Providing enough steam to power train heat and some air conditioning systems on postwar trains taxed the standard water supply of EMD F7 A units set-up for passenger service, prompting EMD to roll out the new FP7 in 1949. Though outwardly similar to the F7A, FP7s were actually four feet longer to accommodate bigger water tanks with a capacity of 950 US gallons. Standard passenger power into the Amtrak era and beyond (with some also handling freight chores), these WalthersProto replicas are fully assembled and ready for service with: One time run of these roadnumbers, order now - limited quantity available! Matches the prototypes′ extended frame and body Railroad-specific details DCC-ready with 21-pin DCC (Mtu) connector Five-pole, skew-wound, high-torque, high-efficiency can motor Helical gears with 14:1 ratio for smooth, ultra-quiet running Easy multiple-unit operation Correct RP-25 wheelsets Proto MAX(TM) magnetic metal knuckle couplers Road-specific features of this WalthersProto replica include: A Unit details - Leslie S2-M w/all bells forward and A200-156 air horns Firecracker radio antenna Non-operating Pyle 360 beacon Freight pilot Horizontal body louvers and grilles Knob-style sand hatch doors Cab wind deflectors Etched-metal cab sunshades Screen-type spark arrestors Winterization hatch Circular cab vent Dual headlights - upper twin vertical, lower single Working rear back-up lights (single on A, dual on B)