kabsonline
Best SSL Train: S Stock Best Tube Train: 92 Stock
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Post by kabsonline on Dec 5, 2011 21:05:41 GMT
Hello again Just found a really interesting video on YouTube so I thought I would share it. Now to add to this I've got a couple of questions and I apologise in advance if they have already been asked but I couldn't see them when I looked. 1) In the video it shows a four car white 1962 stock running the branch. According to Wikipedia the train was specially modified to cope with the lower current on the branch. Now when I watched the first Central Line Drivers Eye View by Video 125, the branch was being run by a red train of some description. What is the story behind this? 2) I read on here before that a 1992 stock made it to North Weald. If this is correct are there any pictures of this anywhere and also had did it make it there on the lower current. 3) I take it that when the 1992 stock was being designed they had already planned the Ongar closure. Or was there a 4 car 1992 stock train produced to run on the Ongar branch? 4) Finally has anybody got any pictures of the booking halls at either Blake Hall, North Weald or Ongar? Interested to see what they looked like. By now you all know I like pictures to look at. Thanks for your help! kabsonline
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Deleted
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Post by Deleted on Dec 5, 2011 21:36:50 GMT
1. The red train was the Cravens Heritage Trains 1960 tube stock with a 1938 tube stock trailer car in the middle, I cant comfirm wether it was modified? 2. Apparently one unit did, cant find photo's though 3. I believe the 1992 tube stock was designed before the planning of the Ongar closure and I think a 4 car unit could be made anyway just my removing the 2 middle units (They are formed of 4, 2 car units). 4. Sorry I dont!
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Post by suncloud on Dec 5, 2011 21:39:00 GMT
In answer to 3) at least The 92ts are in units of two cars each, so a four car train could be formed by marshalling two cabbed units together. Whether this train could then run on the rails as far as Ongar is a question for someone else I'm afraid.
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Deleted
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Post by Deleted on Dec 5, 2011 22:05:06 GMT
I posted some time ago of the 8-car test runs that were made by 1992 Tube Stock back in the summer of 1993 right through to Ongar. Does this thread still exist? - all details (dates and units) were included.
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Deleted
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Post by Deleted on Dec 5, 2011 22:05:57 GMT
There is a photo in "London Underground Rolling Stock" from 1993(?) with a photo of the 1992 tube stock at North Weald.
EDIT: As a full 8 car set I believe, too.
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Deleted
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Post by Deleted on Dec 5, 2011 22:35:58 GMT
Is the photo in 'London Underground Rolling Stock' available to view online?
Off topic but when is the next one due for release? I have the current latest one and its severely out of date!
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Post by norbitonflyer on Dec 5, 2011 23:36:34 GMT
3) I take it that when the 1992 stock was being designed they had already planned the Ongar closure. Or was there a 4 car 1992 stock train produced to run on the Ongar branch? Four-car 1992 stock formations are certainly possible, as demonstrated on the Waterloo & City Line!
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Post by miff on Dec 6, 2011 0:21:22 GMT
I don't believe 1962 stock needed to be modified to work on the Ongar branch. Most central line trains consisted of two '62-stock 4-car units coupled together. However the Ongar service used single 4-car units. Until 1976 two 4-car trains were used during the peaks, passing at North Weald. I think the platforms were too short for 8-car trains.
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Post by redsetter on Dec 6, 2011 2:48:24 GMT
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Post by charleyfarley on Dec 6, 2011 3:20:45 GMT
Perhaps a dumb question, but what was the reason for the restricted electricity supply on the Ongar line? Hypothetically, what would London Underground do if a giant Westfield shopping centre was planned and built at Ongar?
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Post by redsetter on Dec 6, 2011 8:19:43 GMT
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Post by Deleted on Dec 6, 2011 8:21:32 GMT
Power for the branch was single end fed from the substation at Epping. With perhaps a couple of exceptions, the rest of the network is supplied by 630v DC though substations at both ends of a section. Unlike AC current, DC suffers a considerable voltage loss over a long distance. From recollection the distance from Epping Sub Station to Ongar was about 8 miles, which was probably about as far as DC current could reach.
Therefore other than emergencies, the line was restricted to four car units. For most of its later life (70s -80s) the line was mainly served by 62 stock cars working in four car formation. From recollection the Cravens settled on the Ongar line in the last decade or so, after they came of working the Woodford - Hainault shuttles.
There were many plans for the line over the years including one which would have seen the line extended to a new airport proposed to have been built between Ongar and Chelmsford. Obviously the power supply anomaly would have been resolved if that took place. Unfortunately the line suffered from very low patronage and having experimented with reducing costs by removing the passing loop at North Weald, closing Blake Hall, running peak hour only services, trying to attract new trade by reinstating the seven day service and finally returning to peak hour operations, the line failed to attract sufficient traffic or justify its means.
The picture of the 92 at North Weald was featured extensively in LUL publicity at the time. The picture was taken at track level near the public crossing. Not sure who took the picture, but I suspect it was an official photographer.
Somewhere in my collection I still have the network closure poster which was put on whiteboards. I also have a platform ticket bought on the last day. As I was working on the East of the Central Line that day, I spent most of the afternoon at Ongar dealing with what you might loosely call Crowd Control.
On the last week of closure the trains ran full with standing loads.
Dean
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Oracle
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Post by Oracle on Dec 6, 2011 8:51:05 GMT
Didn't the station also get busy after the programme aired about foreign invading animals that featured European Scorpions at Ongar?
I only traversed the line once, as there was a BMW motorcyle dealer, Ongar Motorcycles along the road from the station. I travelled from Hounslow to get there!
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Deleted
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Post by Deleted on Dec 6, 2011 9:35:17 GMT
That was a chap called Fred (cannot recall his second name). He ended up as Revenue Control Inspector at Leyton. He would happily recall the story to anyone who showed an interest. In 1979 he lived near Ongar station and was at the time the Station Foreman. While he was working there, LT announced the decision to close the line. So Fred concerned about the loss of his Station, cooked up a plan to attract attention to Ongar station.
Fred travelled to Camden and bought some non poisonous Scorpions. He placed them near the headwall end of the platform while no one was looking. Then when passengers, arrived proceeded to make a fuss as if he had discovered a rare species of Essex Scorpions.
Soon the local paper caught the story and decided to run with it as their front page article. Fred was most pleased! The story was then picked up by the BBC who decided to send David Attenborough to Ongar to film them for a segment on the Wildlife On One show. Fred claims that by then the scorpions had died off, so the crew bought their own along and faked the shots for telly.
Despite bringing their own Scorpions the film crew were entirely unaware that they had been duped.
For many years the hoax remained a secret. And I think it still regularly appears when TV shows discuss well orchestrated hoaxes.
Fred retired from LUL in the early 90s. Soon after that Ongar closed.
Dean
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Post by Tubeboy on Dec 6, 2011 10:01:00 GMT
IIRC, an 8 car 1992ts ran to Ongar on the 13th July 1993, sandwiched between Battery Locos.
As to photos of the booking halls, try the LT Museum website.
Lovely story there Dean, thanks.
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neilw
now that's what I call a garden railway
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Post by neilw on Dec 6, 2011 10:28:06 GMT
regarding item 1), the only "modification" carried out to a normal 4-car 62TS set for the Epping-Ongar shuttle was the attachment of a small blanking plate on the reverser key barrel so that only forward position 1 could be selected. This was the lower of the two possible acceleration rates and helped to reduce current draw on the somewhat flimsy power supply.
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Post by phillw48 on Dec 6, 2011 10:30:08 GMT
The performance of trains at the Onger end was lethargic to say the least. One of the reasons given for closure was the need to replace cabling some of which was more than 40 years old.
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neilw
now that's what I call a garden railway
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Post by neilw on Dec 6, 2011 10:43:16 GMT
Correct! Climbing up the hill out of Ongar you could sometimes hear the MARs running a lot slower than normal due to the reduced voltage, things then went back to normal once the hill had been crested.
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kabsonline
Best SSL Train: S Stock Best Tube Train: 92 Stock
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Post by kabsonline on Dec 6, 2011 12:27:27 GMT
I'm a bit confused. If the branch was run by the 1962 stock train of 4 units, where did this red 1938 stock train come in? Sorry if I'm not reading this properly
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kabsonline
Best SSL Train: S Stock Best Tube Train: 92 Stock
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Post by kabsonline on Dec 6, 2011 13:59:39 GMT
Oh rereading I see that the 1938 and 60 stock came from the Woodford Loop. Silly me. So from what I can make out, both the 62 stock and 60 stock run the branch towards the end? Why didn't they just scrap the 60/38 stock? Surely the 62 stock were more reliable and parts easily obtainable. One type of train is better on a line than two, especially where there are limited numbers of one type.
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Deleted
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Post by Deleted on Dec 6, 2011 18:50:51 GMT
Moves to Ongar were as follows, and battery locos were not used on any of them.
13.07.93 - 033-030-032-035 28.07.93 - 005-007 05.10.93 - 017-014-016-019 02.11.93 - 107-104-106-109
.... and "Fred" is alive and well still !!
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kabsonline
Best SSL Train: S Stock Best Tube Train: 92 Stock
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Post by kabsonline on Dec 6, 2011 19:58:46 GMT
Is the "Fred" story really true?
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Deleted
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Post by Deleted on Dec 6, 2011 20:15:52 GMT
I couldn't possibly comment
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Deleted
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Post by Deleted on Dec 6, 2011 21:24:38 GMT
Is the photo in 'London Underground Rolling Stock' available to view online? Off topic but when is the next one due for release? I have the current latest one and its severely out of date! I can't find a copy online, however I could scan the copy I have here and post it on this thread?
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Post by miff on Dec 6, 2011 23:05:19 GMT
Is the "Fred" story really true? I believe so. I remember Fred (and his surname!) from that period. I have also heard (perhaps a drver will confirm?) departures from the loop at North Weald were staggered to avoid overloading the power supply by departing simultaneously. And does anyone else remember the slow underground fire deep inside the Ongar embankment just outside the station? Smoke drifted over the area for many months and required fairly substantial works to seal off the air supply and smother it.
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Post by phillw48 on Dec 6, 2011 23:34:19 GMT
I remember the fire in the embankment, does anyone know how it started?
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mrfs42
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Post by mrfs42 on Dec 7, 2011 2:06:09 GMT
I have also heard (perhaps a drver will confirm?) departures from the loop at North Weald were staggered to avoid overloading the power supply by departing simultaneously. They were certainly staggered at the booked time. You know all this about Ongar and the lack of juice could have been so, so much different: clicky, use the zoom and look in the top right hand corner....
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Deleted
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Post by Deleted on Dec 7, 2011 3:05:11 GMT
>>Unlike AC current, DC suffers a considerable voltage loss over a long distance.<<
Actually, nothing to do with AC or DC. The point is that DC electrification is usually at low voltage (600 to 700 volts), whereas AC electrification is 10000 volts or more. Low voltage means that a high current (many many amps) is needed, and high current through the conductor rail's resistance means that electricity is lost as heat.
Do a Google on Ohm's Law for more.
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Deleted
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Post by Deleted on Dec 7, 2011 8:47:47 GMT
Thanks for that on electricity. That was the reason given in RTC days, but I suppose it’s easier to teach that to students than the theory of Ohms and resistance. Although I did believe the reason that AC was preferred as the means of traction for lift motors was because of the inability of DC current to reach the top floor of skyscrapers in New York.
One possible use for the retention of the 60’s is perhaps because they ran OPO. The trains had mirrors fitted to the outside so drivers could perform their platform duties. Drivers also had a handheld radio or phone so they could contact Control in an emergency.
Continuing with the Cravens (60 stock), the saved unit was sold to John Glover (not the author of railway books – but the owner of Bywaters Waste Management). Together with Bob Yeldham they planned to buy the Ongar line from LUL and use the train as their centrepiece. As we all know things did not go exactly as planned.
After the line closed, the train was stored at Hainault. John Glover had asked LUL if he could use the train on the Central Line for special occasions. And in fact he came up with a couple of good ideas, but with resignalling, weekend closures and the stress of trying to keep the railway running, it was deemed too much of a distraction at the time.
However with the Central Line Centenary looming (well at least one of them!)- We had been granted permission by the Line General Manager to operate a one off special using the 60 stock. I was asked by our Business Manager if I would do the railway safety case to put the train back on the line. As Train Side were not interested, I ended up organising most of it. In fact the Train Service Manager at the time (a very formidable character) was pretty much set against the idea. I remember him saying to me “if YOUR train breaks down and interferes with MY train service – I will hold YOU personally responsible”. Umm!
So the risk assessments had to be watertight (One of the back up plans even included a set of jumper leads should it get gapped). Train Side also required a DTM to be on the train at all times, but declined to provide anyone with overtime to do it. Luckily Ron Carter-Leigh (knick named Rocket Ron) at DTM at Leytonstone agreed to do it in his spare time.
I also had the pleasure of organising a small bus rally at Epping. The paperwork and the hurdles seemed onerous back then. But with the assistance of the Depot manager at Hainault, Rocket Ron and the Ruislip Test Train crews we managed to put together a very successful day.
Miff – If you see Fred – give him my regards. Think he could do a very interesting thread on his exploits on the line. He was certainly very entertaining back then!
Dean
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Post by miff on Dec 7, 2011 9:51:26 GMT
Dean - thanks for this fascinating information, I hope CHT will get out on the line again (perhaps with the '62 stock train too) someday somehow. I'm unllikely to see Fred, I only knew him when I was for a few years one of the dwindling number of his regular customers, but I wish him well!
Marquis - thanks for that alternative electrification diagram. Fascinating.
And I'm glad somebody else has confirmed the fire, wondered if I'd dreamed it!
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