Train GraphicClick on the map to explore geographics
 
I need help
FAQ
Emergency
About .
Travel & transport from BBC stories as at 05:15 20 Apr 2024
- Some Wales roads to revert to 30mph after backlash
- BBC presenter reports racist abuse on London train
Read about the forum [here].
Register [here] - it's free.
What do I gain from registering? [here]
 02/06/24 - Summer Timetable starts
17/08/24 - Bus to Imber
27/09/25 - 200 years of passenger trains

On this day
20th Apr (1789)
Opening of Sapperton Canal Tunnel

Train RunningCancelled
05:15 Plymouth to Penzance
07:40 Penzance to Plymouth
08:15 Penzance to London Paddington
19:19 Carmarthen to Swansea
Short Run
07:22 Exeter St Davids to Penzance
14:48 London Paddington to Carmarthen
18:52 London Paddington to Great Malvern
21:07 Gloucester to Bristol Temple Meads
Delayed
05:25 Swansea to London Paddington
06:30 Bristol Temple Meads to London Paddington
PollsThere are no open or recent polls
Abbreviation pageAcronymns and abbreviations
Stn ComparatorStation Comparator
Rail newsNews Now - live rail news feed
Site Style 1 2 3 4
Next departures • Bristol Temple MeadsBath SpaChippenhamSwindonDidcot ParkwayReadingLondon PaddingtonMelksham
Exeter St DavidsTauntonWestburyTrowbridgeBristol ParkwayCardiff CentralOxfordCheltenham SpaBirmingham New Street
April 20, 2024, 05:29:13 *
Welcome, Guest. Please login or register.

Login with username, password and session length
Forgotten your username or password? - get a reminder
Most recently liked subjects
[276] Somerset and Dorset Devonshire Tunnel flood
[265] Rail to refuge / Travel to refuge
[45] Rail delay compensation payments hit £100 million
[40] Problems with the Night Riviera sleeper - December 2014 onward...
[19] Difficult to argue with e-bike/scooter rules?
[18] Signage - not making it easy ...
 
News: A forum for passengers ... with input from rail professionals welcomed too
 
   Home   Help Search Calendar Login Register  
Pages: 1 [2]
  Print  
Author Topic: Replacement train orders - classes 465/6 and perhaps 165/6?  (Read 3357 times)
Mark A
Global Moderator
Hero Member
*****
Posts: 1339


View Profile
« Reply #15 on: November 21, 2022, 13:35:00 »

Thanks. Sounds a world apart from the GWR (Great Western Railway) 166s. Externally, they present as outrageously noisy and not too good from the inside either. It's surprising to find that they were built when they were.

Time for another hat tip to the 158/159 which for some reason now also fairly ancient, especially once aboard seem to hit a sweet spot and even externally don't make such a militant confrontational racket as the 166s. A big improvement at Paddington is that the 165/166s have ceased to impact the environment of the Hammersmith and City platforms.

Mark
Logged
stuving
Transport Scholar
Hero Member
******
Posts: 7163


View Profile
« Reply #16 on: November 21, 2022, 14:20:12 »

Very quiet when operating in 25KV mode.  Wink

More seriously though, in diesel mode the power pack vehicle is louder than, for example, an IET (Intercity Express Train) or Turbo engine, but not by much.  And of course the rest of the train is extremely quiet unlike DMUs (Diesel Multiple Unit) with underfloor engines.  You might need a larger power pack vehicle, and therefore a little more noise, if you were to provide five passenger vehicles as the current examples only go up to four passenger vehicles.

I don't think power is an issue. The class 755/4 has nearly 2 MW of grunt, and is overpowered by British standards using only three of its four engines. (I think they fit four more for mass balance than anything else.)

What I'm less sure about is whether Stadler's kit of bits of train can do a 5-car bi-mode. But I am sure they can find a way, even if they don't have one already.
Logged
IndustryInsider
Data Manager
Hero Member
******
Posts: 10116


View Profile
« Reply #17 on: November 21, 2022, 14:33:18 »

What I'm less sure about is whether Stadler's kit of bits of train can do a 5-car bi-mode. But I am sure they can find a way, even if they don't have one already.

Let’s hope so.  A tri-mode fleet with a mixture 4/5 car units plus power pack vehicle, and a bi-mode (diesel and battery) 3-car fleet for most of the branches would be ideal replacements IMHO (in my humble opinion).
Logged

To view my GWML (Great Western Main Line) Electrification cab video 'before and after' video comparison, as well as other videos of the new layout at Reading and 'before and after' comparisons of the Cotswold Line Redoubling scheme, see: http://www.dailymotion.com/user/IndustryInsider/
GBM
Transport Scholar
Hero Member
******
Posts: 1479


View Profile Email
« Reply #18 on: November 21, 2022, 15:28:07 »

What I'm less sure about is whether Stadler's kit of bits of train can do a 5-car bi-mode. But I am sure they can find a way, even if they don't have one already.

Let’s hope so.  A tri-mode fleet with a mixture 4/5 car units plus power pack vehicle, and a bi-mode (diesel and battery) 3-car fleet for most of the branches would be ideal replacements IMHO (in my humble opinion).

Any chance of putting IndustryInsider on the DfT» (Department for Transport - about) board please - you've my vote if there's a vote involved!
Logged

Personal opinion only.  Writings not representative of any union, collective, management or employer. (Think that absolves me...........)
eightonedee
Transport Scholar
Hero Member
******
Posts: 1535



View Profile
« Reply #19 on: November 21, 2022, 16:18:51 »

Quote
If I were a betting man, I suspect the Class 769 project will bear fruit late next year that is already rotten and we will then bumble on for a further year or two with hopeless reliability on the North Downs (but more Turbos in the west at least!) before finally the DfT» (Department for Transport - about)» /GBR (Great British Railways)▸ gives up with them.  It will cascade something temporary in from elsewhere and order a new fleet of units for GWR (Great Western Railway) of one or two classes/types (hopefully FLIRTS) to replace the cascaded units, any remaining Castles, and DMUs (Diesel Multiple Unit)▸ from the 150/158/165 and 166 fleet...but that will put us around the 2026/7 mark.

That would be the most satisfactory outcome to what I think will be a frustrating next few years.

Boy, am I glad I am now retired, and don't have to look forward to this on my old North Downs commute!

BTW (by the way), II - if that's the most satisfactory outcome, what does a less satisfactory one look like - struggling on for years with 769s & Turbos?
Logged
JayMac
Data Manager
Hero Member
******
Posts: 18918



View Profile
« Reply #20 on: November 21, 2022, 16:32:22 »

Time for another hat tip to the 158/159 which for some reason now also fairly ancient, especially once aboard seem to hit a sweet spot and even externally don't make such a militant confrontational racket as the 166s.

The 158/159s may be quieter than 165/166s but I wouldn't say they were particularly quiet. SWRs» (South Western Railway - about) examples can be very noisy inside due mainly to the aircon system. Externally, I can hear them accelerating from my flat, half a mile from the station.
Logged

"Build a man a fire and he'll be warm for the rest of the day. Set a man on fire and he'll be warm for the rest of his life."

- Sir Terry Pratchett.
Clan Line
Hero Member
*****
Posts: 858



View Profile
« Reply #21 on: November 21, 2022, 17:28:20 »

Time for another hat tip to the 158/159 which for some reason now also fairly ancient, especially once aboard seem to hit a sweet spot and even externally don't make such a militant confrontational racket as the 166s.

The 158/159s ..................... SWRs» (South Western Railway - about) examples can be very noisy inside due mainly to the aircon system.

At least they have aircon - and it usually works !



































Logged
Electric train
Transport Scholar
Hero Member
******
Posts: 4362


The future is 25000 Volts AC 750V DC has its place


View Profile
« Reply #22 on: November 21, 2022, 18:15:20 »

Time for another hat tip to the 158/159 which for some reason now also fairly ancient, especially once aboard seem to hit a sweet spot and even externally don't make such a militant confrontational racket as the 166s.

The 158/159s may be quieter than 165/166s but I wouldn't say they were particularly quiet. SWRs» (South Western Railway - about) examples can be very noisy inside due mainly to the aircon system. Externally, I can hear them accelerating from my flat, half a mile from the station.

We seem to forget how noisy and drafty the old class 117 etc were especially when at 70mph
Logged

Starship just experienced what we call a rapid unscheduled disassembly, or a RUD, during ascent,”
IndustryInsider
Data Manager
Hero Member
******
Posts: 10116


View Profile
« Reply #23 on: November 21, 2022, 18:55:55 »

BTW (by the way), II - if that's the most satisfactory outcome, what does a less satisfactory one look like - struggling on for years with 769s & Turbos?

Possibly - all the GWR (Great Western Railway) DMUs (Diesel Multiple Unit) could probably soldier on for a decade or more with a bit of TLC (three letter code ) - or they could end up ordering a mixed bag of new local and regional trains from different manufacturers that are not as good as FLIRT's.
Logged

To view my GWML (Great Western Main Line) Electrification cab video 'before and after' video comparison, as well as other videos of the new layout at Reading and 'before and after' comparisons of the Cotswold Line Redoubling scheme, see: http://www.dailymotion.com/user/IndustryInsider/
Do you have something you would like to add to this thread, or would you like to raise a new question at the Coffee Shop? Please [register] (it is free) if you have not done so before, or login (at the top of this page) if you already have an account - we would love to read what you have to say!

You can find out more about how this forum works [here] - that will link you to a copy of the forum agreement that you can read before you join, and tell you very much more about how we operate. We are an independent forum, provided and run by customers of Great Western Railway, for customers of Great Western Railway and we welcome railway professionals as members too, in either a personal or official capacity. Views expressed in posts are not necessarily the views of the operators of the forum.

As well as posting messages onto existing threads, and starting new subjects, members can communicate with each other through personal messages if they wish. And once members have made a certain number of posts, they will automatically be admitted to the "frequent posters club", where subjects not-for-public-domain are discussed; anything from the occasional rant to meetups we may be having ...

 
Pages: 1 [2]
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.2 | SMF © 2006-2007, Simple Machines LLC Valid XHTML 1.0! Valid CSS!
This forum is provided by customers of Great Western Railway (formerly First Great Western), and the views expressed are those of the individual posters concerned. Visit www.gwr.com for the official Great Western Railway website. Please contact the administrators of this site if you feel that the content provided by one of our posters contravenes our posting rules (email link to report). Forum hosted by Well House Consultants

Jump to top of pageJump to Forum Home Page