Train GraphicClick on the map to explore geographics
 
End of through trains
Bristol to Waterloo?

 
Please sign our petition
(more information)
 
Campaign links here
Travel & transport from BBC stories as at 05:35 29 Nov 2021
* Covid: Dutch police arrest quarantine hotel escapee couple
* Covid: South Africa's president calls for lifting of Omicron travel bans
- Venezuelan migrants seeking a new home in Chile
* Barbados prepares to cut ties with the Queen
- The underwater 'kites' generating electricity as they move
Read about the forum [here].
Register [here] - it's free.
What do I gain from registering? [here]
 03/12/21 - TWSW AGM - online
09/12/21 - Award Event - CRN
19/01/22 - MTUG - regular meeting
08/03/22 - WWRUG AGM - B-o-A
Random Image
Train RunningCancelled
04:57 Reading to Redhill
06:43 Redhill to Reading
06:46 Reading to Gatwick Airport
07:01 Shalford to Reading
08:32 Gatwick Airport to Reading
Short Run
21:15 Penzance to London Paddington
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
November 29, 2021, 05:42:58 am *
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
[221] Stranded on a train for 17 hours !
[128] Masks To Become Compulsory On Public Transport Again
[84] XC short notice alterations due to driver unavailability.
[53] Are the railways fit for their (future) purpose?
[52] Day one - cruising in the time of Covid
[36] Great Western Railway: on-board catering, buffets, Travelling ...
News: A forum for passengers ... with input from rail professionals welcomed too
 
   Home   Help Search Calendar Login Register  
Pages: [1]
  Print  
Author Topic: 150 fails to rescue 153 at Truro  (Read 3456 times)
woody
Hero Member
*****
Posts: 525


View Profile
« on: July 11, 2010, 10:26:08 am »

Caught the 1906 Penzance to Exeter 150 unit yesterday.On arrival at Truro I noticed a 153 in the up side siding which I had seen there on my downward journey earlier.All the passengers were then asked to de-train while our 150 ran empty to the siding in an attempt to couple to it.It soon became apparent that there was a problem with the 153 as the two units never actually physically coupled and the rescue attempt was eventually aborted.The 150 left the 153 in the siding at Truro and after picking up some puzzled passengers proceeded on its way.Anyone know what the problem was/is. 
Logged
smithy
Hero Member
*****
Posts: 471


View Profile
« Reply #1 on: July 11, 2010, 06:41:13 pm »

370 in sidings has oil pressure problems so will not run,as such the air bags will be lower than the 150 so unable to couple up.best bet is to drop the air bags on rescue set so it can couple and start to transfer air through.
Logged
inspector_blakey
Hero Member
*****
Posts: 3574



View Profile
« Reply #2 on: July 11, 2010, 09:56:57 pm »

Just to translate in case anyone's not familiar with DMUs (Diesel Multiple Unit), since the engine on the 153 won't run the compressor for the air system won't run either. So the air suspension will be a bit deflated meaning that the 153 will be sitting slightly low on its wheels. That means that a unit with fully charged suspension will have its coupler a bit higher up than the ailing 153 and because of the difference in coupler heights they won't actually engage!
Logged
caliwag
Hero Member
*****
Posts: 340


View Profile
« Reply #3 on: July 11, 2010, 11:12:42 pm »

I understand but that's not going to cut any ice with passengers.
I cannot believe it's that near the knuckle. The Maritime seems to work well when I have been there, but surely there must be a back up...air suspension notwithstanding.
Logged
devon_metro
Hero Member
*****
Posts: 5175



View Profile
« Reply #4 on: July 11, 2010, 11:56:37 pm »

You can't plan for low air pressure, couplers need to be at similar heights in order couple correctly. If you planned for situation then you'd need a DMU (Diesel Multiple Unit) where air pressure was controllable where since the compressor runs off the engine this isn't possible. What's needed is a fleet of DMUs that doesn't leak air pressure!!
Logged
slippy
Sr. Member
****
Posts: 135


View Profile Email
« Reply #5 on: July 12, 2010, 03:29:42 pm »

2C45 EXD (Exeter St Davidsnext trains ) to PNZ should of dropped its class 153 at Truro today to try again....
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]
  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 a customer 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). Forum hosted by Well House Consultants

Jump to top of pageJump to Forum Home Page