the #12 engine, also known as the "kenny van meter", features a propane-fired boiler and has a total weight of 25 tons (engine and tender). it is a 2/3 scale replica of the general. it is painted blue. the locomotive's original name was tecumseh after the shawnee leader. originally, it featured a balloon-style stack but it was replaced in the late 1980s or early 1990s to make it stand apart from the green engine. the blue engine also originally had two blue domes but were painted red to match the wheels in the late 1980s or early 1990s, when the balloon stack was removed.