Amtrak’s P40s

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Amtrak P40s that didn’t make the first cut for rebuilding wait their turn in Bear, Del., on June 7, 2010. Bob Johnston Q Whatever became of Amtrak’s P40s? They were numbered in the 800 series and looked very similar to the P42s in service today. What’s the difference between them? Does Amtrak still have any […]

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Ask MRVP: Episode 36

David Popp and co-host Charlie Conway have a conversation while standing in front of the N scale Canadian Canyons layout.

Having trouble viewing this video?   Please visit our Video FAQ page Host David Popp brings out the Hawaiian shirt and special co-host for this summertime episode of Ask MRVP! MRVP’s own Charlie Conway rides along to help answer your inquires related to trackwork, pink insulation foam board, wiring, scenery, and more. Watch, learn, enjoy, […]

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Ask MRVP: Episode 36

David Popp and co-host Charlie Conway have a conversation while standing in front of the N scale Canadian Canyons layout.

Having trouble viewing this video?   Please visit our Video FAQ page Host David Popp brings out the Hawaiian shirt and special co-host for this summertime episode of Ask MRVP! MRVP’s own Charlie Conway rides along to help answer your inquires related to trackwork, pink insulation foam board, wiring, scenery, and more. Watch, learn, enjoy, […]

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Operating in push vs. pull

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An eastbound express Metra train, operating in push mode, pauses at Western Springs, Ill., on Sept. 10, 2009. You can see the engineer in the window of the cabcar. Paul Hoffmann Q What’s the difference in touch or feel for an engineer running in push mode versus pull mode? Is there a limit to the […]

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‘X’ locomotive number

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Southern Pacific cab-forward 4-8-8-2 No. 4219 leads an extra train at Dunsmuir, Calif., in August 1948. Guy L. Dunscomb, Martin E. Hansen collection Q On some early Union Pacific and Southern Pacific steam and diesel locomotives there is an “X” in front of the number. Why is this done? – Leon Bassik, Langhorne, Pa. A […]

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Ask MRVP: Episode 35

David Popp standing in the Model Railroader workshop introducing a video.

Having trouble viewing this video?   Please visit our Video FAQ page In this episode, host David Popp returns to a topic first addressed in the May 2018 show. Who knew there are so many ways to bend styrene? David demonstrates some of your suggestions, and then turns to other topics related to T-Trak modules, […]

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Ask MRVP: Episode 35

David Popp standing in the Model Railroader workshop introducing a video.

Having trouble viewing this video?   Please visit our Video FAQ page In this episode, host David Popp returns to a topic first addressed in the May 2018 show. Who knew there are so many ways to bend styrene? David demonstrates some of your suggestions, and then turns to other topics related to T-Trak modules, […]

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Nitrogen blankets

Q I heard the term “nitrogen blanket” in reference to a tank car. Could you explain what this is and what types of tank cars have these nitrogen blankets? – Mike Riley, Manchester, Mo. A The term “nitrogen blanket” refers to a padding (or a layer) of nitrogen gas put into a tank car to: […]

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Ask MRVP: Episode 34

David Popp standing in front of the HO scale Virginian Ry. model railroad.

Having trouble viewing this video?   Please visit our Video FAQ page Host David Popp has shed his skis and winter gear and he’s now ready to spring into action answering your hobby questions! In this episode David addresses topics ranging from turnout control to locomotive repair to structure modeling. Watch, learn, and then pitch […]

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Ask MRVP: Episode 34

David Popp standing in front of the HO scale Virginian Ry. model railroad.

Having trouble viewing this video?   Please visit our Video FAQ page Host David Popp has shed his skis and winter gear and he’s now ready to spring into action answering your hobby questions! In this episode David addresses topics ranging from turnout control to locomotive repair to structure modeling. Watch, learn, and then pitch […]

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Where diesels go to the doctor

NorfolkSouthernJuniataShopAltoonaPennsylvania

Home for the heaviest rebuild, repair, and repaint work on the Norfolk Southern system is the sprawling former Pennsylvania Railroad Juniata Shops in Altoona, Pa. The backshop is the heart of this operation in the Keystone State. Alex Mayes Diesel locomotives are amazing. They are built to withstand the rigors of service, running 24 hours […]

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