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Post by Tubeboy on Apr 24, 2006 10:45:01 GMT
what is the gradient going east from bow road? In solidbonds dvd it says the gradient is the steepest on lu. I know the approach to east finchley is 1 in 50, what about the eastbound central up into stratford?  |
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Deleted
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Post by Deleted on Apr 24, 2006 21:14:14 GMT
So I believe, e/b into Stratty is 1/42.
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DrJimi
Virtual District Line construction engineer and arborist
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Post by DrJimi on Apr 24, 2006 22:58:40 GMT
Bow EB to Bromley-by-Bow appears to be 1/51 for the first 50m, then 1/38, 1/39, 1/40 for the remainder of the climb to the 20 PSR at about the 380m point. Interestingly, I also note a rise of 1/38 for the final 250m climb into Whitechapel on the WB. However, the worst climb/drop I see on the DL is leaving Barking WB (pfm6 ) to East Ham, with a 1/40 climb on the flyover to signal FF6 and then a 1/35 drop during a 400m section. I just watched the video of that section to confirm and the downhill 1/35 resembles a rollercoaster to me  Didn't realise it was that steep from previous video viewing. |
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Post by marty on May 5, 2006 15:16:19 GMT
what is the gradient going east from bow road? In solidbonds dvd it says the gradient is the steepest on lu. I know the approach to east finchley is 1 in 50, what about the eastbound central up into stratford? Wot Solidbonds Dvd? |
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Phil
In memoriam
RIP 23-Oct-2018
Posts: 9,473
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Post by Phil on May 5, 2006 18:55:43 GMT
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Post by ttran on May 7, 2006 10:00:27 GMT
OT: Bahh those gradients ain't got nuffin' on our Harbour Bridge approach from Wynyard station here in Sydney. 1 in 25!
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Post by Dmitri on May 7, 2006 15:53:53 GMT
Russian Metros allow 1/25 (or "40 thousandths", as we say) as normal, and up to 1/16.7 (60/1000) under extreme circumstances (can be found in St. Petersburg and Baku). Might look interesting . |
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Post by Tomcakes on May 7, 2006 16:11:48 GMT
Cromford and High Peak was 1 in 19 IIRC - steepest line worked soley on friction. Good old J94s (proper ones, not repainted NCB saddletanks)!
Though IIRC Snowdon gets up to 1 in 4 at times?
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Phil
In memoriam
RIP 23-Oct-2018
Posts: 9,473
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Post by Phil on May 7, 2006 20:12:27 GMT
Stamford Peaks like was 1 in 19 IIRC - steepest line worked soley on friction. Good old J94s (proper ones, not repainted NCB saddletanks)! Though IIRC Snowdon gets up to 1 in 4 at times? Do rack railways count? |
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Deleted
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Post by Deleted on May 7, 2006 20:28:47 GMT
Stamford Peaks like was 1 in 19 IIRC - steepest line worked soley on friction. Good old J94s (proper ones, not repainted NCB saddletanks)! Though IIRC Snowdon gets up to 1 in 4 at times? Do rack railways count? Part of the Lyon Metro (Line C, I think) has rack and pinion! |
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Post by Tomcakes on May 9, 2006 19:42:24 GMT
That's why I said that Cromford and High Peaks was the steepest *friction* like - Rack Railways are generally regarded seperately.
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Deleted
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Post by Deleted on May 9, 2006 20:25:36 GMT
That's why I said that Stamford Peaks was the steepest *friction* like - Rack Railways are generally regarded seperately. I think you mean the Cromford & High Peak (long since closed of course) - www.goingloco.neave.com/highpeak/part1.htmlApologies if I've not posted the link correctly. |
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Post by Tomcakes on May 9, 2006 21:04:43 GMT
Yes, that's the one - my brain failing on me!
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Post by russe on May 10, 2006 1:11:09 GMT
That's why I said that Cromford and High Peaks was the steepest *friction* like - Rack Railways are generally regarded seperately. That's true. The normally-accepted gradient limit for 'non-assisted' traction is 1:16 (although the C&HP had a short section of 1:14). I believe the steepest rack railway is the Pilatus line in Lucerne, much of which is 1:2. I've been on it, and believe me, it's scary! Russ |
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Post by CSLR on May 10, 2006 7:58:53 GMT
Cromford and High Peak was 1 in 19 IIRC - steepest line worked soley on friction. What about the line just outside King William Street station on the City & South London Railway? That was also friction operated and was 1 in 14! I think you mean the Cromford & High Peak (long since closed of course) Not quite. A short section of the Cromford and High Peak is still used as a goods line. |
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Didn't realise it was that steep from previous video viewing.
