Here is a big fantasy design I've been thinking about.
(It's not completely out of this world. I've measured up and it would actually fit in my house but I would have to make some huge sacrifices!)
Givens The givens for me are:
It has to be 4mm and OO.
It has to be classic period GWR, 1923-1939.
I want to see the railway in the landscape.
I want to see mainline locos and varied traffic.
The last two givens pretty much rule out BLTs because:
BLT stations usually fill the model leavin