[MOC] [Instructions] BR Mark 1 Coaches (8 wide)

[sebulba56]

Hi !

I mentioned this project a few weeks ago, and it’s time to show it properly. Here is my reproduction of some British Railways Mark 1 coaches.

You can find the instructions here : 

for the full consist : https://reb.li/m/255828

for the open car : https://reb.li/m/255827

for the brake car : https://reb.li/m/255829

I’ve seen quite a few MOCs of these coaches, but none that ticked all the boxes I had in mind:

• Built in 8‑wide
• Faithful interior
• Able to handle R40 curves without looking too awkward

So here is the result. I decided to build one open coach and one brake coach to make a realistic consist. Both of them are 40 studs long, so a little smaller than the Orient express carriages (those are 46 studs long if I remember correctly)

The open car :

The brake car : 

 

On both coaches, all doors can be opened.

The main challenge reproducing the shape of these coaches is the curved section under the windows. Getting the curve itself is easy by using curved slopes. The tricky part is building the rest of the structure and mounting the windows on top while still leaving space for the seats. That’s where I got a bit clever: the seats are actually part of the structural reinforcement, and the windows rest directly on them.

The brake coach has the most interesting interior, with the guard’s compartment and a decent luggage area (imperials doing some serious buisness in here)

 

There isn’t much more to say about the build, I tried to reproduce as many details of the real coaches as faithfully as possible. It could be interesting to build them in other liveries, but that’s not something I’m planning for now. To finish, here are them pulled by the Small-Prairie (I love the color combination)

 

If you want to see videos of my trains running, check out my instagram page : @sebulba_creations.

That’s all! Let me know what you think ! 

[Ts__]

Nice. Not too simple, not too complex. And recognizable as well. Good!

 

50 minutes ago, sebulba56 said:

I’ve seen quite a few MOCs of these coaches, but none that ticked all the boxes I had in mind:

• Built in 8‑wide
• Faithful interior
• Able to handle R40 curves without looking too awkward

Sure?

I've also built BR MK.I coaches in various versions....

8-wide. But I think now, 7-wide is better for english rolling stock. With interior and for R40. But my coaches are longer and looks strange in R40^^

Thomas

[boformer]

2 hours ago, sebulba56 said:

The tricky part is building the rest of the structure and mounting the windows on top while still leaving space for the seats. That’s where I got a bit clever: the seats are actually part of the structural reinforcement, and the windows rest directly on them.

That's really smart! Your carriages look great, I love the colour scheme, the door mechanism and how round they are :)

[sebulba56]

On 3/20/2026 at 5:58 PM, Ts__ said:

Nice. Not too simple, not too complex. And recognizable as well. Good!

Sure?

I've also built BR MK.I coaches in various versions....

8-wide. But I think now, 7-wide is better for english rolling stock. With interior and for R40. But my coaches are longer and looks strange in R40^^

Thx ! To be honest, despite my researches, I did not stumble upon your MOC. It is pretty cool, I like how you brickbuilt the windows. Yeah the real coaches are pretty long so making them perfectly in scale does not fit with R40 tracks. About the 7 or 8 wide subject, it is difficult to answer as if you make them perfectly 1/48 scale, you end up between 7 and 8. 8 wide allows for more durable builds in this case. I don't think that there is one good choice, each one has its flaws.

On 3/20/2026 at 7:42 PM, boformer said:

That's really smart! Your carriages look great, I love the colour scheme, the door mechanism and how round they are :)

Thanks ! 

[Darkkostas25]

Lovely design, cosy-looking coaches 

[Feuer Zug]

Outstanding work! Lots of options and you've got the right amount of details so it will look great on any layout.

[idlemarvel]

Excellent work @sebulba56 they are very recognisable, and the opening doors are the icing on the cake. You have captured the curvature of the British coaches very well, which makes the opening doors even more impressive. I guess they are somewhat shorted than 1:45 scale in length. And thanks for taking the trouble to produce instructions.

BTW the ones by @Ts__ are not too bad either, although I think they would meet themselves coming on R40 curves!

[JopieK]

Thanks @sebulba56 for sharing... and congrats on the frontpage!

[LEGO Train 12 Volts]

On 3/20/2026 at 5:03 PM, sebulba56 said:

 

Wonderful rounded lines and perfectly represented interiors (I love those purple seats).

A meticulous job!

This photo, however, makes it even more beautiful because it's absolutely funny!