The AA20 was a "4-14-4" (Russian notation: 2-7-2) locomotive (using the Whyte notation classification of steam locomotives by wheel arrangement). It featured four leading wheels , fourteen coupled driving wheels (seven axles) in a rigid frame, and four trailing wheels .

"Like John Armstrong's 4-6-6-6," wrote Karlson," it was three engines: first of class, last of class, and only of class. I have found a photograph of it in the Scherbinka yard that supposedly dates to the early 1950s, shortly before it went for scrap."

Feb 14, 2007 · A 4-14-4, in the Whyte notation for the classification of steam locomotives by wheel arrangement, is a locomotive with four leading wheels in a leading truck, fourteen driving wheels (seven axles) in a rigid frame, and four trailing wheels in a trailing truck.

The US did pull off non-articulated locomotives with large amounts of drive wheels. The Union Pacific 4-12-2’s were fairly successful.

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Video shows what 4-14-4 means. Under the Whyte notation system, a steam locomotive with four leading wheels in a leading truck, fourteen driving wheels (seve...

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Dec 10, 2023 · 14 Divided by 4: Here is the quotient and remainder of 14/4, along with the decimal result and percentage, including a calculator.