Pennsylvania Railroad Q1

The Pennsylvania Railroad class Q1, number 6130, was a single experimental steam locomotive designed for dual passenger and freight service. It entered service in 1942 with a 4-6-4-4 duplex wheel arrangement, the front six driving wheels worked by conventional cylinders and the rear four by cylinders mounted behind them beside the firebox, and 77 inch drivers. Its streamlined shell, credited to Raymond Loewy, was largely removed around 1945 because it gave little benefit at freight speeds. It ran only about 165,000 miles before being stored in 1949, and the railroad and later historians judged it a failure, though it inspired the freight only Q2. It was dismantled around 1949.