Jupiter (locomotive)

Jupiter
Jupiter replica at Golden Spike N.H.P.
Type and origin
Power typeSteam
BuilderSchenectady Locomotive Works (original)
O'Connor Engineering Laboratories (replica)
Serial number505 (original)
2050302 (replica)
Build dateSeptember 1868 (original)
May 1979 (replica)
Specifications
Configuration:
  Whyte4-4-0
Gauge4 ft 8+12 in (1,435 mm) standard gauge
Driver dia.5 ft 4 in (1,626 mm)
Frame typeBar
Adhesive weight18 short tons (16 long tons; 16 t)
Loco weight27 short tons (24 long tons; 24 t)
Fuel typeOriginal: Wood, converted to coal in 1893
Replica: Oil, converted to wood in 1991
Water cap.2,000 US gal (7,600 L; 1,700 imp gal)
Firebox:
  Grate area14.5 sq ft (1.35 m2)
Boiler pressureOriginal: 120 psi (830 kPa)
Replica: 160 psi (1,100 kPa)
Cylinder size16 in (406 mm) diameter ×
24 in (610 mm) stroke
Performance figures
Tractive effort9,523 lb (4,320 kg)
Career
OperatorsCentral Pacific RailroadSouthern Pacific Railroad, Gila Valley, Globe and Northern Railway
Numbers60 (CP), renum 1195 in 1891, GVG&N 1 in 1893
Official nameJupiter
First runMarch 20, 1869
DispositionOriginal scrapped in 1909; replica built in 1979 and is operational at the Golden Spike N.H.P.

The Jupiter (officially known as Central Pacific Railroad #60) was a 4-4-0 steam locomotive owned by the Central Pacific Railroad. It made history when it joined the Union Pacific No. 119 at Promontory Summit, Utah, during the golden spike ceremony commemorating the completion of the first transcontinental railroad in 1869.

The Jupiter was built in September 1868 by the Schenectady Locomotive Works of New York, along with three other engines of identical specifications, numbered 61, 62, and 63 named the Storm, Whirlwind, and Leviathan, respectively. These were then dismantled and sailed to San Francisco, California, loaded onto a river barge, and sent to the Central Pacific headquarters in Sacramento. After reassembly the Jupiter was commissioned into service on March 20, 1869, with the other three entering service within the following month.