Engineers use a flaming rope to expand railway tracks

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Daniel van Flymen

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Daniel van Flymen  asked the Naked Scientists:
   Hi Chris,

Just heard you on 702.

Regards to the railway line, I believe that engineers use something called a flaming rope which is literally a steel rope flooded with gas and set on fire beside the steel track---this expands the track before it is welded.

Best Regards,

Daniel van Flymen
Physics Student,
University of the Witwatersrand
What do you think?
« Last Edit: 17/09/2011 08:30:01 by _system »

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Offline Geezer

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Engineers use a flaming rope to expand railway tracks
« Reply #1 on: 17/09/2011 06:34:00 »
Hi Daniel,

Yes, that technique was used, and it may still be used sometimes, though I think it's more common to pretension the rail using hydraulic rams these days. I suppose it's bit like tuning a very large piano!
There ain'ta no sanity clause, and there ain'ta no centrifugal force Šther.