Forum Discussion
time2roll
May 18, 2017Nomad
The first diesels were low on power too. Just used for switching and had a manual transmission/clutch.
Boiling 85,000 lbs/hr water seems to convert to 4,630 hp. That would be thermal hp conversion not necessarily output power. Old steam was rated more in pulling power or tractive effort to start a load. HP of course needs a speed component and these monsters were never really put on a dynomometer. Peak hp would seem to be made at about 45 mph.
Large steam (4-6-6-2?) had huge air compressors to operate the brakes on the cars. Plenty of videos of old trains where smoke is coming from the brakes of every car as they descend.
Boiling 85,000 lbs/hr water seems to convert to 4,630 hp. That would be thermal hp conversion not necessarily output power. Old steam was rated more in pulling power or tractive effort to start a load. HP of course needs a speed component and these monsters were never really put on a dynomometer. Peak hp would seem to be made at about 45 mph.
Large steam (4-6-6-2?) had huge air compressors to operate the brakes on the cars. Plenty of videos of old trains where smoke is coming from the brakes of every car as they descend.
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