Английская Википедия:British Rail Class 97/6

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Шаблон:Short description Шаблон:Use dmy dates Шаблон:Use British English Шаблон:More footnotes needed Шаблон:Infobox locomotive The British Rail Class 97/6 0-6-0 diesel shunting locomotives were purpose-built for departmental duties by Ruston & Hornsby at Lincoln in 1953 (97650) or 1959 (97651-654). There are minor technical differences between 97650 and the 1959 batch.

This class of five locomotives is outwardly similar to the Class 04 diesels built around the same time, but internally they are quite different. The Class 97/6 is diesel-electric, while the Class 04 is diesel-mechanical.

The Class 97/6 is related to the older British Rail Class D1/3, which was a 0-4-0 diesel-mechanical version of the Ruston & Hornsby 165DE.

Overview

Файл:5182373440 PWM.jpg
PWM651 at Radyr, c. 1977.
Файл:Worcester Shbur Hill train (cropped).jpg
97650 at Worcester Shrub Hill in 1979 - this loco was different from the others.

The fleet was originally numbered PWM650-654 in the Western Region Permanent Way Machines series, hence were commonly referred to as the “PWM shunters” or simply “PWMs”.[1] Between 1979 and 1981 they were renumbered as Class 97 locomotives. Originally painted in BR Green livery, this was later superseded by BR Blue and finally Civil Engineering Yellow. They were employed at various locations, including Reading West (97650/653/654), Gloucester / Cardiff Canton / Radyr (97651) and Plymouth Laira (97652).

Specification

  • Diesel engine: Ruston 6VPH of 165 bhp (123 kW) at 1,250 rpm
  • Transmission: Electric,
  • Driving wheel diameter,
    • 97650: 3 ft 2½in (978 mm)
    • 97651-654: 3 ft 4in (1,016 mm)
  • Weight,
    • 97650: 28 tons (29 tonnes)
    • 97651-654: 30 tons (31 tonnes)
  • Maximum tractive effort: 17,000 lb (75 kN)
  • Maximum speed: 20 mph (32 km/h)
  • Brake type: Straight air on locomotive, automatic vacuum for train

A notable feature of this class is that the electric traction motor can be disengaged from the wheels. This allows the locomotive to be hauled by another locomotive at speeds above 20 mph.

Withdrawal

With the privatisation of British Rail in the mid-1990s, these locomotives were largely made redundant. Three locomotives had already been withdrawn from traffic, and only nos. 97651 and 97654 survived long enough to pass into English Welsh & Scottish (EWS) ownership. Number 97654 was sold to an infrastructure company based in Edinburgh, and remained in use until 2005, when it was preserved. Number 97651 was one of the first locomotives sold by EWS into preservation.

Preservation

Файл:Rail-97651-amoswolfe.jpg
97651 as preserved.

Three of the five locomotives have been preserved on heritage railways.

Incomplete remains of 97653 were stored at the former Ministry of Defence depot at Long Marston, Warwickshire until taken to Hurst's, Andover for scrap in August 2011.[2]

Fleet details

Key: Preserved Scrapped


Number(s) Built Final livery Withdrawn Disposal Notes
97650 PWM650 1953 BR Blue 1987 Preserved
97651 PWM651 1959 CE Yellow 1996 Preserved - Swindon and Cricklade Railway
97652 PWM652 1959 CE Yellow 1987 Scrapped (1990)
97653 PWM653 1959 CE Yellow 1993 Scrapped (2011)
97654 PWM654 1959 CE Yellow 2005 Preserved

References

Шаблон:Reflist

Sources

External links


Шаблон:British Rail Locomotives

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  1. ↑ Шаблон:Cite book
  2. ↑ Шаблон:Cite web
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