By sheer chance, quantum pairing, or harmonic convergence if you like, some years ago I was fortunate enough to receive a 1928 reprint Ordnance Survey “Contoured Road Map”, one inch to the mile, number 137, linen-backed, as a present. Very nice.
This covers an area bound by Launceston – pronounced, “Lanson” – and Callington, Cornwall, and Okehampton and Tavistock, Devon, the very epicentre of the legendary, and somewhat ethereal Boltorr branch.
It turns out this includes the very focus of the railway which exists only in my mind’s eye.
If you’d care to examine the entire map – click on the image for a larger version – you’ll find the location of the Boltorr branch somewhere along the Tavy, by-passing Okehampton, on its way from Tavistock to Moretonhampstead and, eventually, Exeter.
PS: I dare say this is extremely well copyrighted so please only use as an item for review or education. Thank you.
I had hoped to find a laser-cut bridge kit somewhere on the interwebs, but nothing looked quite right.
My DAS chip method is tedious, but it looks so good. I think I’m committed to it now, if only to maintain a “look” across the layout.
I looked around Google images for a bridge to base Boltorr’s on, but didn’t find an example which fitted Dumnonia’s needs better than the one illustrated on the cover of “Impermanent Ways v6“. So I’m not certain the rights’ issues involved here, but buy the book! The whole series is a huge resource if you model in this area.
The real issue when building a model bridge which never actually existed, is getting the arch right.
The photo of the bridge on the cover is on the oblique, so I used an image editor to square the perspective and match an ellipse to the arch.
I then reduced the image to black & white to produce a template. I’ll jiggle with the width of the bridge and the chord of the road deck to fit my location.
In Boltorr’s case, this means spanning the branchline, a siding and possibly an extension of the platform under the bridge. I will also have to adjust to accommodate the road level above.
At this point, I’m not considering a hi-tech solution. It’ll be a combination of printer settings and a pair of scissors.
For construction I’m going back to 2mm MDF with appliqué stonework courtesy of DAS. This provides the most stable foundation.
Boltorr Dam and the rail bridge abutments were built using foam-board which tends to take a form of its own if it possibly can. This is not necessarily a bad thing, but for engineering elements it’s a problem. MDF resists the urge to distort far better.
A bibliography, which has inspired me, but in no particular order. They’re all good:
The Princetown Branch Anthony R. Kingdom
Oxford Publishing Company – 1979 – isbn 86093 004 1 I found this one on eBay from a bookseller in Vancouver
Panoramic Dartmoor Adrian Oakes
Halsgrove – 2010 – isbn 978 0 85704 039 8 If you need an inspirational vista…
Impermanent Ways – The Closed Lines of Devon – v4 Devon Amyas Crump
Noodle Books – 2012 – isbn 978 1 9064 19 76 9
Impermanent Ways – The Closed Lines of Devon – v6 Cornwall and West Devon Amyas Crump
Noodle Books – 2013 – isbn 978 1 9064 19 99 8
Backtracking Around Friary, Laira and the Plym Bernard Mills
Pen & Ink Publishing – 2013 – isbn 978 0 9569858 4 2
Backtracking Around Millbay, Saltash & the Tamar Bernard Mills
Pen & Ink Publishing – 2016 – isbn 978 0 9934818 3 9 A new volume covering from Tavistock junction and up the Plym valley, is due in 2018. Let’s hope.
Creating a Backscene Paul Bambrick & John Ellis-Cockell
Ian Allen Publishing – 2016 – isbn 978 0 7110 3842 4
Creating Cameo Layouts Iain Rice
Wild Swan Books – 2016 – isbn 978 0 953877 17 1 This, along with the tiny layouts of Chris Nevard, is a huge influence
Modelling Grassland and Landscape Detailing Gordon Gravett
Wild Swan Books – 2013 – 978 1 908763 06 8 Gordon Gravett has two more books on this imprint, “Modelling Trees…”, pt1 – broadleaf, and, pt2 – conifers. The best
I’ve also found Model Rail’s “Ideas for Layouts – 2017” – Bauer Media, UK, to be very useful