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  1. TwistedMentat

    3D Printed Train parts

    Yup, that's where the killer feature will be for industry. Especially as the process and costs improve. I could even imagine a point where train owners require the 3D CAD models in case they're needed later and the OEM has left the industry for whatever reason. And as the metal stuff improves I...
  2. TwistedMentat

    Class 345 progress

    Spotted a 345 leaving Reading tonight.
  3. TwistedMentat

    Class 800 electrical interference issues on the Northern ECML

    *ding ding ding* You develop to the spec. If the spec is wrong that is the problem of the spec creator. Not the designer/builder. Now if DfT are lucky the changes needed will be cheap, easy, and fast to do.
  4. TwistedMentat

    Unconfirmed reports of stickers containing razor blades

    Interestingly it is. Even if we ignore the idea of gender as a continuum instead of just male and female. At a genetic level of someone's chromosome level sex there is more than XY and XX. XXY, XXX, XYY, etc. exist and such people may present with sexual organs that don't match up with the...
  5. TwistedMentat

    Unconfirmed reports of stickers containing razor blades

    Welcome to the world of TERFs. Thankfully their only a small subset of feminism/gender equality but my god are they awful people and so very loud. Within the socially liberal circles I hang around TERFs are a pretty dirty word.
  6. TwistedMentat

    Class 701 'Aventra' trains for South Western Railway

    Upfront costs do sound high. But if they actually meet their claims the ongoing costs should be appreciably lower. Not just from being emptied less often but also simplifying train movements so that you don't have to always have it near emptying points as often. I would also want to know what...
  7. TwistedMentat

    Police Scotland to take over British Transport Police in Scotland? [Now on hold]

    Good to see the leaders have listened to the people on the front line. As nice as it would be to just roll up all the policing under one state wide body. For rail it does seem niche and large enough to make it worth having as a separate body. Now if at some point in the future England and Wales...
  8. TwistedMentat

    Class 378 refresh

    I like it. Nice balance of simplicity without being stark and colour without being painful.
  9. TwistedMentat

    Crossrail opening delayed (opening date not yet known)

    What would make me feel better is at least not paying big bucks to leadership when it appears to make no difference how much they're paid and the results.
  10. TwistedMentat

    HST: DMU or LHCS

    Got to side with the locomotive hauled group. The HST clearly wasn't designed to operate in multiple in revenue service so doesn't fall into that grouping to me. Now trains that are designed to couple together and run at full line speed but do not in regular service are still multiple units to...
  11. TwistedMentat

    Birmingham New Street pollution

    So most of the work has already been done. Sweet. Surely such a modification for hotel power levels can't be too difficult. However I don't expect it will change until government puts more regulation in place to force the station operator to meet pollution measurements. Meanwhile the passengers...
  12. TwistedMentat

    Birmingham New Street pollution

    I wonder if it's worth putting up lines and pantographs but only have them used when the train is stopped to provide power. That way you can go with a very simple pantograph and centenary while having a quick win of getting trains to stop their engines. You could even have the power at a lower...
  13. TwistedMentat

    GWR Class 800

    My understanding is that the acceleration under diesel is the same between the 802s and 800s. And that the previous difference was a cap on the engine kW output for the 800s that was upped to the same as the 802s once the realisation of just how little was being electrified was known.
  14. TwistedMentat

    ScotRail HST Introduction - Updates & Discussion

    That's because you borked it. ;) You double pasted the link so it went ..../advancedhttp://www.realtim...... Fixed one here. http://www.realtimetrains.co.uk/train/O30340/2018/08/17/advanced
  15. TwistedMentat

    DRS considering re-engineering Class 68s & 66s

    Yeah. This seems quite sensible forward planning. At some point a future government may remove the grandparented rights and require all traction to meet current pollution regs. By doing the initial leg work now they will be ready for such an eventuality or even when they reach a point of needing...
  16. TwistedMentat

    Class 345 progress

    As a software developer that's roughly how I would have implemented it. Populate from the headcode and long term timetable but use the touchscreen to allow the driver to tweak the stations if needed. And for a custom headcode have the driver fill in the stations. Best of both worlds. For...
  17. TwistedMentat

    Class 345 progress

    Probably more the jump in acceleration from DMUs to EMUs. When they get around to putting in the new timetable I expect they will take advantage of the new performance.
  18. TwistedMentat

    Flying Scotsman aided by diesel traction

    I would think the oil firing is more that it's a hell of a lot easier to get your hands on the amount of oil needed to keep something like the Big Boy moving in the midwest US.
  19. TwistedMentat

    Class 345 progress

    Ah.... Right.... So to translate into something more techie. ATP is like someone modifying 802.11b wifi with some powerful and leaky transceivers while ETCS is the properly to spec 802.11g wifi. They both work in the same frequency band but the old system essentially drowns out the new good...
  20. TwistedMentat

    Class 345 progress

    I'm not a hardware person but how can it be that the two systems would interfere with each other enough? IIRC ATP works off of magnetic fields whilst ETCS is more about data modulated over radio. Yes they both involve electro magnetic fields but from what I understand work in entirely...

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