W1 as rebuilt

Discussion in 'Area 51' started by Dikitriki, 8 April 2015.

  1. P A D

    P A D Western Thunderer

    I assume that only the A4s built with single chimneys had the revised double chimney and the ones built new with the original double chimneys, kept them in BR service. Does anybody know the reason for the BR revision?
     
  2. Scale7JB

    Scale7JB Western Thunderer

    Possibly for the same reason that the Kings had the change?

    With a single chimney, the blast was so heavy the fireman could never keep up and would lift the coal off the bars.

    JB.
     
  3. P A D

    P A D Western Thunderer

    JB,
    I am referring to to the shape at the rear of the chimney casing. On the original LNER ones there was a continuous slope all the way down to the boiler band. On the ones added by BR, the slope was cut short and the casing dipped down ahead of the band.

    Cheers ,
    Peter
     
  4. P A D

    P A D Western Thunderer

    As in this extract from the Isinglass drawing.
    20181126_195301.jpg
     
  5. Scale7JB

    Scale7JB Western Thunderer

    Ah sorry Peter..

    JB.
     
  6. Scale7JB

    Scale7JB Western Thunderer

    I wonder if it might have helped with draughting the smoke over the top. Or maybe it was just less work to produce in the workshops..

    JB.
     
  7. eastsidepilot

    eastsidepilot Western Thunderer

    What ! no big 'ammer with this one Mick me old mate. :D

    Col.
     
  8. Peter Insole

    Peter Insole Western Thunderer

    JB and Peter, I hope you don't mind me butting in, but it looks like the original extended chimney cowl sat just over the leading boiler cladding band. Cutting the rearmost part off could have saved a bit of time and messing about unscrewing things in the works during repairs?

    Pete.
     
  9. Silverystreaks

    Silverystreaks Active Member

    Peter PAD does the Isinglass drawing show an above view of the revision to the chimney

    There is a superb above view of 60009s chimney in Ian Allans A4 Pacific book by the Former Top shed supremo Peter Townend which shows that cutting a short bit off the end was not the only part of the revision. The sides plates of the chimney start to contour in around the anti-vacum valve area to a point where the original area was cut short..

    I hope that makes sense

    copyright prevents me from showing the pic here

    ps the alteration to the chimney was to reduce corrosion spreading to the boiler plating

    Bob
     
    Last edited: 4 December 2018
  10. Peter Insole

    Peter Insole Western Thunderer

    Ah yes!

    I should stick to the subject of brick chimneys... at least I know a bit more about them!!!

    And go back to thoroughly enjoying reading this masterclass thread!

    Pete.
     
    3 LINK likes this.
  11. mickoo

    mickoo Western Thunderer

    Some cruel close ups of stays and such like between the frames, a few more to go, hopefully all done by tomorrow and then the main frames can be erected.

    Brake cylinders.
    IMG_0279.jpg

    Grease trap.
    IMG_0280.jpg

    Middle cylinder assembly.
    IMG_0285.jpg
    IMG_0286.jpg
     
    cmax, P A D, jamiepage and 16 others like this.
  12. Nick Dunhill

    Nick Dunhill Western Thunderer

    Quicker quicker......
     
  13. mickoo

    mickoo Western Thunderer

    Should hopefully get the rest of the stays done tonight and then add the spring and horn guide castings before final assembly into a rolling chassis, hopefully by Friday, is that quick enough :cool:
     
    Rob Pulham likes this.
  14. Rob Pulham

    Rob Pulham Western Thunderer

    Well, mine is to be this years combined birthday/Christmas present so not too far into the New Year would be good for me Mick -being purely selfish of course:p:thumbs:
     
  15. Peter Cross

    Peter Cross Western Thunderer

    I really like the way this all looks. Anybody know the number of any that worked on the North Cornwall line?
    What's the next loco on the design list?
     
    Richard Spoors likes this.
  16. Rob Pulham

    Rob Pulham Western Thunderer

    Not sure whether it worked the North Cornwall line but there was only ever the one built - LNER No. 10000 and BR No 60700
     
  17. Ressaldar

    Ressaldar Western Thunderer

    Hi Peter,

    on one of Richard's posts on the Guild website, he mentions a G6 in the pipeline - another case of 'closing the stable door after the horse has bolted' as far as you might be concerned, but I'm sure that you will not have to think too hard on getting one winging its way across the pond as soon as they are announced! But it will be worth it.

    regards

    Mike
     
  18. oldravendale

    oldravendale Western Thunderer

    Watch out for the T9s and L11.

    Dunno how I know about that.......

    Anon
     
  19. mickoo

    mickoo Western Thunderer

    B1 next followed by the NER A7 after that it's something for me, the Princess Royal is head to head with a Britannia or Peppercorn A1/A2. No idea.....not prepared to comment on other stuff that may or may not be in the pipeline.

    MD
     
    Rob Pulham and Compton castle like this.
  20. P A D

    P A D Western Thunderer

    Hi Bob,
    No the Isinglass drawing does not include a plan view of the revised chimney. I don't have the book you mention so please could you send it to me in a conversation?
    Many thanks,
    Peter