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This seems very convincing to me. Compare to the excerpt from the local newspaper account (Sheridan Enterprise, 1-9-1911) I have attached. Very close agreement between your conclusion and what the senior CB&Q men concluded (who were on the special running about 45 minutes behind the ill-fated train). They were on the scene probably less than an hour after the boiler explosion. What is the source of the elevation profile? thanks! On Tue, Nov 26, 2019 at 11:25 AM Winton <runextra@gmail.com> wrote: West of MP 15 is ~10 miles of 1.25% down grade eastbound. The attached profile shows the first level and upgrade spot, about 1.5 miles east of Ranchester. It is likely here where low boiler water would have rushed from the front of the boiler to the rear. flooding over the dry super hot firebox crown sheet and flash boiling, exceeding the capacity of the safety valves. This excessively high steam pressure and and the weakened condition of the crown sheet resulting in the explosion. _._,_._,_
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