Welcome to Railway Forum!

Thank you for finding your way to Railway Forum, a dedicated community for railway and train enthusiasts. There's a variety of forums, a wonderful gallery, and what's more, we are absolutely FREE. You are very welcome to join, take part in the discussion, and post your pictures!

Click here to go to the forums home page and find out more.
Click here to join.

Go Back   Railway Forum > Diesel & Electric > Diesel & Electric Discussion

Class 90 electrics in tandem.

Thread Tools
Old 11th September 2020, 13:18
pre65's Avatar
pre65 pre65 is online now  
Senior Member
Join Date: Jun 2009
Location: Ashen-North Essex/Suffolk borders.
Posts: 3,253
Images: 89
Class 90 electrics in tandem.

There is a photo in the gallery showing two class 90 locos on a freight concist.


Two questions.

1) Why would any freight movement need that much horsepower, or is it in case one breaks down ?

2) I seem to remember reading that the current draw of two class 90s was too much for the overhead system in some locations, so the combination was effectively banned.

Reply With Quote
Old 11th September 2020, 15:05
JEB-245584/2's Avatar
JEB-245584/2 JEB-245584/2 is online now  
Senior Member
Join Date: Jul 2009
Location: Trafford
Posts: 585
Images: 380
There could be a few reasons for double heading Philip ,
More power, so the locos aren't working flat out.
Insurance if one breaks down.
Extra brake force to control the train.
Second loco could be on a balancing move , so rather than run it light loco and pay for track access charges , crew etc, attach it onto another train.

You are correct about class 90's double heading but as far as I recall it's only on the Great Eastern mainline.
The West Coast overheads are rated higher for " juice extraction" so double heading is the norm .

Cheers John
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Forum Jump

All times are GMT +1. The time now is 11:34.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.