MTH O Scale Premier GG-1 Electric Engine With Proto-Sound 2.0. This product is compatible with all O Gauge 3-Rail track systems including those systems offered by Atlas and Lionel and Gargraves and Ross Custom Switches. The GG-1 could be called the Gold Standard for electric locomotives, with its unparalleled longevity and road performance. Its incredible performance record is probably due to the fact that it had to compete for its spot on the Pennsy roster. When the PRR was in the market for a new high-speed passenger locomotive, it was given two prototypes to consider. The GG-1, based on the New Haven EP3, defeated the R1 in the contest to determine which engine Pennsy would order, and so began the engine’s unparalleled dominance. The 139-unit GG-1 fleet was built between 1934-44, primarily for passenger work, though during WWII and in the 1950s when passenger train miles were reduced the engines did dual duty, pulling freight trains when needed. The GG-1 survived longer than any other locomotive design, lasting well into the 1980s, and survived both the railroad that created it and that road’s successor, Penn Central. M.T.H. is proud to present a beautiful scale replica of this legendary engine in several paint schemes representing the Pennsylvania Railroad and the Conrail Bicentennial and American Railroad livery. We’re sure it will pull your own passenger or freight consist as reliably as the original did. Features: Directionally Controlled Headlights – Intricately Detailed Die-Cast Body – Metal Wheels, Axles and Gears – Operating Pantographs – Die-Cast Truck Sides & Pilots – Authentic Paint Scheme – (2) Remotely Controlled Proto-Couplersr – Metal Chassis – (2) Precision Flywheel Equipped Motors – Locomotive Speed Control – Lighted Cab Interior – Illuminated Number Boards – Lighted Marker Lights – (2) Cab Figures – Proto-Sound 2.0 With The Digital Command System Featuring:- Passenger Station Proto-Effects – Unit Measures:19 3/4″ x 2 5/8″ x 4″ – Operates On O-72 Curves