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'Light' engine HST

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hexagon789

hexagon789

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Deepgreen said:
I've seen a photo on 'Flickr' of a single HST power car running light from Heaton to Bounds Green. The shot shows it passing Arlesey. I can see no form of tail light whatsoever - what is the rule for this (exemption)?

https://flic.kr/p/2hD7Qku
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That's intriguing, the ones I've seen of FGW/GWR running light all seemed to have a tail lamp. Same for BR InterCity days.
 
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Llama

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It's a bardic lamp showing a red, one of those new grey plastic rubbish ones.
 
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Deepgreen

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Quite right - I've seen another view on Flickr now, and it is a lamp. I was convinced it was a socket cover from the first shot. Stand down everyone (thanks)!
 
Llanigraham

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GrimShady said:
Very interesting. There was a discussion recently on the ScotRail HST thread about not being able to use the PC can space. This just shows the reasons given are utter tosh.
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The Cornish situation was an emergency one so does not make it "utter tosh". As it says the train only travelled at 5mph to evacuate the few passengers.
 
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The shot of emerging passengers looks rather like the 'how many people can fit in a mini' stuff! The catering trolley must have had difficulties.

'This train is formed of 0 coaches'.
 
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heedfan

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a_c_skinner said:
Blimey, how much space is there? Serious Q.
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Not a great deal. Maybe 3m x 4m. There are fire bottles, emergency cupboards, regulator's etc that can fill that space up depending on the configuration. It obviously can also be very noisy.
 
43096

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heedfan said:
Not a great deal. Maybe 3m x 4m. There are fire bottles, emergency cupboards, regulator's etc that can fill that space up depending on the configuration. It obviously can also be very noisy.
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Although a big chunk of that (Inergen fire bottles, OTMR etc) wasn’t fitted back then.
 
GrimShady

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Llanigraham said:
The Cornish situation was an emergency one so does not make it "utter tosh". As it says the train only travelled at 5mph to evacuate the few passengers.
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So they risked gassing everyone Vs a difficult detraining?

Sounds like utter tosh to me.
 
GrimShady

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TractiveEffort said:
Why would travelling in the back of a power car risk gassing anyone?
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This was the reason given for not using the PC van space on ScotRail HST. In the event of an engine compartment fire the extinguishing gases would leak in to the van space.
 
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scotraildriver

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GrimShady said:
So they risked gassing everyone Vs a difficult detraining?

Sounds like utter tosh to me.
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The Inergen fire system that is causing Scotail issues wasn't fitted back then. It is a relatively recent addition to the power cars.
 
43096

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scotraildriver said:
The Inergen fire system that is causing Scotail issues wasn't fitted back then. It is a relatively recent addition to the power cars.
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Why is it an issue? I am not understanding why ScotRail have an issue with it when no-one else does. Is it rather symptomatic of ScotRail's inability to understand HSTs and consequently their chronic inability to get them into traffic.
 
43096

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GrimShady said:
What were they using? CO2 or nothing?
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It was a Halon based system, which can no longer be used as (I think) it is an ozone depleting gas. The opportunity was taken when fitting Inergen to have the system cover the clean air compartment as well as the engine room.
 
GrimShady

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43096 said:
It was a Halon based system, which can no longer be used as (I think) it is an ozone depleting gas. The opportunity was taken when fitting Inergen to have the system cover the clean air compartment as well as the engine room.
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Thanks for the reply. HALON was banned many years ago for the reason you stated.
 
Llanigraham

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GrimShady said:
So they risked gassing everyone Vs a difficult detraining?

Sounds like utter tosh to me.
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It quite obviously wasn't "utter tosh" since we have photographic evidence of not only the passengers IN the unit but also getting off and into private cars soon after.
 
43096

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hexagon789 said:
It may have changed now, but it used to be that it could still be used where already existing but no new Halton systems could be put in.
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That certainly was the case when Inergen was installed - they couldn't re-fill the old system if it was discharged, which forced them down the route of a replacement system. The gas used in Inergen is much less efficient than Halon-based extinguishants, which is why the three big red tanks in the van appeared.
 
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