SEmG

Class 171

In order to allow their Turbostars to be able to couple with their Electrostars in an emergency South Central, rebranded from April 2004 as the Southern Railway, are converting their Class 170 units to Dellner couplers, at which time they are re-designated as Class 171/7 for the 2 car units and 171/8 for the four car ones. This re-designation may also be the solution to a potential numbering conundrum. 170727 was originally intended for the first two car unit for the Southern Railway's second batch but it has already been used initially for 170392. On TOPS numbers can only be re-assigned after five years. If 170727 has been fully registered on the system it will not be available for Southern thus leaving a gap in their original 170 sequence. It is not known if it was fully registered, but with all Southern Turbostar deliveries as 171s then the problem went away.
 
As mentioned in the text above, for TOPS reasons the class 170 sub-classes progressed not from 170/7 to 170/8 but to 171/8. Here we see 171802, which was first shown to the public at the York Railfest, photographed on Sunday, 30th May 2004.

photograph by Adam Warr

171802
 
171802 A three-quarter rear view of one of the driving cars of four car unit 171802 at York taken on Sunday, 30th May 2004.

photograph by Adam Warr

 
Ten 170/7 two car sets were built during 2003 and 2004, subsequently converted and carrying the numbers 171721/30, and six 171/8 during 2006, numbered 171801/6. Unit 171730 is the above-mentioned 170392 which was aquired from South West Trains, which then had the subsequent change of coupling to the Dellner type.
 
And a three-quarter front view.

photograph by Adam Warr

171802
 
171802 This is what makes the DMU a 171 instead of a 170 - the Dellner coupler. Existing 170/7s will have their couplers changed to Dellners, becoming 171s in the process.

photograph by Colin Duff

 
Whilst most concentrate on photographing the driving cars, it is the MS cars which are the significant difference from the two car units!

photograph by Colin Duff

171802
 
171802 Interior The interior of one of the Motor Seconds of unit 171802.

photograph by Adam Warr

 
As mentioned in the text, South Central re-invented itself as the Southern Railway from April 2004. This is the new branding, as applied to unit 171802. The dark green and the style and colour of the font are vaguely familiar!

photograph by Adam Warr

Southern Branding

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Class 170

This page was last updated 31 March 2008

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