted in his 30 March 2018 email that the Y6b used "variable valve plumbing" …

2023年2月24日 · The Norfolk & Western had massive 2-8-8-2 locomotives in their Y class (Y3, Y6b) that were designed to haul huge coal trains up and over the mountains, usually in the …

Deliveries of Y6b's began in 1936 and were constructed in the railroad's own Roanoke Shops-a big boom to the local economy. This class was designed to pull very heavy trains at an …

2020年3月15日 · Information on the four leased Y6b's (2182, 2185, 2186 & 2187) and Y6 No. 2130 can be found on page 62. There is a photo of 2185 on the Sandusky Branch in 1950 on …

2005年4月21日 · PRR did in fact run Y-6B's. They didn't own them, they did own a piece of N & W. So these were leased engines used when the PRR needed additional horsepower. Since …