Could Parry People Movers Replace The Class 153s?
On the Stourbridge Town Branch Line, Parry People Movers or Class 139 trains, have replaced a Class 153 train on the short route.
As there are seventy of the Class 153s, how many of these could be replaced by the smaller Class 139s.
I feel that a line like the Felixstowe branch could probably just be covered adequately, by two Class 139s working together. They would start simultaneously at Ipswich and Felixstowe, every thirty minutes. The current Class 153 is scheduled to take twenty-six minutes, which means it would be tight and would probably need a train with a bit higher performance than the current Class 139.
But if you look at this line in a few years, it is likely that it will be electrified for freight reasons and I suspect that passenger trains on the branch will be reorganised and run by a suitable electric train. I do wonder if the Ipswich Cambridge line were to be electrified and given an increased service frequency, that some of these trains should be extended to Felixstowe or Harwich. Extra stations might also be added on the Felixstowe line to both serve the port and new housing developments. The area has lived on scraps and hand-me-down trains for years, but now that the Beccles Loop and the Bacon Factory Curve have been built, the trains are at last generating traffic and running more frequently and reliably.
Looking at where the seventy single coach Class 153 trains are used, quite a few are used on lines a lot longer than the Felixstowe branch. When I took a trip around Wiltshire, a lot of the journey was in a Class 153, but probably the route is too long, fast and busy for the smaller Class 139.
So I would think that some Class 153s and possibly some Class 150s or 156s might be able to be replaced on services by Class 139s or a bigger version, but not many. A specialist version with lots of space for bicycles, wheelchairs and luggage might also have applications in tourist areas like the St. Ives branch.
Another likely source of replacement is some new Class 172s. This has been hinted at by a rail minister and we do have a General Election coming up. If money was no object, all of those rural lines that will probably never be electrified like those in the North of Scotland, Lincolnshire, East Anglia, Wales and the West Country, would be equipped with a new standard train like a Class 172, built to last for the next forty years. Class 172s also have the advantage that they can be lengthened by adding extra coaches in the middle and coupled together to make longer sets. I suspect too, they could also be updated in a decade or so, with an energy-efficient, quieter hybrid power train.
In my view an order for some Class 172s would solve a lot of problems for a long time.
A start has also been made on refurbishing some of the Class 156s and these will probably all be retained for many years. As some of these Class 156s are used on lines that will be electrified, they could be a replacement for Class 153s and 150s, where something better and/or bigger is needed.
The Class 15x trains may all be getting on for thirty years old, but many could linger a good few years. Especially, if engineers keep finding ways of updating them, like these new toilets.
So to answer my original question. Parry People Movers or their larger successors might have a place in some places in the UK, but I can’t see too many running in say ten years time, except under special circumstances like Stourbridge, where a high frequency service is needed over a short distance.
Perhaps some might be used on new services, where a small town or attraction needs to be connected to a main line. One place for example might be to link Yeovil Junction to Yeovil Pen Mill and then possibly to the town centre. The track exists between the two stations, which don’t have any connections and are served by totally different companies and services
Projects Are On The Way – W/E 22nd November
This week there have been several projects or investment in UK railways announced.
21st November – Crossrail Work At Shenfield Starts Early – Are they wanting to build Crossrail faster?
21st November – Welsh Valley Lines Go-Ahead Given – This is very much needed.
20th November – Wisbech Reopening Proposed – Nothing concrete yet, but needed if Wisbech is going to develop as a satellite of Silicon Fen
19th November – Electrostars For Gatwick Express – Something like this was expected and Derby will be pleased.
18th November – Crossrail Accessibility Boost – Probably best done before opening
It will be interesting to see how many get announced each week, as we build up to the General Election.
Using The Strange Property Of Water To Advantage
Most people, except perhaps those, who live in hot climates, know from their personal experience that ice floats on water. But most people don’t know that water is at its densest at 4°C. So water at this temperature sinks, but it rises at all others.
I once heard somebody use the existence of this property as a reason why God exists. He argued that if it didn’t, then life would have been impossible in water. It was all a bit contrived, but it is still as a strange property.
This morning, I was listening to Wake Up To Money, when a company called SureChill was mentioned. So I looked them up and found that they are using this property to create a new type of refrigerator. This page explains it all. This section describes the solution.
Sure Chill is a brand new kind of cooling system. It doesn’t need a constant power source. In an on-grid situation with intermittent power, it works perfectly well. In an off-grid situation, where a solar panel may be used, a Sure Chill powered refrigerator doesn’t even need a rechargeable battery. It shouldn’t work but it does. And it works beautifully.
Water surrounds a Sure Chill refrigeration compartment. When it has power, the water cools and forms ice above the compartment leaving only water at four degrees cooling the contents. When the power is switched off, the water warms and rises while the ice begins to melt, keeping only four-degree water cooling the contents of the compartment. So it has its own internal and entirely natural energy store that maintains a completely steady temperature. The system can operate like this, without power, for days and weeks.
People think physics is boring. Outside of Metier, I’ve done well in my career and made quite a bit of money by understanding the laws of physics that govern our lives.
My surprise at this idea, is that the technique could have been implemented in a refrigeration system decades ago. Artificial refrigeration was first performed by William Cullen in 1755. My bible; Nelkon amd Parker says that the maximum density of water was first measured by Thomas Charles Hope in 1804.
That is a long time from experimental proof to reality!
Dalston Junction To Marylebone In The Rush Hour
Yesterday, I needed to get to Marylebone to go to Birmingham. Some time ago, I wrote about the reverse journey and it wasn’t easy in the rush hour.
So just out of interest, I decided to go by getting the Overground to Whitechapel and then using the District line to get to Embankment for the Bakerloo line to Marylebone.
I left home at 08:44 and arrived at Dalston Junction at 08:52. I left the station five minutes later, after a bit of trouble with the machine buying my return ticket from Marylebone to Stourbridge Town.
I made Whitechapel at 09:10 and at 09:30, I was at Embankment, after a trip on a not-to-busy train.
I’ve avoided Embankment station for some time, as it has been in a state of chaos due to refurbishment, but now look at it.
It was clean and bright and a virtually empty Bakerloo line train got me to Marylebone in a couple of minutes under the hour since I left Dalston Junction. This post on TfL’s web site explains what was done. It says this.
The decision to replace the escalators simultaneously rather than phasing the work meant that it took 43 weeks to complete as opposed to at least 75 weeks. While this work was taking place, LU also took the opportunity to refurbish other parts of the station including retiling corridors and platforms, installing new lighting and replacing station Help Points and CCTV systems.
It certainly looks to be a job well planned and executed.
I think this could become my preferred route to Marylebone and Paddington, until Crossrail goes to Paddington.
Unfortunately, there was a bit of a signalling problem on the Chiltern line and staff got confused about the 09:45 Birmingham train’s departure platform. So I caught the 10:15.
The Anonymous Widower 