Steam Engines: Vestibule Cab Weight?? is a free online Railroad Discussion Forum and Railroad Photo Gallery for railroaders, railfans, model railroaders and anyone else who is interested in railroads. We cover a wide variety of topics, including freight trains, passenger and commuter railroads, rail news and information, tourist railroads, railway museums and railroad history.

Sean R Das

I am designing an "imagineered" locomotive (for eventually modelling in Blender)and have a question--if one were to add a fully-enclosed "vestibule" or "all-weather" cab to a locomotive, without changing anything else, how does this affect the engine's (and tender's) weight? I have tried looking at various examples (NP's A3 vs. A4, SP's GS3 vs. GS4), but since more than just the cab had changed between the successive classes, I'd like to know the approximate difference if just the cab--and nothing else--changed.

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