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(1,683 posts)Being on the other side of the boiler from the head brakeman was a serious safety fault. On a normal loco, the engineer and the head brakeman would call out light signals on their side of the track to each other and confirm each other for safety.
Actually the huge firebox was to consume "high grade coal". The railroads using the "camel backs" were the anthracite coal roads. Anthracite (hard coal) was used in home heating as it burns much cleaner and gives off less smoke and soot. The railroads serving the anthracite coal regions used that coal because they wanted to buy from their customers, the anthracite mines. Unfortunately, anthracite coal is not very good "steaming" coal and the larger firebox was required. Railroads, steamships, and power plants preferred the dirtier and more efficient (for steaming purposes) bituminous coal. The very best steaming coal came from the Pocahontas seam in West Virginia.