Gradient profiles of Heritage Railways - List in Post 1

I can offer you a map of the branch but not the gradient profile.

Happy to draw one if someone has the data.

Robin

 

Klaus Marx' book gives the following description:

"Railway No. 3 left Horsted Keynes on a curve of 32 chains radius, gently falling southwest at 1 in 500 for half a mile to cross a tributary of Cockchaise Brook and New Lane. This was achieved at one stroke by building the 117yd six-arch Sheriff Mill Viaduct [...] The line crossed [Cockchaise Brook] and fell at 1 in 70 to a level which allowed for a possible station at Lywood [...]. It then rose at 1 in 132 towards the 216yd Lywood Tunnel. [...] Leaving the tunnel the grade changed to fall at 1 in 100 through the land of William Dixon, past Great Lywood Farm and under its occupation bridge on a section of light embankment. [More description of farms, but no notes of change of gradient until ...] at the east end of which the platforms at Ardingly station commenced.

The level section through the station continued until the Ouse was crossed just beyond the limits of the goods yard headshunt. The line then rose at 1 in 70, 109 and 70 again onto a 32-chain, left-hand curve past the Rivers Farm [...] to gain the main line at Copyhold Junction."
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Unfortunately the same source doesn't give distances, except to note that Ardingly is 1 mile from Copyhold Junction, and Horsted Keynes is 3m4ch.

Make of that what you will!

Tom