The Pennsylvania Railroad S1, nicknamed The Big Engine, was a single experimental passenger steam locomotive with the unique 6-4-4-6 duplex wheel arrangement, built to show the advantages of duplex drive and numbered 6100. Completed at Altoona in 1939 under a streamlined Art Deco shell designed by Raymond Loewy, it was the longest reciprocating steam locomotive ever built at over 140 feet with tender, with 84-inch drivers and about 7,200 drawbar horsepower. Wheel slip and a wheelbase too long for many curves limited its use, the railroad turned to the smaller T1, and the S1 was scrapped in 1949.
Facts
Engine Class Connections
Exemplifies
Source Pennsylvania Railroad class S1 (Wikipedia)
Of Make
Source Pennsylvania Railroad class S1 (Wikipedia)
In the Other Atlases
Manufactured By
Also in Business Atlas: the manufacturer of this subject.
Source Pennsylvania Railroad class S1 (Wikipedia)ConstructionQuote, Construction
completed on January 31, 1939, at Altoona
Sources
1. Pennsylvania Railroad class S1 (Wikipedia)
Lead
completed on January 31, 1939
Lead, units built
a single experimental duplex locomotive
History, fate
6100 was scrapped in 1949
Lead, type
longest reciprocating steam locomotive ever
Lead, energy source
longest reciprocating steam locomotive ever
Lead, engine class
longest reciprocating steam locomotive ever
Construction, drawbar power
7,200 hp (5,400 kW)
Construction
completed on January 31, 1939, at Altoona
Of Make: Pennsylvania Railroad, Lead, class
The PRR S1 class steam locomotive
Exemplifies: Rail Transport, Lead, mode
The PRR S1 class steam locomotive
In Group: American Main-Line Steam Locomotives, Lead, grouping
The PRR S1 class steam locomotive
View the SourceReader Challenges (0)
No disputes yet. Spotted an error or a better source? Open the first one.
Sign in to dispute this or suggest a correction.