Class Q2 4-4-6-4 Duplex - Sstandard DC - Stealth Brass Hybrid -- Pennsylvania Railroad #6190 (Fantasy Scheme, Brunswick Green, graphite, Tusc

This Broadway Limited HO Scale Class Q2 4-4-6-4 Duplex steam locomotive is based on a unique Pennsylvania Railroad engine. In 1942, the PRR built an experimental duplex drive freight locomotive, the Q1, with a 4-6-4-4 wheel arrangement. In 1944, after identifying a number of flaws with the Q1, the PRR built a second prototype, changing the wheel arrangement to a 4-4-6-4 and creating class Q2. This was followed by 25 production Q2 steam locomotives in 1945. These rigid-frame four cylinder locomotives may have been the epitome of superpower steam locomotive design. At 115,800 lbs of tractive effort and nearly 8,000 horsepower, the Q2s were the most powerful ten-coupled steam locomotives ever produced. These monsters were the greyhounds of the PRR, single-handedly hauling tonnage at high speeds over the PRR's lines. Mostly seen on the Pennsy west of Pittsburg, these locomotives did venture east to territory such as Horseshoe Curve and their birthplace, Altoona. The Q2