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Airborne Challenger

By | January 3, 2022

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Union Pacific Railroad 4-6-6-4 Challenger wheels
Union Pacific Railroad 4-6-6-4 Challenger wheels

Union Pacific’s 4-6-6-4 Challengers were too long for the turntable at North Platte, Nebr., but they could still use it. Wedges were clamped to the table’s rails at one end, then a 4-6-6-4 was backed on, leaving the rear four wheels of the tender hanging in mid-air.
Art Stensvad photo

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