GWR Class 800

[Domh245]

I highly doubt that they wouldn't use rheostatic braking if the kit is there. There is nothing that stops the resistors being used whilst the powerpacks are on as the powerpacks merely function to provide power to the electrical traction circuits, so I can't see them not using it. It would also make it easier to setup the braking logic, rather than having to check power mode, receptivity of the OLE, and all the other factors, they can just set it to check the line and divert to resistor banks if necessary. Add in the fact that braking otherwise would involve using the disk brakes (which would wear out) and suddenly it looks like a very daft option

 

[asylumxl]

I highly doubt that they wouldn't use rheostatic braking if the kit is there. There is nothing that stops the resistors being used whilst the powerpacks are on as the powerpacks merely function to provide power to the electrical traction circuits, so I can't see them not using it. It would also make it easier to setup the braking logic, rather than having to check power mode, receptivity of the OLE, and all the other factors, they can just set it to check the line and divert to resistor banks if necessary. Add in the fact that braking otherwise would involve using the disk brakes (which would wear out) and suddenly it looks like a very daft option

The DfT specified the train. Do you expect any different?

 

[Emblematic]

And, now I look again, there's also this:

3.8 Performance
TS261 The IEP Trains must have a maximum service speed of at least 125mph and shall be able to achieve that speed on the whole of the IEP Network. The requirement to be able to operate at 125mph applies during operation in Standard Mode and Locomotive Hauled Mode

That pretty-much rules out braking, as only the air brakes would be available when hauled. In fact the spec. does not mention the service speed for bi-mode, other than that they do not have to reach 125mph. They have to meet the specified journey times, and the maximum sound levels in bi-mode are specified at 100mph (which implies that this is an achievable service speed, but not a maximum.)

 

[BananaRepublic]

The first Class 800 will be out in the wild from tomorrow night, as it begins testing on the ECML.

 

[Noddy]

Any news on when the next set is due to arrive from Japan?

 

[Class377/5]

Any news on when the next set is due to arrive from Japan?

It arrived on Friday.

 

[Y186520]

A photo has been posted on Hitachi twitter page a few hours ago.




Hitachi Rail Europe (@HitachiRailEU) | Twitter
https://twitter.com/hitachiraileu
The latest Tweets from Hitachi Rail Europe (@HitachiRailEU). A rich heritage as a total service provider of railway systems. Manufacturer of the Javelin, the new ...

 

[edwin_m]

You need to have some strategy for dissipate the heat though. Remember that energy cannot be deleted, only converted to a different form or transferred.

Yes you do, and the same laws of physics apply whether on diesel power or on electric power when the line is not receptive.

The resistor grids on the roofs of Voyagers and Meridians do not appear to have any forced cooling, but these are probably dissipating less power than they would have to on a locomotive. If they were underneath somewhere they would probably need fans to provide enough airflow. There's probably a sensor somewhere to trigger a change to disc braking if the resistors get too hot.

 

[asylumxl]

Yes you do, and the same laws of physics apply whether on diesel power or on electric power when the line is not receptive.

The resistor grids on the roofs of Voyagers and Meridians do not appear to have any forced cooling, but these are probably dissipating less power than they would have to on a locomotive. If they were underneath somewhere they would probably need fans to provide enough airflow. There's probably a sensor somewhere to trigger a change to disc braking if the resistors get too hot.

Worth adding that the 22x resistor grids are probably less densely packed than most grids, hence they don't require any forced cooling.

 

[pnepaul]

Apologies if this has been asked already but:

When are we likely to see main line testing for the units?

 

[TheKnightWho]

Apologies if this has been asked already but:

When are we likely to see main line testing for the units?

Tonight, apparently.

 

[ST156]

800001 out for testing on the ECML tonight

 

[Aictos]

Indeed and here are some photos of Class 800001 at Peterborough Station last night > https://www.flickr.com/photos/ajax103/sets/72157652701864742

 

[LexyBoy]

Thanks for the link - exciting to see it out in the wild! I guess they won't visit the GWML until electrification is (mostly) complete?

Having the nose open like that makes me think "OM NOM NOM" though... </lowerthetone>

 

[Class377/5]

Here's another

https://mobile.twitter.com/MRWRail/status/598259046026706944/photo/1

 

[Aictos]

Thanks for the link - exciting to see it out in the wild! I guess they won't visit the GWML until electrification is (mostly) complete?

Having the nose open like that makes me think "OM NOM NOM" though... </lowerthetone>

You're welcome

 

[High Dyke]

Reports suggest that testing passed without incident.

 

[SpacePhoenix]

https://www.youtube.com/watch?v=j5Fs16lPpag

It must have been being going towards wherever they started the test run from

 

[asylumxl]

Looking good so far. Looking forward to seeing videos of one storming along the ECML under its own power.

 

[ExTankieAaron]

On the new Hitachi place in Doncaster will it be of a operator who will run these for example bounds green is to ECML or Virginia now or will it just be Hitachi or even one of the leasing company's like porter brook ??

Thanks .
--- old post above --- --- new post below ---
Sorry for auto corrects on VIRGIN haha

 

[D365]

It's Hitachi who are contracted to provide a minimum number of trains in service each day? Much the same as with the Siemens contract for the Thameslink Class 700 from what I know.

 

[SprinterMan]

Reports suggest that testing passed without incident.

I still find it weird that it was regularly coupled to 47714 during testing. Felt like seeing a vision of the future in which 47714 hauled GEML 801s to Great Yarmouth during the summer :P

 

[SpacePhoenix]

https://www.youtube.com/watch?v=U-bKGnF3F3Q

From about 9:00 onwards, can't see a diesel coupled to it so possibly it's being tested in diesel mode

 

[asylumxl]

https://www.youtube.com/watch?v=U-bKGnF3F3Q

From about 9:00 onwards, can't see a diesel coupled to it so possibly it's being tested in diesel mode

Am I missing something? I didn't see it move, or at least I don't think I did. That was anti-climactic.

 

[WatcherZero]

Variations to base IEP specification for the East Coast IEP revealed in franchise agreement.

Secretary of State ordered variations
Reduction of kitchen on five car sets from 6 meters to 5 meters to add a further 3 first class seats.
Pantograph camera on all sets.
Installation of a speed limiter that limits speed to figure input by the driver (looks to refer to ERTMS functionality).

Other variations
Can switch between Diesel and Electric power modes automatically without requiring an input from the driver.
Standalone Driver Advisory System in future to be upgraded to integrated with the TMS, to improve driver performance.

Under specifications
• Net effect of the removal of one SST (small toilet) and addition of one Bike/Bulk area in 9-car trains
• Blanking of external passenger information screen display near kitchen
• Removal of magazine racks and netting from bay tables and seatbacks (including passive provision for 19" LCD display screen in saloon end partitions in lieu of rack holders)
• Non-fitment of luggage rack in low roof area
• Removal of tint from windscreen

Over specifications
• Cab ceiling lighting variable adjustment
• Cab desk illumination variable adjustment
• Additional cab coat hooks
• Second person work surface and lighting within cab
• Auto brake application when doors released
• Provision of pantograph automatic drop device isolation facility
• Acceleration restriction removal
• Electrical points in bulk storage areas (2 areas per 9-car train)
• Interlocked door functionality in UAT
• Push buttons for kitchen-to-1st class and 1st class-to-standard class doors
• FFCCTV still image download via remote transmission
• CCTV in L1 kitchen (net of no CCTV in staff vestibule)
• Modified design of CCTV cameras in vestibules (location and lens)
• Wi-Fi dual antenna units (rather than single units)
• Substituting four cat 5e cables with two cat 7 cables per run
• Two cat 7 cables from switch to access point in each vehicle rather than two cat 5e (which provides passive provision for Quicksilver)
• Additional sensor for passenger counting system for composite car dividing door
• TMS screen design for additional passenger counting system for composite car
• Additional internal passenger information screen display in composite car
• Push of live seat reservation data and "May be reserved later" capability in seat reservation system
• Staff in passenger areas to be advised of a PA activation by a sound and then scrolling visual notification via passenger information screens
• AED (automatic external defibrillator) space provision (TOC to supply kit)
• Atlas cart storage facility in one electrical cubicle per intermediate vehicle, with associated emergency equipment storage above;
• Staff vestibule area in the vestibule between each L1 kitchen and its associated cab, comprising two seat spaces, fold up tables, power sockets and coat hook;
• Fold-out flap design on all external powered doors on each DPT so as to remove the need for a wedge, thus enabling the safe deployment of wheelchair ramps in a way that prevents the train from being able to drive off with the ramp attached;
• Nappy change table in each SST; and
• At seat power socket provision of:
 First class: dual USB and 13A socket per seat; and
 Standard class: 13A socket per seat
• Atlas cart storage in one 1st Class Bike & Bulk space
• Ability to park the cab windscreen wiper on the left hand side

Level 1 Kitchen Unders
Removal of Panini Grill
Reduction in capacity of chiller from 8 carts to 6 carts
Removal of hot milk steamer

Level 1 Kitchen Overs
Increase cart storage from 6 to 7 in kitchen, 4 additional cart stores on 9car and 1 on 5car sets.
Additional first class trolley storage (1 to 2)
Additional waste bins (2 to 6)
Additional drawers (1 to 3)
Addition of 1 drain sink
Addition of 3 chopping board storage
Addition of 7 electrical sockets

 

[jopsuk]

Good to see one power socket per seat for standard; do wonder how much more including the USB for standard would have been?

 

[D365]

Good to see one power socket per seat for standard; do wonder how much more including the USB for standard would have been?

Don't know why they'd bother when we each always carry a charger and cable The cost shouldn't even be a drop in the ocean, I don't see why they wouldn't fit it from the get-go...

 

[jon0844]

It won't be that long until all people need is USB ports, allowing the charging of phones, watches, tablets AND laptops (the new MacBook being perhaps the first).

If you had the type that can output 5V, 9V and 12V at varying amps (based on what the device itself asks for) then you're pretty much sorted and having two or even more ports would be more useful than someone having to bring a transformer (seems like a waste of space in a bag).

For the short term, people will still carry power adapters but I do think that in time they'll become rendered obsolete. Even homes will hopefully get USB ports fitted within power sockets, and offices the same.

Thus, it seems rather odd to limit the USB ports to first class.

 

[asylumxl]

It won't be that long until all people need is USB ports, allowing the charging of phones, watches, tablets AND laptops (the new MacBook being perhaps the first).

I'd say the Microsoft Surface 3 is the first. It can be charged via its Micro USB port. I appreciate it's a tablet with detachable keyboard, but it is Intel based and runs full Windows so I'd say it's valid.

 

[jon0844]

I'd still class that as a tablet, and I think Apple announced the MacBook slightly before (not entirely sure now).

But, yes, that's another example. I've got a Surface Pro 3, but the Surface 3 is an excellent device for the money.