Talk:SR class 3Sub

Trains: in UK / in London Mid‑importance

	Trains Portal
DYK	August 1, 2019

	London Transport Portal

This article is within the scope of WikiProject Trains, an attempt to build a comprehensive and detailed guide to rail transport on Wikipedia. If you would like to participate, you can visit the project page, where you can join the project and/or contribute to the discussion. See also: WikiProject Trains to do list and the Trains Portal.TrainsWikipedia:WikiProject TrainsTemplate:WikiProject Trainsrail transport articles

Mid

This article has been rated as Mid-importance on the project's importance scale.

Associated projects or task forces:
/
	This article is supported by WikiProject UK Railways (assessed as Mid-importance).
	This article is supported by WikiProject London Transport (assessed as Mid-importance).

'3-SUB' plus 2-car trailer formations[edit]

Some published sources claim that sometimes one '3-SUB' unit would haul a 2-car trailer set, without a second '3-SUB' behind the trailer set. When arriving at the end of the route, the 3-car unit was said to run around the 2-car set as a steam loco would run around loco-hauled stock.

Did this ever actually happen? It would seem unlikely that a run-round loop would be long enough for a 3-car set, and a run-round manoeuvre would interfere with the intensive traffic of an electrified line, especially if a long distance from one crossover to another would have to be run. Also, I have never seen any photographic or documentary evidence (e.g. working timetables or special traffic notices) for this.

Any ecidence for or aginst would improve this already good article. Barney Bruchstein (talk) 20:06, 25 May 2021 (UTC)[reply]

@Barney Bruchstein: You say "Some published sources claim ..." - which sources would those be? --Redrose64 🌹 (talk) 21:22, 25 May 2021 (UTC)[reply]