Hey everyone, this is my first post on the forums so I hope i'm in the right place.
I'm having an issue with trains going up a track gradient. the distance is roughly 70cm long and rises about 10cm, which seems to be
too steep for any of my trains with rolling stock to pull up.
Locomotives by themselves have never had a problem going up and there is no evidence of speed degredation when this happens. However when I attach even a few items of rolling stock, none
of my locomotives are able to get up. they get roughly halfway up and stop with the wheels spinning. Even when I approach the rise at full speed, it is not enough.
the layout is running DCC.
I have an idea of using sandpaper on the tracks to
make it ever so slightly rougher (So therefore more grip... I hope) But its something that I definitely would not do unless someone more experienced can tell me that its okay. the track and the engine wheels have been cleaned multiple times.
hang on a minute, Sadowson, we're talking railways here. 10cm height increase for 70cm horizontal distance is 1 in 7. This is steep for a road. Heavy vehicles are banned etc.
The steepest sections of mainline in Britain are at 1 in 30. One was the old
Folkestone Harbour line where as many as four locos were needed to lift the cross-Channel ferry trains both up and to provide adequate brake vacuum down. The other is at Dainton, South Devon. Put "5043 Earl of Mount Edgcumbe at Dainton Tunnel" into Youtube
and see some REAL fireworks! You have? Impressive, isn't it?
So that is 3cm up in a run of about a metre. You would need a good run at that! Probably a four coach train would be the limit for a loco with NEW traction tyres.
I experimented and
found that for a six coach train about 1 in 75 is the absolute limit! That is why my 8 metre loft layout is all on the level!