| PC MA-1E/MA-1F / RDG REG-13 / Silverliner (IV) | |
|---|---|
 Silverliner IV 308 at Fern Rock Transportation Center | |
| In service | 1974–present |
| Manufacturer | General Electric, Avco |
| Built at | Erie, Pennsylvania |
| Family name | Silverliner |
| Number built | 232 |
| Formation | Single unit/ Married pair |
| Fleet numbers | PC cars: Single Units: 274-303, Married Pairs: 304-399 Reading cars: Single Units: 9018-9031, Married Pairs: 101-188 Current: Single Units: 270-304, 400-416 Married Pairs: 101-188, 305-399, 417-460 |
| Capacity | 155 |
| Operators | Reading Railroad Penn Central Railroad Conrail SEPTA |
| Specifications | |
| Car body construction | Stainless steel |
| Car length | 85 ft (25.91 m) |
| Width | 9 ft 11+1⁄2 in (3.035 m) |
| Height | 14 ft 5 in (4.39 m) |
| Doors | 2 end doors w/ traps |
| Maximum speed | 100 mph (160 km/h) |
| Weight | 120,600 lb (54,700 kg) |
| Traction system | Transformed line current fed through a combination of silicon and mercury arc Ignitron rectifiers in conjunction with a phase angle motor controller. All commuter cars later converted entirely to silicon rectifier. |
| Power output | 550 hp (410 kW) |
| Electric system(s) | 11-13.5 kV 25 Hz AC |
| Current collector(s) | Pantograph |
| UIC classification | Bo’Bo’ |
| AAR wheel arrangement | B-B |
| Braking system(s) | Pneumatic, Dynamic |
| Coupling system | WABCO Model N-2 |
| Track gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge |
The Silverliner IV is the fourth-generation electric multiple unit railcar in the Silverliner family. It was designed and built by General Electric and was delivered between 1973 and 1976. It operates on the SEPTA Regional Rail network throughout Greater Philadelphia.
The 232-car Silverliner IV order was the largest order of the Silverliner series to date. It allowed for the retirement of most of the Reading electric multiple units and PRR MP54 cars, which dated from at least the 1930s. Three times as numerous as the previous Silverliner trains put together, the Silverliner IV became SEPTA's most common passenger railcar from 1976 onward. Like the Silverliner II and III cars, the IV cars were owned by SEPTA and provided to the private railroads for use in their state-supported commuter rail operations until SEPTA assumed direct operation in 1983.