>>1740275> A group of Soviet locomotive engineers had visited the United States, and presumably they had seen the 4-12-2 locomotives being used by the Union Pacific. The 4-14-4 could be viewed as an expansion of that type. Unlike the successful Union Pacific locomotives, however, the AA20-1 was a complete failure.>The seven driving axles were laid out 1.7 m (5.6 ft) apart, giving a very long rigid wheelbase of 10 m (33 ft). This required adaptations to negotiate curves. The center three driving axles were blind, and the first and seventh driving axles were fitted with lateral motion devices. These measures were not enough to make the AA20-1 work properly, however. As a result of its massive size and long wheelbase, it was too heavy and prone to frequent derailments, spreading the track and wrecking points of the switches it passed over. It was too big to fit on the turntables, too powerful for the couplers in use at the time and unable to run at full power for very long due to the poor-grade coal being insufficient to provide full steam capacity for the massive boiler.Yeah, they sure dabbed on us alright
Go back to /int/ until you're ready and willing to talk locomotives and not race wars
