This is written as an introduction to the articles entitled “Some Locomotive Boiler Statistics” By Doug Landau, which appeared in the Stephenson Locomotive Society Journals for Sept / Oct 2004 & Nov / Dec 2004. In these articles the costs have been rationalised to the year 1954, I have therefore done a little research into exactly how many A4 Boilers ( To Diagram 107 ) were still extant in that year, and came up with a total of 44. This total is made up as follows :-
1/. From the original 35 boilers initially built for the Engines,
23 survived at the end of 1954, 10 had been withdrawn from service ( 1950 to
and including 1954),one had been withdrawn due to Bomb damage during the war,
and one was in use as a Stationary Boiler.
During 1954 a total of 27 Class A4 Engines received a General Overhaul, as follows :-
Trying to match Engine Record Cards, and Boiler Record Cards held at the N.R.M. is a daunting task, as neither are a full set, so therefore errors are likely to occur. Table 4 “ General Repairs, Boiler Lifts, & New Boilers – 10 Year Averages & Statistics”, is I believe slightly inaccurate with regard to the New Boilers Fitted to the A4 Class. As far as I can ascertain New Boilers were fitted as follows :-
The year 1961 is outside the parameters of Table 4 but for the
sake of completeness the final 3 New Boilers that were fitted in that year were
No’s. 27967, 27969, & 27974. The eagle eyed amongst you will have
noticed that there are 4 boilers missing from the above Summary.
Hopefully the above information will be helpful in understanding and interpreting the costs in the following article.
Researched and written by Mel Haigh,
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