Italian term
Prestazione delle locomotive
"Il termine prestazione, nel linguaggio ferroviario, definisce la massa dei rotabili trainabile da una locomotiva, in funzione della pendenza della linea (detta grado di prestazione), che le consenta di mantenere la categoria di velocità prevista dall'orario di un treno."
4 | performance of [steam] locomotives | Inter-Tra |
3 | locomotive (traction) power rating | Adrian MM. |
Nov 23, 2023 14:42: Naiara Solano changed "Vetting" from "Needs Vetting" to "Vet OK"
Nov 23, 2023 14:42: Naiara Solano changed "Kudoz queue" from "In queue" to "Public"
Proposed translations
performance of [steam] locomotives
851
Italian Ferrovie dello Stato (FS), steam locomotive, 851.057. The locomotives of the group **851** have been a group of **steam locomotives** used as **switchers** until the 1970’s.
These locomotives were built by Adriatic network (RA) which built the service line. In 1905, along with locomotives groups then FS 290, 600 and 870 also former RA, were included among those that the FS reputed worthy of further orders in anticipation of the completion of the project of the new groups fit to cope with the traffic growth following the nationalization.
The advent of the locomotives of the 940 group relegated the 851-series to the role of **shunting locomotives**. With a geographical distribution complementary to that of the group 835 of these "interesting cars" they saw service until the end of the era of steam traction in Italy in the seventies. Static display near Rhaetian Railway station, Tirona, Italy, September 9, 2015.
https://www.trainorders.com/discussion/read.php?17,3855225
981
Images
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Note added at 19 ore (2023-11-24 10:29:44 GMT)
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https://commons.wikimedia.org/wiki/Category:FS_981
locomotive (traction) power rating
Otherwise, as an ex-train, Routemaster bus and Greenline Coach spotter, methinks this is about locomotive traction power and perfomance measurement.
The tonnage rating of a modern locomotive, the maximum train weight it is capable of hauling over a given line without undue risk of stalling, is primarily limited by track adhesion considerations rather than by limitations in the locomotive itself.
Locomotives have 6–8 HVAC or HVDC traction motors rated at 500 V DC minimum or 1000 V AC minimum.
Discussion
Both of the sentences they've given are from Wikipedia:
http://it.wikipedia.org/wiki/Locomotiva_FS_851
http://it.wikipedia.org/wiki/Prestazione_delle_locomotive