Gradients: Blackfriars to Kings Cross St Pancras

[PeterY]

I recently travelled from Blackfriars to Kings Cross. Although it's a relatively short ride the gradients seemed quite steep.

Does anyone know the gradient profiles?

 

[westcoaster]

I recently travelled from Blackfriars to Kings Cross. Although it's a relatively short ride the gradients seemed quite steep.

Does anyone know the gradient profiles?

iirc blackfriars to city thameslink is 1 in 37

 

[user15681]

I thought there was a steep 1 in 29 gradient from Blackfriars into City Thameslink, after where it levels off into Farringdon. From Farringdon, there is another steep downhill which goes under the Circle/H&C/Met LUL, before a more gentle climb up into St Pancras. Others will confirm numbers.

 

[PeterY]

In railway terms, a gradient of 1 in 29 is very steep.

 

[user15681]

In railway terms, a gradient of 1 in 29 is very steep.

Don't quote me on that, I may well be wrong.

 

[EM2]

http://www.simsig.co.uk/dokuwiki/doku.php?id=usertrack:mans:westhampstead:panel_1#gradients

Moorgate Branch

Moorgate station is on the level. A brief dip downhill over the pointwork dives the line into Barbican Tunnel where the line climbs again at 1 in 58 and then 1 in 66. Barbican to Farringdon has moderate gradients throught, before a final 1 in 54 downhill into Farringdon.

Blackfriars Branch

From Blackfriars there is a steep 1 in 29 downhill into City Thameslink station. The latter is on a continuing downhill gradient of 1 in 32 before the line levels off just beyond the station for the run into Farringdon.

Farringdon Line to Kentish Town

A section of 1 in 29 followed by 1 in 33 takes the line down and under the Circle and Metropolitan LUL lines before the line climbs at a gentler 1 in 97 most of the way to King's Cross Thameslink alongside the LUL lines, albeit in a separate tunnel. Various more gentle gradients up and down take the line to St. Pancras International (Low Level) where a 1 in 66 gradient indicates the start of the climb out to daylight. A final section of 1 in 70 takes the Moorgate Lines out of the ground to meet the main lines out of St. Pancras. The line then climbs gently to Kentish Town.

 

[heart-of-wessex]

31's still cleared through there? How about a charter with a pair of 31's at night through this section

 

[westcoaster]

31's still cleared through there? How about a charter with a pair of 31's at night through this section

And 73's are still cleared as well, a couple have been through lately.

 

[ChiefPlanner]

Locomotives need an isolation - was 33 , 31 and 73 only. Not exactly easy , am afraid - particularly with Section 12 requirements for St Pancras , City - and indeed Farringdon. Pairs of LUL battery locomotives front and rear would do the job.