I doubt it's a new idea, but it has certainly been suggested a number of times on RMweb and was actually used in one of the challenge layouts on the previous forum: Thameside (Modern Minories)
Edit: a Lanky radial tank could find a home on that layout too, Clive.
So young it's still showing a yellow gape. Excellent picture, John. I'm looking forward to what else you're bird-stuffed garden can turn up.
lyndonsdad1, if you had 12 tree sparrows in your garden you were doing very well indeed as generally they are rare.
I love the hillside rising above the tunnel entrance. So often model railway tunnels carry the line under mysterious perfectly flat table-lands, but this looks like real landscape. The superelevation is rather nifty, too.
@northolland - thanks for the fuller explanation of how the layout works. I've updated my mashup above and hope it's nearer the mark this time.
I think this has been discussed on RMweb in the not too distant past (possibly even on the present incarnation) - worth a search as I recall there was some first hand information on the thread.
I've pasted together your signal box diagrams and if I've got it right, your system is something like this: as bri.s says, very nicely thought out and thoroughly railwaysome.
Edit: image updated in the light of northolland's explanation below.
There are plenty of layouts more complete and fully detailed than this one, but precious few with as much railwayness about them. Huge pity it has to go - I hope you find space for something as absorbing in you new home.
Any chance of an overall view or trackplan please?
I think you may possibly have made the mistake of acquiring knowledge of the Real Thing. Unfortunately there's quite a lot of that about on RMweb and if you read the offending posts without due care and inattention you may well find your enjoyment impaired in a number of common modelling situations. Other sources of information such as books and actually looking at the prototype are fortunately much easier to avoid, but you should in all cases take proper steps to preserve your precious ignorance or you may never be able to look another TMD layout in the face again.
The Fell had four engines for traction and two auxiliaries: make all of them Deltics and you've got my vote. Still waay too pretty for a Fell though.
Pullman Deltic now slightly improved with added fraudulin:
Sorry, I didn't read your OP carefully - the photo shows a model of a BGA and the RMweb thread on which it was posted suggests the model was converted from the "hopelessly short Lima KHA", which is more likely what you've got. However I can't find anything coded KHA on the web which could conceivably be the source for the models kevpeo converted. There should be someone round here who knows more than 0 about modern wagons and can give you a useful answer though.
I shall ignore your naming suggestion which is more appropriate for the two halves of a Turbostar (which is which - who can remember?).
An East Coast Blue Pullman is another matter however, top and tail of course. Or were you thinking of Quad-Arts?
A brief discussion of this topic occurred on the old RMweb: http://www.rmweb.co.uk/forum/viewtopic.php?f=5&t=17885 Sadly, Ken Hoole's book appears to be still out of print.
Sorry to stray off the GN, but could there have been a similar installation at York where the curve precluded a view along the main (inside) platforms? I distinctly remember northbound Deltics departing in the mid-late 70s to the accompaniment of an electric bell and wondering why an additional audible warning was needed.
This thread has turned into a fascinating exposition of railway operation - I can't wait for the book to come out
RMweb is slipping* - it took four three days from it's announcement for a complaint about the price of this model to be posted. Come on, folk, buck your ideas up.
Does anyone know when it's due?
*but not as badly as I first thought - what a relief
I think you are wrong, Colin. On DC all correctly wired trains move in the same direction. If you turn the train round the current is reversed but so is the train and it continues to move in the same direction as all the others.
Road Transport Images list cabs for the Ford D Mk I and Mk II, but they're in the "archived cabs" list so it's not clear whether they're still available and I can't say how accurate they are.