top speed of all stocks

Istr that a 1938 stock on a railtour (I was on it but can't remember its name without looking up my old tickets) achieved just over 80 mph coming down from Amersham and suddenly developed quite noticeable wheel flats after coming to a fairly rapid stop afterwards. Anyone remind/correct me ?

I think it was late 70's or early 80's. Will try and find details later.

I'm not sure what the policy on speeding is on LU but on national rail it doesn't happen any more!

What's the speed limit on the W&C? I'm guessing that there isn't the opportunity to get those trains up to 85km/h?

C stock are limited to 40mph

Speed guns are used on LU and disciplinary action does ensue for anyone caught speeding.

"Allegedly" being the operative word.

Although this was also printed in a rail magazine I gather the sole basis for the claim was a mobile phone app. Now I have such an app on my iphone and I've found that compared to my cars & buses it becomes less accurate the faster you go - in other words, I wouldn't believe everything you read.

Furthermore, as I stated previously, drivers do face disciplinary action when caught breaking speed limits - those limits are not targets but almost always exist for safety reasons (ie to prevent derailments).

Final word, which doubles as an admin comment: given that speeding is a disciplinary offence, this forum officially disassociates itself with any claims of speed limits being broken on London Underground infrastructure.

My goodness, talk about big brother

O & P Stock didn't have speedos. I also don't recall '38s on the Northern in 1986/7 having them, even after the EHO Programme.

The first District Stock was R Stock but then only a rudimentary device!
It consisted of a glass tube filled with green liquid which would ride up the tube as the speed increased. The device was back lit and the luminance could be adjusted with a thumbwheel.

I remember on the R Stock Railtour watching the liquid rise up the tube in the rear cab while running SB from Moor Park, only to see it spewing out of the top of the (by then) broken tube when the speed had increased sufficiently!!

Know colloquially (by some) as: 'Fairy Liquid Warp Speed Indicators'!

I don't understand - what do you mean ?

When I said about using speed limits as targets, I meant in the sense that speed limits shouldn't be seen as a just a rough guide and drivers shouldn't have the attitude of "it says 35 but I think 42 is ok and that's close enough to 35".

The speed limit is the maximum speed allowed and so its better to view it as that rather than just a target.

Whilst I'm mindful of the target speed terminology used in ATO (Automatic Train Operation), I feel its best to absolutely clear about what is meant by target speed in ATO - which is the ATO equivilent of a speed limit - and treating speed limits on manually driven lines as just a target rather than the actual maximum.

I hope that makes sense!