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keefer

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Posts posted by keefer

  1. "But quite astonishingly: the BR1 bogie was famous for its poor running quality!"

    Parkin explains this as well - the BR Standard bogie was excellent when new or after refurbishment but as wear set in to knife-edges and bearing surfaces, the ride deteriorated quite rapidly i.e. bogies became rough-riding long before they were due for shopping (or would require more frequent works attention).

    Hence for a large proportion of their use, they could give a poor ride quality. 

    The next alternative, the Commonwealth bogie did not suffer from the same problems but was more expensive and weighed 1.5 tons more than the BR.

    This led to the in-house (Swindon) development of the B4, which matched (or even exceeded) the wear performance of the CW but was lighter and cheaper.

    Until these were available in sufficient quantities, some Mk1 RUs even got Gresley bogies in the '70s - not ideal but better than the BRs

    • Informative/Useful 2
  2. On 20/04/2024 at 09:09, 'CHARD said:

    Amazing to reflect on these (/0s at least) staying vb, vi or vo in the main right up to withdrawal. Scottish Region was amazing back in '84.

    My main experience was of the 27s being thrashed on the l/h Edinburgh-Dundee trains which started in 1981 (previously DMUs were used).

    4 coaches of Mk1/2z stock usually TSO/BSO but sometimes with SK/BSK.

    Very occasionally, a cl.26 could appear but ISTR they weren't suited and could self-ignite!

    Cl.47s became more common in later years before the trains were replaced by cl.150/2 Sprinters in 1987(?).

    Excellent video by @jbg06003:

     

     

     

  3. 2 hours ago, Mol_PMB said:

    158s are 90mph max, the other 15x are 75 as noted above.

    Way out of the OP's time period but in Northern days there were a group of Pacers limited to 60 (rather than 75) owing to transmission issues. They were indistinguishable from the others apart from a notice in the cab, and very often ended up getting hauled at 75 or occasionally even more. Usually when there was a driver swap en route with the other unit leading.

    That's maybe what I was thinking of (probably read it on RMweb).

    Just seemed odd that the units on modern bogies had the same max. speed as those on a glorified 4-whl wagon underframe!

  4. I'm sure I've read somewhere (General or Sectional Appendix) that even where locos could go over the hump, cl.40/44/45/46 were still excluded (due to their long bogies).

    As mentioned earlier, each hump yard probably had its own particular Instructions in addition to general procedures.

    • Like 1
  5. AFAIK the air pipes would be a standard length.

    The only difference I've seen documented is with the iron-ore PTA (rotary) tippler wagons - they were fitted with longer (33") pipes so they didn't separate during tipping.

    This, along with the rotary tightlock buckeye couplings, meant trains could be unloaded without having to split the wagons.

  6. Can't see a Wagon lettering & numbering volume on the Barrowmore site:

    http://www.barrowmoremrg.co.uk/Prototype.html

     

    BR9210 'General Instructions No 10A (Revised January 1963)' covering the repainting of repaired freight stock etc. unfortunately does not detail what is to be written - only that the information is to be written in white lettering paint 'in accordance with revised instructions issued April 1963.' (perhaps this is the change mentioned by others above?).

    http://www.barrowmoremrg.co.uk/BRBDocuments/BR_9210_Repainting_Treatment_web.pdf

  7. 11 hours ago, DaveF said:

    FennyComptonClass115ReadingtoBirminghamJune72J2945.jpg.d5d4cfb4e68667aecbd6e04e86e9cfed.jpg

    Fenny Compton Class 115 Reading to Birmingham June 72 J2945

     

    As mentioned, this is a cl.117 unit - according to railcar.co.uk L420 was formed 51367, 59519, 51409 (DMBS, TCL, DMS) and the unit was gangwayed.

    The Met-Camm TCL was one of three allocated to Reading, used to strengthen services to 4-car.

    These TCLs were replacements for three converted l/h Hawksworth coaches (which had initially been used in Cross-Country sets).

    https://www.railcar.co.uk/type/class-117/operations

    • Like 1
    • Agree 1
    • Informative/Useful 4
    • Interesting/Thought-provoking 1
  8. On 07/04/2024 at 22:53, jim.snowdon said:

    The L&YR's Southport Line may look like a four rail system at first sight, but the centre rail was only a reinforcement rail for the return circuit, bonded to both running rails and not in contact with anything on the train.

    Going OT, I think there were some lines like this in NW London - former Underground tracks also used by BR 3rd-rail units, had the 4th rail retained but lowered when the Underground services stopped running.

    Incidentally, the cl.501 EMUs were originally 4th-rail but were changed to 3rd-rail in the '60s.

  9. 6 hours ago, Michael Hodgson said:

    Radio Electronic Token Block used on some long remote single lines (like the Highlands) had spring loaded points so that trains always entered the left hand track at crossing places, the radio equipment having superseded physical tokens.  There was no longer a signalman to work the points and signals. Departing trains had to trail through the points set for the other loop, the flanges forcing the points blades over, which returned under spring pressure.  They were provided with indicators (resembling home signals) which confirmed whether the points were correctly set for trains to arrive in their respective loops. 

    https://www.railsigns.uk/sect11page3.html    ref 11.48 to 11.51

    Thanks for mentioning this, I was going to post but couldn't remember where it happened (other than ScR RETB)

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