Posted by jeffcat on July 02, 2018 at 18:29:16 from (76.116.234.200):
In Reply to: Re: The End Of An Era posted by gtractorfan on July 02, 2018 at 17:34:36:
Pressurized air would maybe go 1/2 of a mile. Many power plants, chemical plants ,explosive cautionary places had what were called thermos bottle or pressure cooker engines. All they were was a giant air tank but were filled to pretty high pressure with live steam. They were used only in the yard to shuttle cars around but had to go back and recharge every half hour or so. The "Super Power" steam engines were the last and at the end of the steam era. Very efficient but still required a lot of men to service them. A Diesel was by far the most efficient design. If even China dumped the last fires on their super steam in a land where man power is still dirt cheap. That tells you something.
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