Correcting an omission.
I’ve touched on couplers before, when I changed the coupling on my N gauge wagons, but one of my longtime readers, George O. recently asked me about the different types of couplers and I realised I’d never really explained this.
I started writing a post on the subject but then discovered this great guide by John at chambs123 on YouTube. He does a better and more thorough job than I could so I’ll leave it John to explain. He delves into the mysteries of Hornby, Triang, Bachmann, Lima, Trix, Roco and Dapol couplers.
John also references IC82’s videos (who sadly doesn’t seem to be uploading to youtube anymore). His first video on the subject is below.
George, hope this helps.
As always, if there’s a model railway topic that you struggle with drop me a line or add a comment below and I’ll see what I can do to help, explain or try out a solution.
> A final, personal, note: I spend a huge amount of time testing, photographing, writing and researching techniques for these articles and pay for all the running costs of MRE out of my own pocket. If you found this article useful you can support me by making a donation on my fund-raising page. Thanks and happy modelling, Andy.

Andy is a lifelong modeler, writer, and founder of modelrailwayengineer.com. He has been building model railways, dioramas, and miniatures for over 20 years. His passion for model making and railways began when he was a child, building his first layout at the age of seven.
Andy’s particular passion is making scenery and structures in 4mm scale, which he sells commercially. He is particularly interested in modelling the railways of South West England during the late Victorian/early Edwardian era, although he also enjoys making sci-fi and fantasy figures and dioramas. His website has won several awards, and he is a member of MERG (Model Railway Electronics Group) and the 009 Society.
When not making models, Andy lives in Surrey with his wife and teenage son. Other interests include history, science fiction, photography, and programming. Read more about Andy.