Pennsylvania Railroad class T1
http://dbpedia.org/resource/Pennsylvania_Railroad_class_T1 an entity of type: Thing
Die Klasse T1 der Pennsylvania Railroad waren stromlinienförmig verkleidete Dampflokomotiven für schwere Schnellzüge. Sie waren als Duplex-Lokomotiven mit der Achsfolge 2’BB2’ ausgeführt, mit vier angetriebenen Achsen und vier Zylindern. Die in den Jahren 1942 bis 1946 gefertigten Lokomotiven gehörten zu den größten, leistungsstärksten und schnellsten jemals gebauten Dampflokomotiven weltweit.
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T1形は、ペンシルバニア鉄道が製造した旅客用のテンダ式蒸気機関車。レイモンド・ローウィの意匠による流線型の車体と先進的機構で有名になったが、慢性的な空転という致命的欠陥と、蒸気機関車からディーゼル機関車への動力近代化の波が相まって、短命に終わった。
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The Pennsylvania Railroad (PRR) class T1 duplex-drive 4-4-4-4 steam locomotives, introduced in 1942 with two prototypes and later in 1945-1946 with 50 production examples, were the last steam locomotives built for the PRR and arguably its most controversial. They were ambitious, technologically sophisticated, powerful, fast and distinctively streamlined by Raymond Loewy. However, they were also prone to wheelslip both when starting and at speed, in addition to being complicated to maintain and expensive to run. The PRR decided in 1948 to place diesel locomotives on all express passenger trains, leaving unanswered questions as to whether the T1's flaws were solvable, especially taking into account that the two prototypes did not have the problems inherent to the production units.
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PRR-Klasse T1
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ペンシルバニア鉄道T1形蒸気機関車
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Pennsylvania Railroad class T1
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Pennsylvania Railroad T1
rdf:langString
Pennsylvania Railroad T1
xsd:integer
1211847
xsd:integer
1118376744
xsd:integer
180
rdf:langString
Poppet valves
xsd:integer
1952
xsd:integer
1942
1945
2014
rdf:langString
Steam
rdf:langString
Altoona 4560–4584
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BLW 72764–72788
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Loaded:
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Empty: ;
xsd:integer
52
xsd:integer
2
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Franklin poppet
xsd:integer
4
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T1 prototype 6110 at the Baldwin plant ready for delivery to the PRR
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Raymond Loewy
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Ralph P. Johnson
xsd:decimal
611061115500
xsd:integer
6111
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Over 110 mph
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Die Klasse T1 der Pennsylvania Railroad waren stromlinienförmig verkleidete Dampflokomotiven für schwere Schnellzüge. Sie waren als Duplex-Lokomotiven mit der Achsfolge 2’BB2’ ausgeführt, mit vier angetriebenen Achsen und vier Zylindern. Die in den Jahren 1942 bis 1946 gefertigten Lokomotiven gehörten zu den größten, leistungsstärksten und schnellsten jemals gebauten Dampflokomotiven weltweit.
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The Pennsylvania Railroad (PRR) class T1 duplex-drive 4-4-4-4 steam locomotives, introduced in 1942 with two prototypes and later in 1945-1946 with 50 production examples, were the last steam locomotives built for the PRR and arguably its most controversial. They were ambitious, technologically sophisticated, powerful, fast and distinctively streamlined by Raymond Loewy. However, they were also prone to wheelslip both when starting and at speed, in addition to being complicated to maintain and expensive to run. The PRR decided in 1948 to place diesel locomotives on all express passenger trains, leaving unanswered questions as to whether the T1's flaws were solvable, especially taking into account that the two prototypes did not have the problems inherent to the production units. An article appearing in a 2008 issue of the Pennsylvania Railroad Technical and Historical Society Magazine showed that inadequate training for engineers transitioning to the T1 may have led to excessive throttle applications, resulting in driver slippage. Another root cause of wheelslip was faulty "spring equalization": The stiffnesses of the springs supporting the locomotive over the axles were not adjusted to properly equalize the wheel-to-track forces. The drivers were equalized together but not equalized with the engine truck. In the production fleet the PRR equalized the engine truck with the front engine and the trailing truck with the rear engine, which helped to solve the wheelslip problem.
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T1形は、ペンシルバニア鉄道が製造した旅客用のテンダ式蒸気機関車。レイモンド・ローウィの意匠による流線型の車体と先進的機構で有名になったが、慢性的な空転という致命的欠陥と、蒸気機関車からディーゼル機関車への動力近代化の波が相まって、短命に終わった。
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Four
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All 52 original scrapped, 1 new build under construction
xsd:double
4.33
xsd:integer
52
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T1
xsd:integer
1953
<millimetre>
4572.0
<millimetre>
37185.6
<millimetre>
3352.8
xsd:nonNegativeInteger
18762
xsd:gYear
6111
xsd:gYear
1942
xsd:double
4.572
xsd:double
37.1856
xsd:nonNegativeInteger
52
xsd:double
3.3528
