Templot Club Archive 2007-2020                             

topic: 3724Panel lengths
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posted: 25 Jul 2020 13:46

from:

Graham Long
 
 

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I am sure this question has been asked before but I couldn't find by using search.
Are there any rules for the situation where a length of plain track isn't a multiple of track panel length. In my case 44"6'

posted: 25 Jul 2020 14:19

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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Graham Long wrote:
I am sure this question has been asked before but I couldn't find by using search.
Are there any rules for the situation where a length of plain track isn't a multiple of track panel length. In my case 44'-6" 
Hi Graham,

Do you mean rules in Templot? No.

If you mean rules on the ground, each company will have their own rules for the economic use of rail. For example by always leaving usable off-cut lengths. If you need a 14ft rail and have one 17ft to hand, you might think to shorten that one. But that would leave an unusable 3ft length. Whereas if you cut your 14ft from a fresh 44ft length, you would have a usable 30ft rail remaining.

However, the general principle is that you cut the rail to fit and drill two new fish-bolt holes. The sleepers will then be closed up towards the joint, 12" to the first sleeper and then mostly by eye in the remaining space.

cheers,

Martin.

posted: 25 Jul 2020 14:36

from:

Graham Long
 
 

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Martin

What I am getting at is, as an example, if the length of track was say a 100' and panel lengths were normally 45' how would this be handled? eg would there be 2 x 45 plus a 10'. Is there a minimum length that would used eg 20'? So in this case for example would 2x 40' plus a 20' length.
I suppose, as you say, this depends on the railway company.
Regards
Graham

posted: 25 Jul 2020 15:01

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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Graham Long wrote:
Martin

What I am getting at is, as an example, if the length of track was say a 100' and panel lengths were normally 45' how would this be handled? eg would there be 2 x 45 plus a 10'. Is there a minimum length that would used eg 20'? So in this case for example would 2x 40' plus a 20' length.
I suppose, as you say, this depends on the railway company.
Regards
Graham
Hi Graham,

Yes it depends on the company, the period, and the site. For example a 10ft length may be ok in a goods loop, but not in the main line. But it wouldn't be 2 x 40ft. That means cutting and drilling all three, and leaving some unusable 5ft offcuts. More likely to be 1 x 30ft, 1x 45ft, 1 x 25ft. That means cutting only two lengths, leaving usable 20ft and 15ft lengths. And not having the two short lengths together.

However, there is almost nothing that could be written in reply to your question which can't be contradicted by someone posting a photo showing the exact opposite. :)

cheers,

Martin.

posted: 25 Jul 2020 15:15

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Graham Long
 
 

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Martin
Thanks for that. I will just have to do a bit of thinking when addressing this problem and calculate the least wasteful use of materials. Makes sense. Within reason there is no engineering problem with short lengths. I would guess that 10' might be a minimum.

Regards
Graham



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