How fast does the victoria line trains go?

I doubt they get up to much more than 35mph because of the distance between the stations, I believe the line is only 13 miles in length, and it takes just over half an hour to make the 16 stops. Hopefully a t/op can help?

Yeah sorry, misstype. Someone was talking to me about 20Q at the time and I just typed it in Modified OP

35mph?

The station stop speed code areas can go all the way up to 55mph, with 5.5KHz! 3.5KHz is normally just before the entrance to a platform...

FPK-SVS is a very long stretch and would most certainly get a high speed up!

Top speed of the old trains is, off the top of my head, 48mph. I'd give or take an mph on that. Any faster and they get tripped as that's the fastest a 420 code allows. They won't always get there of course on a short inter station run like Vauhall to Pimlico.

New trains are very similar but they hit top speed more often thanks to more modern traction as well as having more motored axles.

The brake spots do start at higher speeds as Charlie J says but they essentially have no effect (I believe - someone else can confirm) until they start 'asking' for speeds which are lower than the train is currently travelling. In any case, they aren't the primary system for stopping trains at stations nowadays.

Again, off they top of my head, the top 'target' speed for the ATO is 80kmh which is pretty much the same as 50mph. The ATP won't intervine until a bit above that though.

They mostly drive between 79 and 80kph when at 'top speed'.

I was always taught 47mph, but it's been a few years since I regularly worked on the Victoria Line.

Original line speed was higher and the 420 code doesn't have an upper limit; it is just maximum speed. There are some signal overlaps in the Seven Sisters area which are calculated for 58mph.

Brake spots for platforms have no effect until the train is going faster than the setting of the brake spot, but they are still used. The theory is that the train picks up the first few spots, the Auto Driver Box then picks up from the known wheel diameter and the positioning of the spots where it is and then locks into an ADB-generated braking profile. If, however, that doesn't happen the train will continue to brake using all the spots as speed reference markers.

There are two speed checking systems on the 67TS system. One is the Mechanical Governor (for safety back-up), the other is the Electronic Governor for normal control. From memory, I think that the mechanical governor originally had a setting of 50mph for the top speed limit but this was too close to the electronic governor limit of 47.5mph and there were some problems with it in the early days. That's why the mechanical governor limit was increased to I think 52.5mph at some time and, some official documents suggest its now 57mph.

Perhaps someone could confirm the actual speeds.

In normal operation only the Electronic Governor controls the train. At 46mph a coast command is called and at 47.5mph a minimum brake is called for so the train should never go above this speed.

If anyone wants to read about how the original Vic Line ATO system actually works, I have posted a couple of my articles here:
www.tubeprune.com/UN article on train equipment 34 Automatic Trains.pdf
www.tubeprune.com/UN article on train equipment 35 ATO Safety on the Vic Line.pdf
In these articles, I have assumed a nominal 50mph as the top speed.