BLI 8053 HO Scale Pennsylvania Q2 Duplex 4-4-6-4 Steam Loco PRR 6175 Stealth Hybrid Chassis and an emulsion-style cap with

and an emulsion-style cap with screw for easier rebuilds

Designed for all-weather fun

Optional EDO-style floats (available separately) to fly from water

The thrill is even greater when you've built the marble track yourself—now you're not just passively watching a video

Fully assembled and ready to operate

BLI 8053 HO Scale Pennsylvania Q2 Duplex 4-4-6-4 Steam Loco PRR 6175 Stealth Hybrid Chassis and an emulsion-style cap withBLI 8053 HO Scale Pennsylvania Q2 Duplex 4 4 6 4 Steam Loco PRR 6175 Stealth Hybrid 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