the funny thing after gone trough that list and he that made that webpage own page on Big Boy, I find the Big Boy still the biggest... funny that. but I also think his information is inaccurate, since he say that Big Boy produced 6000hp and not 6290hp as she did.
His list is on locomotive that haven't that boggy solution like Big Boy have, that means Big Boy can do 20 degrees turn, the locomotives on the list can't. And some of the locomotives on the list is an electric generator powered by the steam engine..
It is interesting a list like that, in some area Big Boy is the leader, and in some area she is in the top 5 or top 10. While Big Boy is an pure steam locomotive, many other ships on the list are either a Turbine locomotives, Electric-steam or even looks build to use Diesel!!
But as the biggest locomotive in the world, just as pure steam locomotive... Big Boy, but if every thing is allowed, give me Jawn Henry class any day.. that beast!
So let us go trough the list, from top to bottom as I see it at least:
(note all information is coming from his web page, and I will add in extra information behind that)(Note Big Boy is an Articulated locomotives)
Non-Articulated Steam Locomotives
Most Pulling Force (Non-Articulated):
Tractive Effort
Big Boy: 135,375
Madam Queen class: 113,087
Q-2 class: 100,800 (115,800 w/booster)
Most Powerful (Non-Articulated)
Q-2 class: 7,987@57.4 (IHP) (but she was an non-articulated locomotives)
Big Boy: 6290 hp (she was an Articulated locomotives)
Longest (Non-Articulated)
S-1 class: 140 (with tender) 78 (without the tender)
Big Boy: 132 (with tender) 85 (without tender)
Heaviest (Non-Articulated)
Big Boy: 1,250,000
Q-2 class: 1,053,100
It's first her Big Boy starting to get some competition:
Most Pulling Force (Articulated)
Tractive Effort
Jawn Henry class: 180,000 (steam electric, so that one doesn't count)
X-A class: 166,300 (compound) 199,560 (simple) (But this one could'n hold the steam pressure up, the boiler was to small.
AE class: 147,200 (compound) 176,600 (simple) (it was first when they was rebuild to an twin engine with bigger boiler they was success in the slow 6mph coal train service)
Big Boy: 135,375
Most Powerful (Articulated)
H-8 class: 7,498@46MPH (It is said that the dyno she was tested on, might not be correct put up. This is said by those people because she have an smaller engine than Big Boy or Big Boy smaller sister)
Big Boy: 6,298 hp (Estimated, never tested on Dyno)
M-1 class: 6,000 (turbine) 3,000 (DBHP)
Longest (Articulated)
Jawn Henry class: 161 (Diesel-steam)
M-1 class: 154 (was named by those that operated it as the best build)
Big Boy: tiny 132
Heaviest (Articulated) (based on engine weight)
Big Boy: 1,250,000 (with tender)
M-1 class: 1,233,970 (with tender) (she was build as an dual purpose, passenger and heavy haulage)
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