Interesting pictures...

[Galteemore]

Who knew the 800 class got to Portrush - painted black ? 

[airfixfan]

Only the clock tower is slightly accuarate!

[Horsetan]

11 hours ago, airfixfan said:

Only the clock tower is slightly accuarate!

The smokebox door hinges are on the wrong side of the door ring....

....and the outside motion looks pretty half-hearted as well. 

[Broithe]

We had a forty foot straight on a layout once, in a carport with a polycarbonate roof and the ends closed in - we had considerable expansion/contraction issues, until we fitted Fleischmann joints with most of an inch of movement

I was reminded of it by this photo of the current heat expansion issue that the Romney, Hythe & Dymchurch Railway has.

They have run trains over that, apparently - gently, and with trackside personnel monitoring the progress to detect derailments...

 

As far as the layout was concerned, I remain convinced that the principal effect was actually the baseboard contracting, as the humidity was driven out, rather than the rails expanding in the high temperatures, although that would add a bit to the problem. The expansion of the metal was predictable to a fair degree of accuracy and was nowhere near enough to account for the total dimensional changes that we got.

[Horsetan]

11 hours ago, Broithe said:

We had a forty foot straight on a layout once, in a carport with a polycarbonate roof and the ends closed in - we had considerable expansion/contraction issues, until we fitted Fleischmann joints with most of an inch of movement

I was reminded of it by this photo of the current heat expansion issue that the Romney, Hythe & Dymchurch Railway has.

They have run trains over that, apparently - gently, and with trackside personnel monitoring the progress to detect derailments.....

This must be on the single-line Dungeness section. Presumably the service is less intensive than for the rest of the line!