New York Central P Motor

NYC P Motor
NYC-P locomotives at General Electric, Erie, for electrical modification, 1954
Type and origin
Power typeElectric
BuilderALCO-GE
Build date1929-1930
Total producedP-1a: 22
P-1a Rebuilt as P-2a: 1
P-1a Rebuilt as P-2b: 20
Specifications
Configuration:
 • AAR2-C+C-2
 • UIC(2′Co)(Co2′)
Gauge4 ft 8+12 in (1,435 mm)
Leading dia.36 in (914 mm)
Driver dia.48 in (1,219 mm)
Length80 ft 0 in (24.38 m)
Adhesive weightP-1a: 311,000 lb (141.1 tonnes)
P-2a: 296,300 lb (134.4 tonnes)
P-2b: 288,500 lb (130.9 tonnes)
Loco weightP-1a: 418,900 lb (190.0 tonnes)
P-2a: 406,000 lb (184.2 tonnes)
P-2b: 388,000 lb (176.0 tonnes)
Electric system/sP-1a: 3000 V DC
P-2: 660 V DC
Current pickup(s)P-1a: Overhead DC with dual pantographs
P-2: Third rail
Traction motorsP-1a: 6 × GE 278C 505 hp (377 kW)
P-2: 6 x GE 755A
TransmissionResistance controlled DC current supplied to DC nose suspended traction motors.
Performance figures
Maximum speed70 mph (110 km/h)
Power output3,030 hp (2,260 kW)
Tractive effort77,925 lbf (346.63 kN)

P-Motor was the class designation given by the New York Central a fleet of 22 ALCO-GE electric passenger locomotives. The P Motors were not only more powerful than previous New York Central electrics, but also a more advanced design using the highly successful 2-C+C-2 wheel arrangement found on the later PRR GG1 and New Haven EP-3 classes as well as nose suspended traction motors. Although originally built and owned by a consortium of railroads involved in the large scale Cleveland Union Terminal project, the New York Central was the majority owner and later acquired them outright in the 1950s when the Terminal's electrification scheme was scrapped in favor of diesel locomotives.[1] Rebuilt and re-classified as P-2, the 21 remaining engines were sent to the New York electrified zone to supplement the aging fleet of T-Motors that had been purchased starting in 1913.[1] There they played out the remainder of their careers pulling the Central's premier passenger trains.

  1. ^ a b Staufer & May (1981), p. 295–331.