Southern F-3 Powered and Dummy (A-A) Set. Locomotive Features: A-A length 27"; height 3 7/8", 4-wheel trucks with traction tires, dual can motors on powered unit, flywheel coasting action, electronic 6-amp reverse board, True Blast IITM digital horn and bell, die-cast frame, trucks, truck sides, and pilots, die-cast operating front coupler, front headlight, add-on handrails, steps, and ventilation screens.