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| RHTT train speeds 12/10/2011 at 02:02 #21683 | |
UKTrainMan
1803 posts |
As I'm sure many of you will know, it's the dreaded leaves on the line season again. I'm also sure many of you will know that Network Rail run RHTT trains to tackle the problem. I've got an RHTT train downloaded for the train driving simulation BVE4 which is hauled by a Class 57 (57008) and whilst driving it recently I was left wondering about any specific speed limits for RHTT trains. Obviously they wouldn't exceed the line speed limit, but are there any specific speed limits for RHTT trains in general, or would they just go as fast as they can (perhaps within reason)? Just wondering really. As usual, reply/ies appreciated, thanks in advance. Any views and / or opinions expressed by myself are from me personally and do not represent those of any company I either work for or am a consultant for. Last edited: 12/10/2011 at 02:03 by UKTrainMan Log in to reply |
| Re: RHTT train speeds 12/10/2011 at 02:31 #21684 | |
jc92
3687 posts |
i beleive 60 mph is the top for RHTTs in order to get a good spread of sandite. we did have an issue with class 66s over the barnsley branch limited to 40, but this was more specifically due to weight and gauging restrictions. so 60mph
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| Re: RHTT train speeds 12/10/2011 at 07:59 #21689 | |
58050
2659 posts |
A few years back I rode on a RHTT train over the Wembley suburban network & the WCML between Euston & Bletchley. The train was formed of 2 brand new Cl.66/4s & 2 tanks wagons on freightliner flats. Whilst the train is moving between the sections it is programmed to 'wash' if you like the train moves at 60mph. However whilst spraying is in operation the train was limited to 20mph. Back in the 1980s I was a secondman on a sandite train working out of Cricklewood along the Midland Mainline. It was a converted DMU trailer car where the guard rode in & operated the sandite spreader & we were on a Cl.31/1. Again that was a similar afair. Whilst transiting between the points where sandite was programmed to be dropped we ran at 60mph & whilst dropping the mixture we ran at a much reduced speed. When all is aid & done this only had a limited effect, as once half a dozen trains had run over the section of track that had the mixture dropped on it, it wasn't that effective anymore.
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| Re: RHTT train speeds 12/10/2011 at 12:40 #21696 | |
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Noisynoel
989 posts |
A RHTT can lay treatment (Adhesion modifyer) up to 60mph, however, it does not lay this or water jet constantly.It treats specific 'sites' and each site will have it's own treatment spead ranging from 20 - 60mph as well as it's own treatment requirements, AM & waterjet, just AM or just Waterjet. Hope that makes sense. Noisynoel Log in to reply |
| Re: RHTT train speeds 14/10/2011 at 14:33 #21770 | |
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GB
64 posts |
It should also be noted 20mph is the minimum speed required for water jetting before you start getting into the realms of track damage.
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| Re: RHTT train speeds 18/10/2011 at 12:45 #21850 | |
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UKTrainMan
1803 posts |
Thanks again for the replies to this. I've been having fun driving it lately and earlier today I substituted the 05:12 Maybank - Brookfield Yard Class 66 hauled Freightliner (A Class 6 train - oh noes, thats the third six...666 = :evil: ) on NWM with the Rail Head Treatment Train. Deliberately left the loop(?) at Maybank at under 20mph but was crossing the pointwork at 20mph and varied my speed in certain sections. Approaching Whitminster I had to reduce speed due to being checked then decided to proceed through Whitminster station and up to the tunnel at around 30mph, then 40mph over the junction, then sped up again until dropping back down to 40mph for the section through Riverside. In sections further on if there a lot of trees beside the line I would again travel at a lower speed, perhaps around 45mph. Beyond the junction before Nuthurst I sped up again and proceeded at around 60mph towards Norton. Then, approaching the signals at Norton, some red flashing thing :whistle: kicked in. Anyway, here's a screenshot I took the other day whilst driving the RHTT on a ficitional route called 'Binley Heath' http://twitpic.com/7259eo Any views and / or opinions expressed by myself are from me personally and do not represent those of any company I either work for or am a consultant for. Last edited: 18/10/2011 at 12:48 by UKTrainMan Log in to reply |
| Re: RHTT train speeds 19/10/2011 at 11:48 #21862 | |
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Joe_T
56 posts |
Where did you get said train from UKTrainMan?
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| Re: RHTT train speeds 19/10/2011 at 16:28 #21865 | |
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UKTrainMan
1803 posts |
Believe it was from BVE Routes & Trains which, like many other sites :angry: such as Trainsimcentral, seem to have gone kaput. 
Any views and / or opinions expressed by myself are from me personally and do not represent those of any company I either work for or am a consultant for. Log in to reply |