PRR Herald GG1 Specs


Railroads: Pennsylvania, Pen Central, Conrail, Amtrak, New Jersey Department of Transportation, later New Jersey Transit
Builder: GE/PRR, with Baldwin and Westinghouse colaboration
Price: $250,000 each for first production order
Numbers: PRR and sucessors: 4800-4938, Amtrak: 901-939 (later 4901-4939), NJT: 4872-4884
Production Run: 1934-1943 139 units
Locomotives Displaced: P5a (to freight service)
Locomotives Displaced by: E44, E60
Service Lifetime: 48 years

Weights

Weight: 447,000 lb total
Adhesive Weight: 303,000 lb, 50,500 per axle
Maximum Axle Load: 5,500 lb
Boiler: 17.1 tons
Transformer: 15.3 tons

Lengths

Length: 79' 6"
Wheelbase: 69' 0"
Driver Wheelbase: 37' 4"
Rigid Wheelbase: 13' 8" (2)

Rataings

Tractive Effort (maximum): 70,700 lb (65,500, 72,800 or 75,000 lb by other sources)
HP (continuous): 4,620 (385 per motor) at 100 mph HP (maximum): 8,000 at 100 MPH, 9,500 at 49 mph

Mechanicals

Gearing: 24:77 passenger; 24:79 frieght
Maximum Speed: 100 mph in service, 110 mph in testing (90 mph in service for freight gearing)
Drivers: 12, 57 in.
Trailers: 8, 32 in.
Wheel arrangement: 2-C+C-2 (2-Co+Co-2 or 4-6-0+0-6-4)
Traction transmission: quill drive, 2 motors per quill

Electricals

Line in: 11,000 V AC, 25 Hz
Traction line in: ? 400 V AC, 25 Hz ?
Transformer: 4,600 kVA
Transformer Control: electro-pnumatic
Motors: 12 in 6 pair, 6 pole
Control Notches: 22 for passenger service, 17 for freight
Batteries: 32V, 300 amps per hour

Auxiliaries

Steam Boiler: oil fired, 200 psi, 4,500 lbs per hour
Air: recipricating compressor

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