The Anonymous Widower

A Detailed Layout Drawing For A Class 345 Train

Someone has requested this using a Freedom of Information request.

Click to access the detailed layout drawing for a Class 345 train.

The formation of a Class 345 train is as follows.



  1. Eight cars have motors and only one doesn’t.
  2. The train is composed of two identical half-trains, which are separated by the TS(W) car.
  3. There are four wheelchair spaces in the TS(W) car.

There is also other information on the drawing.

  • 454 seated passengers.
  • 1046 standing passengers calculated using a density of 4.025/m² of available floor standing area.
  • 4 wheelchair spaces.
  • 1500 passengers total
  • 51 priority spaces compliant with PRM-TSI
  • Trailer car length is 22,500 mm.
  • Driver car length is 23,615 mm.
  • Train length is 203,380 over mm. body ends.

There’s more information, based on what I read off the end of a train in Weight And Dimensions Of A Class 345 Train.

I estimated the weight of a nine car train to be 328.40 tonnes.

Kinetic Energy Of A Full Class 345 Train

I will assume the following

Train weight is 328.4 tonnes.

It is jam-packed with 1,500 passengers, with an average weight of 90 Kg. with their baggage.

Passenger weight is 13.50 tonnes

This gives a total train weight of 341.9

Calculating the kinetic energy for various speeds gives.

30 mph – 8.5 kWh

50 mph – 23.7 kWh

75 mph – 53.4 kWh

90 mph – 76.9 kWh

I used Omni’s Kinetic Energy Calculator.

Currently, the cost of a kWh of electricity is about fifteen pence to domestic customers, so accelerate a full Class 345 train to 90 mph, costs at that rate around £11.50.

The Deep Resource web site gives various conversion factors.

  • A kilogram of coal can be converted into 8.1 kWh.
  • A litre of diesel can be converted into 10 kWh.
  • A kilogram of hydrogen can be converted into 33.6 kWh.

It’s so easy to do these calculations today, as you can find little calculators and information all over the Internet.



July 1, 2018 - Posted by | Transport/Travel | , ,


  1. […] In A Detailed Layout Drawing For A Class 345 Train, I said that the formation of a Class 345 train for Crossrail is as follows. […]

    Pingback by Latest On The New London Overground Class 710 Trains « The Anonymous Widower | July 29, 2018 | Reply

  2. […] In A Detailed Layout Drawing For A Class 345 Train, I give the formation of a Crossrail Class 345 train. […]

    Pingback by Do Aventras Use Supercapacitors? « The Anonymous Widower | November 11, 2018 | Reply

  3. […] A Detailed Layout Drawing For A Class 345 Train, I give the formation of a nine-car Class 345 train […]

    Pingback by Is Bombardier’s 125 mph Bi-Mode Aventra With Batteries, A 125 mph Battery-Electric Aventra With Added Diesel Power To Extend The Range? « The Anonymous Widower | July 10, 2019 | Reply

  4. […] A Detailed Layout Drawing For A Class 345 Train, I detailed the formation of a Class 345 train as […]

    Pingback by Greater Anglia’s Class 720 Trains « The Anonymous Widower | November 16, 2020 | Reply

  5. How do the 7 car versions differ ie. which coaches are omitted?

    Comment by Max Batten | June 30, 2022 | Reply

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: