Facts and
Figures
Builder ALCO (American Locomotive Company)
Model S6
Builders Number 81301
Date Delivered June, 1955
Original Number 1051 (1955 to 1965) (SP class DS9)
Final Number 1218 (System Renumbering in 1965, changed to SP class AS409-1)
Engine Model 251A
Horsepower 900 @ 1000rpm (turbosupercharged)
Weight 232,780 pounds
Length 45' 6"
Height 15' 10"
Width 10' 3"
Fuel Capacity 635 Gallons
Model S6
Builders Number 81301
Date Delivered June, 1955
Original Number 1051 (1955 to 1965) (SP class DS9)
Final Number 1218 (System Renumbering in 1965, changed to SP class AS409-1)
Engine Model 251A
Horsepower 900 @ 1000rpm (turbosupercharged)
Weight 232,780 pounds
Length 45' 6"
Height 15' 10"
Width 10' 3"
Fuel Capacity 635 Gallons
| The locomotive was bought new by the Southern Pacific in 1955 and was part of an order for 19 identical units. Out of a total of 93 locomotives constructed by ALCO for domestic use, the Southern Pacific owned 70 which were purchased in 1955 and 1956 in 5 different groups. They lasted on the SP system until the summer of 1980 and never received heavy modifications. |
| These are
pages from a
1957 Southern Pacific Diesel Unit Diagram Book. It is
interesting to note that the book shows the locomotive equipped with a
speedometer but there is no sign of there ever having been one
installed. |
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