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Great Western Coffee Shop > Journey by Journey > London to Swindon and Bristol > RE: HST Speed
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Author Topic: RE: HST Speed  (Read 9858 times)
pullman
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« on: January 21, 2010, 20:41:45 »
What is the top speed experinenced on a HST▸ (High Speed Train (Inter City class 43 125 units)) from Cheltenham Spa to London Paddington and where would you experience it?
« Last Edit: January 23, 2010, 19:20:09 by pullman » Logged
devon_metro
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« Reply #1 on: January 21, 2010, 20:57:33 »
125 Swindon -Reading and Reading to Hayes (ish)
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pullman
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« Reply #2 on: January 21, 2010, 21:00:22 »
Thanks, I was just wondering as I somtimes travel down that route.
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Chris from Nailsea
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« Reply #3 on: January 21, 2010, 21:02:07 »
Welcome to the Coffee Shop forum, pullman!  Smiley
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IndustryInsider
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« Reply #4 on: January 22, 2010, 12:53:54 »
Quote from: devon_metro on January 21, 2010, 20:57:33
125 Swindon -Reading and Reading to Hayes (ish)

Though they have to slam on the anchors and reduce to 120mph between Cholsey and Goring due to signal distances!
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pullman
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« Reply #5 on: January 22, 2010, 20:54:06 »
From what I know, most HST▸ (High Speed Train (Inter City class 43 125 units)) services only go above 100 mph somwhere between
Swindon and Paddington. If I am right! Wink
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thetrout
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« Reply #6 on: January 23, 2010, 00:10:42 »
HST▸ (High Speed Train (Inter City class 43 125 units)) Reading > Swindon None Stop always produces impressive speeds Smiley
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Grin Grin Grin Grin
devon_metro
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« Reply #7 on: January 23, 2010, 10:48:23 »
Quote from: pullman on January 22, 2010, 20:54:06
From what I know, most HST▸ (High Speed Train (Inter City class 43 125 units)) services only go above 100 mph somwhere between
Swindon and Paddington. If I am right! Wink

There are a number of 110 mph sections between Reading & Taunton and Bristol & Taunton. The linespeed from Swindon - Westerleigh is also touching at 125mph however the ride was a bit ropey last time I went over it.
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eightf48544
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« Reply #8 on: January 23, 2010, 11:56:51 »
Padd to Slough booked 14minutes is 79 mph start stop for 18.4375 miles.

But you don't get the 40 minute sprints from Bath to Reading 70.9 miles in 40 minutes which is around 106 average start stop you got in teh late 70s when the HSTs▸ (High Speed Train (Inter City class 43 125 units)) really were HSTs.
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moonrakerz
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« Reply #9 on: January 23, 2010, 13:36:15 »
Quote from: eightf48544 on January 23, 2010, 11:56:51
............ late 70s when the HSTs▸ (High Speed Train (Inter City class 43 125 units)) really were HSTs.

Yes indeed !

"a new World diesel speed record was set up between Paddington and Chippenham, Wiltshire - the 94 miles being travelled in just 50 minutes and 31 seconds. This involved an average speed of 111.7 mph, five miles per hour faster than the than the Tokaido trains of Japan which had previously held the record for the swiftest scheduled service".  (Jun 1979)

What "bullet trains" ??
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12hoursunday
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« Reply #10 on: January 28, 2010, 13:17:42 »

Quote from: devon_metro on January 21, 2010, 20:57:33
125 Swindon -Reading and Reading to Hayes (ish)

Huh? or maybe between West Ealing and Ealing Broadway. On clear signals drivers dont shut off till Waitrose and apply the brakes for the 100 as we pass through Ealing Broadway!

Quote from: moonrakerz on January 23, 2010, 13:36:15
Quote from: eightf48544 on January 23, 2010, 11:56:51
............ late 70s when the HSTs▸ (High Speed Train (Inter City class 43 125 units)) really were HSTs.

Yes indeed !

"a new World diesel speed record was set up between Paddington and Chippenham, Wiltshire - the 94 miles being travelled in just 50 minutes and 31 seconds. This involved an average speed of 111.7 mph, five miles per hour faster than the than the Tokaido trains of Japan which had previously held the record for the swiftest scheduled service".  (Jun 1979)

What "bullet trains" ??
I was of the understanding that the record was around 148 mph somewhere on the East Coast
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The world record for the fastest diesel-powered train, a speed of 148 mph (238 km/h), was set by an HST on 1 November 1987
http://en.wikipedia.org/wiki/InterCity_125
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The Grecian
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« Reply #11 on: January 28, 2010, 21:45:26 »
I think the 148mph record was between York and Darlington - it's certainly an obvious place. Spain and Russia have both claimed to beat the record speed for diesels but those times are still unofficial. A 2+5 set also managed Newcastle-Kings Cross in 2h19min.
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