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Reply to "Lobaugh Challenger 1940-2 in motion !"

Just about to head to the airport.  That is where the Fetters Challengers are at the moment.  Will get you some dimensions.  I think the taper is fairly simple, as in one long taper to the firebox.  The Lobaugh boilers were "spun", which means that they could do some pretty complex forming as long as it was symmetrical - the modern Challenger boiler kind of "swells" behind the smokebox, then tapers gradually.  Let me get a photo that shows how easy this is to duplicate:

Challenger Boiler 006

I think you can see it there - the boiler is a tube, but slit down the bottom.  The width of the taper is indicative of how much taper you will need - but this is a Jabelmann boiler, and you want Fetters.  I will write myself a note.

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  • Challenger Boiler 006

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