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Post by norbitonflyer on Sept 20, 2018 10:01:34 GMT
Presumably the driver can turn it off before the automatic 15-minute cutoff kicks in.
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Deleted
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Post by Deleted on Sept 20, 2018 19:14:23 GMT
Yes you can shut down all engines for the cab of a network turbo down. If the unit has a short turn around time
like the stoppers to High Wycome it's not worth it as the unit could loose two much air and there would be a delay start.
And I think Westminster council monitor either the noise or air pollution so they don't want the drivers to the compressor speed up switch
to build up air fast
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Post by AndrewPSSP on Sept 20, 2018 21:26:24 GMT
Strangely the start up noise reminds me of an original Routemaster bus being fired up, however once the diesel engines are running, the diesel noise is pretty much drowned out by the traction motor noise. I was hoping that the traction motors would sound more like the D Stock. But it's a good start, and a much better alternative to the D78s all going for scrap. |
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metman
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Post by metman on Sept 21, 2018 22:07:43 GMT
Are motors still LT118s?
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Post by Dstock7080 on Sept 22, 2018 5:43:48 GMT
Only on prototypes 230.001 and 230.002. Production ones are to have AC motors fitted within the D Stock bogies. |
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Post by spsmiler on Oct 4, 2018 10:26:09 GMT
For three days only, everyone is welcome to travel (for free!!!) in the prototype battery electric Class 230 D-Train. 10th - 12th October 2018.
But, the train is being tested on a heritage railway in Scotland.
Simon
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Ben
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Post by Ben on Oct 4, 2018 13:29:19 GMT
If twenty years ago you'd said the humble D stock would be popping up all over the country running sans juice rails...
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Post by Deleted on Oct 4, 2018 18:23:49 GMT
Bet it never made it there on one charge
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Post by alpinejohn on Oct 4, 2018 19:14:37 GMT
Bet it never made it there on one charge
Absolutely - Allelys Heavy Haulage did the honours. I suspect common sense prevailed on this move. Network Rail would have laughed at any suggestion of finding a mainline path for the two car unit with limited range/speed plus of course somehow transporting the containerised recharging unit which VivaRail had designed
As it is, the visit to Bowness looks like it is the first phase of the battery train roadshow that VivaRail announced a while back.
I wonder where the unit will be heading for afterwards?
It would be great to see it being tested on the Greenford Branch shuttle which seems an ideal short, self contained route with relaxed speeds and loadings which would be well suited to the battery variant of the Class 230's. I suspect that any public test runs of the battery train in or near Greater London would get a much bigger turn out than it will in Scotland. |
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Chris M
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Post by Chris M on Oct 4, 2018 21:02:16 GMT
So better to start with lighter loadings to iron out any kinks
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Post by Dstock7080 on Oct 4, 2018 21:03:30 GMT
Class 230 first run at Bo’ness
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brigham
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Post by brigham on Oct 5, 2018 7:38:31 GMT
"Network Rail are proud to announce that we are no longer able to transport railway carriages by rail..."
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Post by alpinejohn on Oct 5, 2018 7:43:25 GMT
When pulling away the battery train sounds a lot louder than I ever remember D stock units. I never expected a battery to make extra noise.
I guess it could be down to the microphone quality on the latest recording but it is interesting to compare noise levels on the above video with an original running on the District at 30 seconds+ on this video..
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Post by humbug on Oct 5, 2018 8:19:22 GMT
Having volunteered on the SRPS 30 years ago (rebuilding steam locos mostly), I can recommend people a visit to Bo'ness- it's a good day out.
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metman
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Post by metman on Oct 6, 2018 9:04:53 GMT
When pulling away the battery train sounds a lot louder than I ever remember D stock units. I never expected a battery to make extra noise. I guess it could be down to the microphone quality on the latest recording but it is interesting to compare noise levels on the above video with an original running on the District at 30 seconds+ on this video.. Might be the transistors or something of that nature making the sound? |
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Deleted
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Post by Deleted on Oct 6, 2018 12:45:40 GMT
I am surprised they kept the couplers on the front. Unless they have adaptors made up, a tow out would be hard if ever required.
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Post by spsmiler on Oct 12, 2018 14:57:16 GMT
Some photos of the D-Train at the Bo'ness Railway can be found at the Vivarail twitter feed. I was not there (alas) so none of these were taken by me. twitter.com/vivarail |
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Post by christopher125 on Oct 15, 2018 21:53:33 GMT
Onboard footage:
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Post by norbitonflyer on Oct 15, 2018 22:05:06 GMT
I hope they'll be able to fix that high pitched whine - even 30 seconds of it on the video gave me a headache!
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Post by alpinejohn on Oct 16, 2018 11:33:55 GMT
I hope they'll be able to fix that high pitched whine - even 30 seconds of it on the video gave me a headache! I agree. I fear that if VivaRail cannot reduce or eliminate that high pitched whine, then it may well be a real turn off for potential buyers. It seems the noise pretty much disappeared once the train was accelerating hard, and indeed it briefly sounded pretty much like I recall D Stock on the District. Unfortunately the severe whining noise returned when it slowed down again - so I assume it is some sort electrical component which is causing it, and hopefully a component they can replace with a quieter and cheaper alternative. During the trip one of the staff decided to briefly lower the window on the inter car door and that immediately confirmed the noise was even louder outside. So whilst the battery train may be popular for sparing neighbours some diesel fumes, if the battery trains continue making that racket then they are hardly going to get a reputation as a good neighbour. |
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Post by stapler on Oct 16, 2018 13:38:31 GMT
Reminiscent of the internal whines on the 92TS; faulty fans in the ventilation system. I haven't noticed it recently - perhaps a quiter comonent has been found.
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Chris M
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Post by Chris M on Oct 16, 2018 14:58:06 GMT
One saving grace for neighbours is that high pitch sounds travel less far, and are reduced to a greater extent by vegetation, than lower pitch sounds of the same volume.
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Post by crusty54 on Oct 16, 2018 20:41:21 GMT
Having seen, heard and travelled on the battery demonstrator at Rail Live I was not aware of any high pitched sounds.
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rincew1nd
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Post by rincew1nd on Oct 16, 2018 21:42:23 GMT
Having seen, heard and travelled on the battery demonstrator at Rail Live I was not aware of any high pitched sounds. Can you hear those high-pitched noise-makers they have outside an off-licence which only young people can hear?  |
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Post by norbitonflyer on Oct 17, 2018 6:49:02 GMT
It's possible the sound recording on that video makes the noise sound worse than it does in real life, but alpinejohn's account suggests it is clearly audible in and around the train. And I don't think I count as "young" - I can remember steam traction on British Railways.
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Deleted
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Post by Deleted on Oct 17, 2018 14:38:52 GMT
I hope they'll be able to fix that high pitched whine - even 30 seconds of it on the video gave me a headache! I agree. I fear that if VivaRail cannot reduce or eliminate that high pitched whine, then it may well be a real turn off for potential buyers. It seems the noise pretty much disappeared once the train was accelerating hard, and indeed it briefly sounded pretty much like I recall D Stock on the District. Unfortunately the severe whining noise returned when it slowed down again - so I assume it is some sort electrical component which is causing it, and hopefully a component they can replace with a quieter and cheaper alternative. During the trip one of the staff decided to briefly lower the window on the inter car door and that immediately confirmed the noise was even louder outside. So whilst the battery train may be popular for sparing neighbours some diesel fumes, if the battery trains continue making that racket then they are hardly going to get a reputation as a good neighbour. I know that all production D Trains will have new motors, not sure if this has kept the old D stock motors or not. The high pitch noise would be down to the method of controlling the speed of the motors. It is of course possible to reduce the noise made, but its all about the type of traction package being used, vs the motors. |
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metman
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Post by metman on Oct 17, 2018 18:30:50 GMT
It sounds like the old LT118 motors to me?
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Post by Deleted on Oct 17, 2018 18:45:50 GMT
It sounds like the old LT118 motors to me? To be honest, I gave up watching it. The whinning as well as the way the camera was just left awkwardly recording people made it way to awkward to continue watching |
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Post by 100andthirty on Oct 17, 2018 18:45:56 GMT
Metman et al.....The typical sound of D stock is a mixture of motor and gear noise. I don't know if the replacement of the motors has led to replacement gears but if not, that will be the reason for some of the familiar noises being heard.
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brigham
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Post by brigham on Oct 18, 2018 7:45:20 GMT
The sound of straight-cut gears is the iconic sound of electric traction.
This is because everything else is so quiet.
We've seemingly discovered a new sort of electricity, which gives out noise of its own. Future generations will doubtless come to associate electric transport with the howl of the over-size signal generators powering the motors.
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