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Activitate recentă pentru 26D_M

  1. 26D_M a plăcut postul lui Matt78 în subiectul Remaining Ex Barry locomotives?.

    Been lucky enough to fire a 57xx, 64xx, 1369, 14xx (2) 55xx, (2) and a 78xx. Considering the tank engines only I would rate the 64xx as the best for comfort, space in the cab and firing, and visibility but then it’s the most modern of the locos...

    31 Mai 2026 la 21:09

  2. 26D_M a răspuns la subiectul Remaining Ex Barry locomotives?.

    My earliest GWR footplate experiences were 2857, 3822 and 6998. At that stage I had limited comparative experience but they each seemed decent to work on. Very soon I gained a wider knowledge of LMS stuff which provided more perspective! However,...

    31 Mai 2026 la 20:28

  3. 26D_M a plăcut postul lui Aberdare în subiectul 6024 King Edward 1.

    The correct name for the mechanical pump that pumps air to create a vacuum in the brake system on a GWR locomotive is the 'Air Pump'. Officialdom at GWR Swindon nearly always refers to it as such in drawings and documents. Outside of the works at...

    31 Mai 2026 la 20:03

  4. 26D_M a răspuns la subiectul 6024 King Edward 1.

    To be further pedantic, the "pump" maintains the vacuum, created by a steam ejector, once on the move ....

    31 Mai 2026 la 19:13

  5. 26D_M a plăcut postul lui Jimc în subiectul 6024 King Edward 1.

    Well, strictly its both isn't it. Its a mechanisam that pumps air in order to create a vacuum. But to call it an air pump outside the strictly technical arena would invite confusion with pumps intended to produce compressed air eg Westinghouse.

    31 Mai 2026 la 19:11

  6. 26D_M a plăcut postul lui Jamessquared în subiectul 6024 King Edward 1.

    Interestingly I looked up the section on brakes in the Black Book. The text refers to a "vacuum pump" and there is a figure caption to a drawing in which the caption is labelled "vacuum pump" (agreeing with the text) but in which the component in...

    Screenshot 2026-05-31 at 17.58.01.png 31 Mai 2026 la 18:08

  7. 26D_M a plăcut postul lui 35B în subiectul 6024 King Edward 1.

    Indeed! I agree about the importance of marketing, but I still take the view that sustainable marketing success relies on the integrity of what is being marketed. What Cossons did in the industrial history space, and Roy Strong at the V&A, was...

    31 Mai 2026 la 17:00

  8. 26D_M a răspuns la subiectul 6024 King Edward 1.

    Is there an accompanying technical note to explain the way in which the 'vacuum pump' (sic) works?

    31 Mai 2026 la 13:16

  9. 26D_M a răspuns la subiectul 6024 King Edward 1.

    Because to enginemen its function is to maintain the vacuum train brake. Most references to loco fittings in common use derive from how the footplate crews referred to them. I daresay defects would be booked as eg "vac pump not maintaining". In...

    31 Mai 2026 la 13:01

  10. 26D_M a răspuns la subiectul 6024 King Edward 1.

    Martin, I was drawing attention to the colloquialism to which you refer is shared by the SM, not expressing any ill-will to "fellow humans" ..... However, as a point of principle the function of the Science Museum ought to properly reflect both...

    31 Mai 2026 la 11:40

  11. 26D_M a plăcut postul lui misspentyouth62 în subiectul Remaining Ex Barry locomotives?.

    I would agree : 68077 is more easy to see than 68078 however and is tucked inside the shed at Tunbridge Wells West last time I visited.

    31 Mai 2026 la 11:22

  12. 26D_M a plăcut postul lui Steve în subiectul 6024 King Edward 1.

    Invariably, perhaps, but done so in ignorance and totally incorrectly. The GWR always referred to it as an air pump.

    31 Mai 2026 la 11:03

  13. 26D_M a răspuns la subiectul 6024 King Edward 1.

    Our esteemed curators at the Science Museum need to be educated it seems .... https://collection.sciencemuseumgroup.org.uk/objects/co206311/crosshead-vacuum-pump-great-western-railway-crosshead-vacuum-pump

    31 Mai 2026 la 11:03

  14. 26D_M a plăcut postul lui Jamessquared în subiectul 6024 King Edward 1.

    Indeed so. I have in front of me a copy of a GWR official publication 'The "King" of Railway Locomotives' and there is a chapter devoted to the construction. At one point it reads: Many parts are now added with a view to wheeling the engine. The...

    31 Mai 2026 la 11:01

  15. 26D_M a plăcut postul lui Steve în subiectul 6024 King Edward 1.

    Being pedantic, it is an air pump as that is what is being pumped and that is how it is referred to. You can't pump a vacuum. :)

    31 Mai 2026 la 10:58
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