Union Pacific 4012: Big Boy
The “Big Boy” is an articulated 4-8-8-4 Steam Engine. 4-8-8-4 denotes that it is a locomotive with a four-wheel leading truck, two sets of eight driving wheels, and a four-wheel trailing truck, in other words, it’s HUGE. Only 25 total were built, including the one shown in this pictures, 4012.
A [...]
Posts tagged locomotive
Union Pacific 4012
Union Pacific 4012: Big Boy
The “Big Boy” is an articulated 4-8-8-4 Steam Engine. 4-8-8-4 denotes that it is a locomotive with a four-wheel leading truck, two sets of eight driving wheels, and a four-wheel trailing truck, in other words, it’s HUGE. Only 25 total were built, including the one shown in this pictures, 4012.
A [...]
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