Sound and DCC - Paragon2. In 1930, the celebrated success of the M1 Mountain-type locomotives prompted the Pennsylvania Railroad to order 100 more locomotives of the 4-8-2 wheel arrangement.
The new locomotives became the M1a class and had a longer wheelbase than the M1's due to the addition of the Worthington feedwater heater. They also received new larger tenders, class 210F75, which became known as the coast-to-coast tenders. The first 50 M1a locomotives, #6700 - 6749, were built by Baldwin.
The Juniata Shops, which became knows as te "Altoona Works, " built the next 25 M1a's numbered 6750 - 6774, and the remaining 25 M1a's were built by Lima and were numbered 6775 - 6799. Starting in 1946, 41 of the M1a's received further improvements by increasing the boiler pressure and adding circulators to the firebox. The improved M1a's became the M1b class.
The best way to tell them apart is to look for the circulators on the firebox just above the running boards. The circulators are those round objects in a diagonal line that look like wash-out plugs. The PRR M1a/b's were considered to be the finest of the PRR's steam locomotives.
And in the end, they even hauled the heavy ore trains, which there were not originally intended to pull. They did it all in style! We are an authorized dealer for Athearn, Walthers, Bowser Trains, Horizon Hobby, Tangent Scale Models, Con-Cor, Heartland Hobby, Stevens International Hobbytyme, Commonsense RC, Great Planes, Hobbico, Buddyrc and Intermountain Railway Company. If you don't see it here please ask if we can order it for you.Inventory is constantly updated, but we also have a store open to the public that may cause the unavailability of the item when ordering on line. We would ask that once you receive your package you rate us as well. Thank you, Shaffer's Train Shed. Be sure to add me to your favorites list. Check out my other items. The item "Broadway Limited # 3076 PRR M1b 4-8-2 #6704 Post-War Paragon2 Sound/DC/DCC N MIB" is in sale since Thursday, April 9, 2020. This item is in the category "Toys & Hobbies\Model Railroads & Trains\N Scale\Locomotives". The seller is "shafferstrainshed158" and is located in Altoona, Pennsylvania.
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