Train GraphicClick on the map to explore geographics
 
I need help
FAQ
Emergency
About .
 Travel & transport from BBC stories as at 22:35 02 May 2024
- Protesters held as asylum seekers' transfer thwarted
Read about the forum [here].
Register [here] - it's free.
What do I gain from registering? [here]		 18/05/24 - BRTA Westbury
22/05/24 - WWRUG / TransWilts update
02/06/24 - Summer Timetable starts
17/08/24 - Bus to Imber

On this day
2nd May (1999)
Last special train to Weymouth Quay (*)
Train RunningCancelled
21:59 Cardiff Central to Bristol Temple Meads
22:30 Cardiff Central to Bristol Temple Meads
Short Run
17:59 Cardiff Central to Penzance
18:18 Carmarthen to London Paddington
18:59 Cardiff Central to Penzance
19:15 Penzance to Bristol Temple Meads
19:18 London Paddington to Swansea
19:30 Cardiff Central to Portsmouth Harbour
19:48 London Paddington to Swansea
20:23 Swansea to London Paddington
20:30 Carmarthen to Bristol Parkway
20:30 Cardiff Central to Portsmouth Harbour
21:08 Paignton to Bristol Temple Meads
21:30 Cardiff Central to Frome
21:45 Penzance to London Paddington
Delayed
An additional train service has been planned to operate as shown 22:42 Exeter St Davids to Bristol Temple Meads
•
PollsThere are no open or recent polls
•
Abbreviation pageAcronymns and abbreviations
•
Stn ComparatorStation Comparator
•
Rail newsNews Now - live rail news feed
•
Train companiesSelect from:
GWR
SWR
XC
Chiltern
TfL
TfW
WMR
Southern
• Site Style 1 2 3 4
Next departures • Bristol Temple Meads • Bath Spa • Chippenham • Swindon • Didcot Parkway • Reading • London Paddington • Melksham
Exeter St Davids • Taunton • Westbury • Trowbridge • Bristol Parkway • Cardiff Central • Oxford • Cheltenham Spa • Birmingham New Street
May 02, 2024, 22:40:35 *
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
[260] Vintage film - how valid are these issues today?
[80] Rail unions strike action 2022/2023/2024
[46] Leven, Fife, Scotland, fast forward a month
[42] Train drivers "overwhelmingly white middle aged men"
[34] underground plans for Bristol update.
[34] Visiting the pub on the way home.
 
News: A forum for passengers ... with input from rail professionals welcomed too
 
   Home   Help Search Calendar Login Register  
Great Western Coffee Shop > Journey by Journey > Portsmouth to Cardiff > Theoretical Design For A New DMU For Portsmouth-Cardiff Services
Pages: 1 2 [3] 4 5 6
« previous next »
  Print  
Author Topic: Theoretical Design For A New DMU For Portsmouth-Cardiff Services  (Read 24572 times)
devon_metro
Hero Member
*****
Posts: 5175



View Profile
« Reply #30 on: May 30, 2008, 18:11:15 »
The government is silly. The fact that they have no money in the kitty and the fact that so much money is raked in through (rising!) fuel taxes sadly means the government (at present) is going to be reluctant to invest money is something that they don't get money is such massive amounts back.
Logged
swlines
Hero Member
*****
Posts: 1178


View Profile Email
« Reply #31 on: May 30, 2008, 18:17:22 »
Yeah, ^1.1bn~ from each new franchise is clearly far too little to give to the government!!  Shocked Roll Eyes
Logged
dog box
Hero Member
*****
Posts: 653


View Profile
« Reply #32 on: June 02, 2008, 20:28:17 »
4 car turbostars will do
Logged
All postings reflect my own personal views and opinions and are not intended to be, nor should be taken as official statements of first great western or first group policy
John R
Hero Member
*****
Posts: 4416


View Profile
« Reply #33 on: June 02, 2008, 22:49:57 »
I agree. Would be absolutely fine.
Logged
Btline
Hero Member
*****
Posts: 4782



View Profile
« Reply #34 on: June 03, 2008, 12:03:01 »
Quote from: John R on June 02, 2008, 22:49:57
I agree. Would be absolutely fine.

Yes, 4 cars would offset seat reductions.

You would want 172s.
Logged
swlines
Hero Member
*****
Posts: 1178


View Profile Email
« Reply #35 on: June 03, 2008, 12:11:55 »
I'd rather throw up at the opportunity of seeing 75mph Turbostars on the Cardiff Portsmouth route ... there is a high linespeed between Filton and Cardiff you know...
Logged
Btline
Hero Member
*****
Posts: 4782



View Profile
« Reply #36 on: June 03, 2008, 12:16:25 »
Quote from: swlines on June 03, 2008, 12:11:55
I'd rather throw up at the opportunity of seeing 75mph Turbostars on the Cardiff Portsmouth route ... there is a high linespeed between Filton and Cardiff you know...

172s are 100 mph.
Logged
devon_metro
Hero Member
*****
Posts: 5175



View Profile
« Reply #37 on: June 03, 2008, 12:21:41 »
Depending on how they are geared, the LO varients will be 75mph.
Logged
swlines
Hero Member
*****
Posts: 1178


View Profile Email
« Reply #38 on: June 03, 2008, 12:25:22 »
Quote from: Btline on June 03, 2008, 12:16:25
Quote from: swlines on June 03, 2008, 12:11:55
I'd rather throw up at the opportunity of seeing 75mph Turbostars on the Cardiff Portsmouth route ... there is a high linespeed between Filton and Cardiff you know...

172s are 100 mph.
172s will struggle to get to 100mph - they're designed to be highly geared to allow for high acceleration at the low end of the spectrum, optimum acceleration will probably be up to about 55mph... then a sloooooooooooooooooooooooooow increase to 100mph. I know where I'm coming from on this one so I wouldn't try argue it!

170s would be more suitable - shame the production line is currently full with 172s. Diesel 444 is still the best bet.
Logged
devon_metro
Hero Member
*****
Posts: 5175



View Profile
« Reply #39 on: June 03, 2008, 12:36:25 »
Turdostars don't even have corridor connections so get a no from me!

Diesel electrostars perhaps.
Logged
Btline
Hero Member
*****
Posts: 4782



View Profile
« Reply #40 on: June 03, 2008, 13:34:22 »
172 have better accererlation than 170s.

LM▸ (London Midland - recent franchise) 172s have corridor connexions (not the type in my avatar- that's a LO/Chiltern 75 mph version).

Perfect! Grin
Logged
devon_metro
Hero Member
*****
Posts: 5175



View Profile
« Reply #41 on: June 03, 2008, 16:48:42 »
Still rather a 444 diesel - no un-needed body tilt profile.
Logged
Btline
Hero Member
*****
Posts: 4782



View Profile
« Reply #42 on: June 03, 2008, 16:57:25 »
I think tilt profile is a requirement now (obviously not for SWT▸ (South West Trains) as you can't tilt with third rail).
Logged
devon_metro
Hero Member
*****
Posts: 5175



View Profile
« Reply #43 on: June 03, 2008, 16:58:51 »
Why is it required  Huh
Logged
Btline
Hero Member
*****
Posts: 4782



View Profile
« Reply #44 on: June 03, 2008, 17:01:21 »
I remember reading some stuff about clearance between tilting and non tilting stock to prevent scrapes.

Don't quote me on it by the way - it may not be true.....
Logged
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 [3] 4 5 6
  Print  
« previous next »
 
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 page • Jump to Forum Home Page