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Salad
Locomotive Driver
Joined: May 19, 2003 Last Visited: Dec 4, 2008 Location: Highett
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Posted: Thu Sep 04, 2003 4:44 pm
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Hi Everyone,
Noticed in the tv guide (Melb) SBS has a show at 7.30 to do with a replica of Stephenson's Rocket and other early locos.
I think it is a reinactment to see which was the better loco of the time or something similar.
Anyhow, may be of some interest.
Keep railing,
Graham
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michaelgreenhill
Patron Saint of Alcohol

Joined: Jan 17, 1985 Last Visited: Dec 4, 2008 Location: Lost Somewhere In Time
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Posted: Thu Sep 04, 2003 5:47 pm
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BBC re-enactmant of the Rainhill trials.
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awsgc24
Minister for Railways
Joined: Feb 18, 2003 Last Visited: Dec 5, 2008 Location: Sydney, NSW
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Posted: Sun Sep 07, 2003 7:35 pm
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The SBS program shown on Sat 6 Sep at 7:30pm re-enacted the original Railhill locomotive trials on a preserved railway in Wales, using replica locomotives.
One of the criticisms of the Original trials was that firstly, the winning team of George Stevenson and son, had an insider advantage, and that secondly, deadlines were too tight for the other entrants to get their locomotives to work reliably.
In the retrial, all three locomotives, Rocket, Sans Pareil and Novelty were able to be run-in with sufficient time to overcome trivial faults or breakdowns. All were able to perform a significant proportion of the 30 mile test under load, and with things like speed and coal consumption being measured. In 1829, Sans Pareil and Novelty broke down after a relatively short distance, and were never really subjected to a true test.
On the other hand, the Stevensons had the "unfair" advantage of having already build about 50 locomotives already, and were presumably acheiving reasonable reliability already.
In the retrial Novelty, with its vertical boiler and smoke-box, revealed a serious fundamental design in that the acculumation of clinker started to choke the boiler halfway throught the 30 mile test, and that there was no easy way of getting rid of the clinker without wasting a lot of time, and perhaps having to put out the fire.
In the retrial, Rocket had a similar clinker problem, but at least the clinker could in theory be attacked with suitable poker. The program did not record whether Sans Pareil had a clinker problem.
When summing up the results, Rocket and Sans Pareil were very close in terms of speed and fuel comsumtion, with Novelty falling significantly behind. However, two elements of Rocket's design showed that it was the engine of the future, these features being the multiple tube boiler, and the firebed made of bars, which presumably with more practice, could tackle the clinker problem.
In summary, a very interesting program.
Did you notice the advertisments on SBS for a new brand of battery, called "Rocket"?
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KngtRider
Chief Commissioner
Joined: Jan 16, 2003 Last Visited: Nov 1, 2008 Location: http://www.nitroware.net
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Posted: Mon Sep 08, 2003 12:04 am
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I found the flyover of the 'rainhill' line with the floated bank and the first arch bridge a bit spooky.
I was thinking it was a closed line untill I saw the automatic signals :O
Any idea who/what runs on that line they showed.(Not the Wales branch)
Shame on NSW for menagle bridge when that bridge is still standing.
Why did they choose to do the re-enactment now though and not on an aniversary, the show said 2003 at the end but could have been 2002 or earlier.
I dunno im not convinced with the test, fact is that they are replicas and even if done close enough to the originals they would still not be the same, newer and better quality materials, better coal and water, slight modifications and so on.
Still amazing though that they have replicas of those dinosaurs that actually work and are permitted to run at more than a snails pace.
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Tonymercury
Dr Beeching
Joined: May 17, 2003 Last Visited: Dec 4, 2008 Location: Botany NSW
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Posted: Mon Sep 08, 2003 7:35 am
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| awsgc24 wrote: |
When summing up the results, Rocket and Sans Pareil were very close in terms of speed and fuel comsumtion, with Novelty falling significantly behind. However, two elements of Rocket's design showed that it was the engine of the future, these features being the multiple tube boiler, and the firebed made of bars, which presumably with more practice, could tackle the clinker problem.
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More important was the comment after the summary -
By the time that the L&M opened in 1830, "Rocket" was already an outdated locomotive.
Tony Bailey
A Yahoo Groups that may be of interest-
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awsgc24
Minister for Railways
Joined: Feb 18, 2003 Last Visited: Dec 5, 2008 Location: Sydney, NSW
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Posted: Mon Sep 08, 2003 5:44 pm
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| Tonymercury wrote: |
More important was the comment after the summary -
By the time that the L&M opened in 1830, "Rocket" was already an outdated locomotive. |
How true. The "Planet" class locomotive which suceeded "Rocket" already look like a modern steam locomotive, whereas Rocket look perculiar.
The most important victory of the Rainhill trials was to demonstrate that locomotives beat stationary engines for main line use, and that if there were any defects in the locomotive engines, there was plenty of potential development still to be be made.
George Stevenson, not being totally convinced of the sucess of locomotive haulage, arranged for two inclines of 1 in 96 on either side of the Railhill flat stretch, and a 1 in 48 incline down to the Liverpool wharves, to be suitable for cable haulage if need be. In practice, only the 1 in 48 incline need cable haulage for a few decades.
KngtRider will be interested to know that that the Original Liverpool to Manchester Railway is still in use, except for 500m at the Manchester end, where the line deviates into a new terminus. The flyover shots of the double track line in the SBS program would be of that line.
One size fits all?
_ Railway gauge _ _ _ _ : Mostly YES; Almost always 1435mm _ _ _ _ _ _ _ _ _ _ _ .
_ _ _ _ _ _ _ _ _ _ _ _ _ : except sugar cane trams, rocket launch pads, telescopes.
_ _ Shoe/hat/ ring sizes: NO_ _ _ _ _ .
May use SUW 2000 VGA to bridge break-of-gauge.
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