Track laying part 3 "The 32 foot panels!"
Thanks to a timely intervention by Buffalo who pointed out my error in assuming that my track should be built from 60 foot panels http://www.rmweb.co.uk/community/index.php?/blog/1131/entry-13638-track-laying-part-2/ , a slight rethink was nessessary! My project is set in 1905 and as 60 foot track panels didn't come into existance on the Great Western Railway until 1929, this length would be completely inappropriate for my layout. Thirty two foot rail sections first appeared on main lines in the 1870s, with their use spreading onto branch lines at a later date. Eleven, twelve or even thirteen sleepers were used to support the rail, this number being dependent upon how soft the underlying ground was found to be. I'm assuming that this rail would still be in use on a branchline around the turn of the 20th century. The sleepers were arranged on 3 foot centres, closing to two foot centres at the rail joints. In 7mm scale, 32 feet equates to a rail length of 224 mm. A 10 inch wide sleeper scales out at approximately 6mm, 3 foot sleeper centres scale out at 21mm. This means that i needed a 15 mm space between each sleeper, decreasing to 11 mm at the rail joints. Fortunately the track that I've built using my jig allows the sleepers to slide up and down the rail, so the incorect spacing wasn't a problem and could be easily corrected. In order to get the sleepers in the right place, I cut some pieces of balsa to act as jigs between the sleepers. I also made some jigs to hold the half track at the right distance from the run round loop line. Copydex was then used to fix the sleepers and half track in position on the baseboard.
Half track and balsa sleeper spacers.
Half track from fiddle yard end.
Half track from incline end.
I built the points as individual pieces of trackwork, so once they had been placed in position it was nessessary to add or lengthen sleepers to support the rail. This was particularly important on the crossover at the end of the loop and the on the double slip/point combination.
End of loop crossover and baseboard joint.
End of loop crossover with additional sleepers.
Double Slip/Point timbers
Once the half track had been put in position and the glue had dried, roller gauges were used to position the other rail. to improve the appearance of the track, I'm planing on cutting the rail part way through to represent the 32 foot pannels and applying cosmetic fishplates across these joints.
32 foot, 11 sleeper track panel
Completed mainline and loop from fiddle yard end, with celebratory glass of red!
Completed mainline and loop from incline end
Well that's the state of play so far, I'm making progress but I've still got along way to go before the trackwork is finished. I've also discovered that there's a suprising amount of satisfaction to had just by pushing a wagon about with you finger tip on track that you've built! I can't say I'm looking forward to the wiring and I've still yet to settle on exactly how I'm going to operate the points. I don't like the impact on the tiebars caused by solenoids, so I may use some type of servo system. As usual your thoughts and advice are much appreciated.
Best wishes
Dave
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