It becomes irrelevant though if the system Bombardier come up with allows switching mode on the go.
London - Bedford is around 50 miles I think?
-
Our new ticketing site is now live! Using either this or the original site (both powered by TrainSplit) helps support the running of the forum with every ticket purchase! Find out more and ask any questions/give us feedback in this thread!
Bombardier EDMU
- Thread starter YorkshireBear
- Start date
- Status
It becomes irrelevant though if the system Bombardier come up with allows switching mode on the go.
London - Bedford is around 50 miles I think?
Sponsor Post - registered members do not see these adverts; click here to register, or click here to log in
R
RailUK Forums
asylumxl
Established Member
And trains stop at Luton Airport Parkway and Luton and Bedford in those 50 or so miles.
tbtc
Veteran Member
Doncaster - Wakefield Westgate - Leeds (token service)
Doncaster - York (as previously mentioned)
Crossforth
Established Member
Unfortunately that is a HST service so wouldn't change
I would have thought they will stay the same. Whilst there are no longer hard and fast rules regarding numbering sequences (if there ever were
) 2xx sequence is for Diesel-Electric trains which the 22xs would remain.All MML platforms at STP are wired, and they are at Bedford to. The distance is just short of 50 miles (49m53ch)
tbtc
Veteran Member
It is at the moment, but you just specified EMT services, not just 222s
So that is a minimum of say 200 miles per diagram per day under the wires which could in theory be removed. Call it 20 (Meridan) diagrams - 4000 miles per day under the wires.
It certainly adds up.
MCR247
Established Member
- Joined
- 7 Nov 2008
- Messages
- 10,290
If it can't be done on the move, won't pax be unhappy to have their Journey times made around 5 minutes longer? Also I'm not sure FCC will be happy if every EMT train calls at Bedford...
It needs to be done on the move or it isn't viable for the Meridans in my opinion.
asylumxl
Established Member
5 minutes!? OMG WHAT AN OUTRAGE!
Bastiaan
Member
Why should the train stop to switch from overhead to diesel? Isn't it just a matter of turning the diesel engines on and putting the pantograph down? That can also be done while running. Or am I thinking too far out of the box now?
Because current trains can't switch from 3rd rail to overheard without a total reboot whilst stopped.
It can be done of course - just not with existing new stock.
westcoaster
Established Member
not 100% correct the wires on the up and down fast stop a good 100m meters south of the platforms (although a 319 has ended up in the down fast platform at bedford
)--- old post above --- --- new post below ---
again not 100 % true older units can go from dc to ac with no trouble at all.
--- old post above --- --- new post below ---
dropping the pan on the move is ok but only in certain situations, never put the pan up on the move otherwise you will bring it straight back down again, although i think euro* used to do it on the move.
Bastiaan
Member
Who says it isn't possible? Some have said adding a pantograph car to a Voyager also wouldn't be possible. Let's just see what Bombardier comes up with
YorkshireBear
Established Member
- Joined
- 23 Jul 2010
- Messages
- 9,664
Well it's been said the government want MML electrification for this very reason the 222's can be converted cheaply(relatively), build all the panto's in one go to make it cheaper and then transfer to 222's steadily as electrifcation increases. Surely as soon as it goes to leicster you can convert all as all stop there so.... NR have been asked to do a study for corby first. They want to be seen to be green without doing GWML as that would cost more with infrastrucutre and stock.
You never know this in my eyes looks like quite a nice proposition for government to take up, they need green credntials in the modern world.
You never know this in my eyes looks like quite a nice proposition for government to take up, they need green credntials in the modern world.
Bastiaan
Member
I'm 100% sure they did. Here's proof! (From 1m 25s)
350/1s certainly can do it on the move - just not permitted.
cyclebytrain
Member
- Joined
- 11 Jul 2009
- Messages
- 311
395s switch from overhead to third rail (and vice versa) whilst moving every day.
tbtc
Veteran Member
...same with the half hourly Voyagers from Birmingham to Manchester, the half hourly Voyagers from York to Newcastle, the "non Chester" Virgin services...
I thought they changed whilst stationary at Ashford and Ebbsfleet?
I didn't say otherwise.
Maybe I was ambiguous. SOME current stock which has been built within the last 5-10 years can not do it without shutting down and a reboot.
The POINT I was making is that the system needs designing so that it CAN be done. I didn't say it couldn't be done.
route:oxford
Established Member
- Joined
- 1 Nov 2008
- Messages
- 4,949
I do wonder if the £300M bill would be subject to a hefty discount if the jigs were going to be put to more extensive use...
Would be handy if an "off-the-shelf" HST replacement could operate as far as Reading on the cross-rail infrastructure and actually make use of the knitting. Timing would be about right too.
What happens with the Diesel engines when the unit is running under the wires? Are they kept warm with heaters? Or just as efficient to keep a few running in a cycle to supply "hotel" power?
Would be handy if an "off-the-shelf" HST replacement could operate as far as Reading on the cross-rail infrastructure and actually make use of the knitting. Timing would be about right too.
What happens with the Diesel engines when the unit is running under the wires? Are they kept warm with heaters? Or just as efficient to keep a few running in a cycle to supply "hotel" power?
asylumxl
Established Member
In support of ukrob's post above, I'm pretty sure (though I may be totally wrong) that the Electrostars have to stop in order to switch over, and I'd imagine that if the 22x class used the same train management system, they too would have to stop.
You're entirely correct - they often break completely during the changeover too. Another example of high quality Derby engineering.
asylumxl
Established Member
At Farringdon. Always when I want to go home... :-x
High Speed One has much higher tension in the wires than the rest of the domestic OHLE so tends to be a bit of a special case. I seem to recall someone on here (might have been OT or OLL) saying that if you raised the panto on the move it would quite possibly cause a de-wirement on most OHLE.
Have to say once again that the idea is excellent. If both manufacturer and operator want it, then they should get the new vehicles built and the conversions done as soon as possible. Still, you have to wonder what took them so long.
cyclebytrain
Member
- Joined
- 11 Jul 2009
- Messages
- 311
There are peak services that don't stop at Ebbsfleet that change whilst moving (and from personal experience it really is whilst moving, not a stop without opening the doors)
Install a short section of higher tension wire in the change-over zone?
- Status