Does the 96 stock have regenitve brakes

Limited to rheostatic brakes at the moment. Regenerative braking is a weekend or two away, just got to dot the i's and cross the t's as regards assurance and then do the software change (to traction software version 6). It was tested on Sunday 3rd July to great success I understand.

Not sure when the new timetable starts now, think it has been delayed while arrangements are put in place to ensure sufficient trains are available for the service.

Regards,

Dan

Version 6 is basically the current 96TS full performance with regenerative braking enabled. Version 7 is the enhanced performance plus regen braking, which will come at a later date. Enhanced performance is higher acceleration rate when empty plus a longer period of acceleration at the existing rate when full, but I would have to check that to be certain. Basically the trains can get back to the central core much faster i.e. when carrying less passengers.

Afraid I don't know enough about 92TS to compare.

Regards,

Dan

I wonder if the track can handle all that speed, should be fun flying over all the block joints on the old section ;D

They may have all axels motorised, but, the 96 stock with its more advanced technology may make up for that.

It appears to me that more time could be gained through faster station approaches and remodelling junctions to eliminate low speed restrictions. I. E exit from Stanmore limited to 15mph over the points from platform 2 southbound. I like the fact that at Leytonstone on the Central line, trains starting from the Hainault platform towards London can accelerate to full line speed and traverse the junction onto the main running line without slowing down. Also there are issues when trains run too close to one another. I was on Central line Sun evening and we were constantly bring checked/ brought to a halt between stations due to the preceding train in front! It will be interesting to see how the jubillee line fares with it's more intensive timetable!

Its going to be pritty annoying if the trains are stop starting all the time and i guess it will be more on off motion as the train tries to keep to target speed?

Sun I travelled from Stratford to Central London, so mainly tunnel!

IIRC, an official figure of four minutes was given.

Really the 12-13 minutes reduction in journey times us unrelaistic yes journey times will be cut compared due to ATO operation. But if the train is very busy and is stop start that is quite a few minutes wasted. When the new timetable comes speed and prefomance should inprove greatly.

If the current Jubilee timetable has as much slack in it as the District one does then getting rid of that would significantly help towards the claimed end-to-end journey time improvement

Average dwell time on my last trip was 30 seconds, so if this could be cut by - say 10 seconds - on average - then you could cut the end to end journey time by 4 mins. Prob 2 mins from each extremity into central London. Plus I don't think we ran flat out by any means. Judging by pitch of the motors , 50 mph only used between bermondsey and London bridge. And then again from neasden to wembley park and then on the sections north of wembley park. Quite slow running from baker street to neasden although very short distances noted between some stations. Does anyone know what the line speed profile will be for the new timetable?

The line speed will not change, what will change is the ability to reach that line speed based on the safety distance to the train in front.

Regards,

Dan

I think several issues are being rolled together here. The main performance upgrade is already on the trains; the further tweaks are for full regen capability and a further small tweak to performance. The new TT at the end of July should reduce run times by around 6% (as it was originally written expecting a PM service) and the next TT in March a further 6% ish. I have a copy of WTT11 at work. I will post the end to end comparisons when I get a mo.

Now the new timetable is in use are all trains now going flat out between stations? Well St Johns wood to Baker street the other day was very on off power all of the time. I know i have asked this question before but is there any infomation on when PM is Used?