Data kindly provided by Sir Geoffrey Sinclair
Month Engine Mark Factory Number Note
Nov-43W.2 B/23n/aBarnoldswick4Turbine, entry added in August 1944 report1943
Dec-43W.2 B/23n/aBarnoldswick4Turbine
Jan-44W.2 B/23n/aBarnoldswick5Turbine, changed from 4 to 5 in Aug 1944 report1944
Feb-44W.2 B/23n/aBarnoldswick5Turbine, changed from 4 to 5 in Aug 1944 report
Mar-44W.2 B/23n/aBarnoldswick3Turbine, changed from 4 to 1 in Aug 1944 report, then to 3 in Nov report
Apr-44W.2 B/23n/aBarnoldswick4Turbine
May-44W.2 B/23n/aBarnoldswick9Turbine
Jun-44W.2 B/23n/aBarnoldswick11Turbine
Jul-44W.2 B/23n/aBarnoldswick13Changed from 12 to 13 in December report
Aug-44W.2 B/23n/aBarnoldswick18Turbine
Sep-44W.2 B/23n/aBarnoldswick12Turbine
Oct-44W.2 B/23n/aBarnoldswick7Turbine
Nov-44W.2 B/23n/aBarnoldswick2Turbine
Nov-44W.2 B/37Series INewcastle-under-Lyme1Turbine
Dec-44W.2 B/37Series IBarnoldswick7
Dec-44W.2 B/37Series INewcastle-under-Lyme1
Jan-45W.2 B/23n/aBarnoldswick1Welland, TurbineVday
141
Jan-45W.2 B/37Series INewcastle-under-Lyme6Derwent, Turbine
Jan-45W.2 B/37Series IBarnoldswick7Derwent, Turbine
Feb-45W.2 B/23n/aBarnoldswick3Welland, Turbine
Feb-45W.2 B/37Series INewcastle-under-Lyme8Derwent, Turbine
Feb-45W.2 B/37Series IBarnoldswick8Derwent, Turbine
Mar-45W.2 B/23n/aBarnoldswick5Welland, Turbine
Mar-45W.2 B/37Series INewcastle-under-Lyme47Derwent, Turbine
Mar-45W.2 B/37Series IBarnoldswick9Derwent, Turbine
Apr-45W.2 B/23n/aBarnoldswick1Welland, Turbine
Apr-45W.2 B/37Series INewcastle-under-Lyme44Derwent, Turbine
Apr-45W.2 B/37Series IBarnoldswick2Derwent, Turbine
May-45W.2 B/37Series INewcastle-under-Lyme53Derwent, Turbine1945
May-45W.2 B/37Series IBarnoldswick3Derwent, Turbine
Jun-45W.2 B/37Series INewcastle-under-Lyme39Derwent, Turbine
Jun-45W.2 B/37Series IBarnoldswick8Derwent, Turbine
Jul-45W.2 B/37Series INewcastle-under-Lyme45Derwent, Turbine
Jun-45W.2 B/37Series IBarnoldswick3Derwent, Turbine
Aug-45Derwent I Newcastle-under-Lyme63W.2 B/37
Aug-45W.2 B/37Series IBarnoldswick4W.2 B/37
Sep-45Derwent I Newcastle-under-Lyme59W.2 B/37
Oct-45Derwent I Newcastle-under-Lyme51W.2 B/37
Oct-45Wellandn/aBarnoldswick2
Nov-45Derwent I Newcastle-under-Lyme48
Nov-45Derwent V Newcastle-under-Lyme4
Dec-45Derwent I Newcastle-under-Lyme31No report in file. Number is 1945 total minus cumulative to end November
Dec-45Derwent V Newcastle-under-Lyme1No report in file. Number is 1945 total minus cumulative to end November
Jan-46n/a n/a n/an/aNo report in file.1946
Feb-46Derwent I Newcastle-under-Lyme2UK Military
Feb-46Derwent V Barnoldswick1UK Military
Mar-46Derwent V Barnoldswick2UK Military
Mar-46Derwent V Derby3UK Military
Apr-46Derwent V Derby10UK Military
May-46Derwent V Derby29UK Military
Jun-46Derwent V Derby23UK Military
Jul-46Derwent V Derby34UK Military
Aug-46Derwent V Derby22UK Military
Sep-46Derwent V Derby6UK Military
Oct-46Derwent V Derby25UK Military
Nov-46Derwent V Derby48UK Military
Dec-46Derwent V Derby44UK Military
Jan-47Derwent V Derby39UK Military 1947
Feb-47Derwent V Derby18UK Military
Mar-47Derwent V Derby25UK Military
Apr-47Derwent V Derby37UK Military
May-47Derwent V Derby66UK Military
Jun-47Derwent V Derby47UK Military
Jul-47Derwent V Derby62UK Military
Aug-47Derwent V Derby31UK Military
Sep-47Derwent V Derby62UK Military
Oct-47Derwent V Derby76UK Military
Nov-47Derwent V Derby40UK Military
Dec-47Derwent V Derby38UK Military
Jan-48Derwent V Derby13UK Military1948
Feb-48Derwent V Derby28UK Military
Mar-48Derwent V Derby25UK Military
Apr-48Derwent 5 Derby25UK Military
May-48Derwent 5 Derby16UK Military
Jun-48Derwent 5 Derby21UK Military
Jul-48Derwent 5 Derby40UK Military
Aug-48Derwent 5 Derby28UK Military
Sep-48Derwent 5 Derby37UK Military
Oct-48Derwent 5 Derby54UK Military
Nov-48Derwent 5 Derby28UK Military
Dec-48Derwent 5 Derby46UK Military
Jan-49Derwent 5 Derby41UK Military1949
Feb-49Derwent 5 Derby52UK Military
Mar-49Derwent 5 Derby57UK Military
Apr-49Derwent 5 Derby53UK Military
May-49Derwent 5 Derby81UK Military
Jun-49Derwent 5 Derby71UK Military
Jul-49Derwent 5 Derby101UK Military
Aug-49Derwent 5 Derby88UK Military
Sep-49Derwent 5 Derby67UK Military
Oct-49Derwent 5, 8 Derby117UK Military
Nov-49Derwent 5, 8 Derby120UK Military
Dec-49Derwent 5, 8 Derby61UK Military
Jan-50Derwent 5, 8 Derby113UK Military1950
Feb-50Derwent 5, 8 Derby79UK Military
Mar-50Derwent 5, 8 Derby171UK Military
Apr-50Derwent 5, 8 Derby116UK Military
May-50Derwent 5, 8 Derby122UK Military
Jun-50Derwent 5, 8 Derby124UK Military
Jul-50Derwent 8 Derby97UK Military
Aug-50n/an/an/an/aNo report in file
Sep-50Derwent 8 Derby103UK Military
Oct-50Derwent 8 Derby118UK Military
Nov-50Derwent 8 Derby123UK Military

We can now put all those numbers into a table to have a better visualization of what is interesting: British WWII jet engine production through the war.
We can clearly see the start of mass production in the Newcastle-under-Lyme factory under Rolls-Royce management as of November 1944. However, the process was slow, as adapting a factory's tooling and workers to a totally new concept isn't something that can be done in a few weeks' time. At the same time, we can clearly see the decline of production in the Barnoldswick factory:
1943 1944 1945
Factory Engine Mark Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May
Barnoldswick W.2 B/23 n/a 4 4 5 5 3 4 9 11 13 18 12 7 2 1 3 5 1
W.2 B/37 Serie1 7 7 8 9 2 3
Newcastle
under
Lyme		 W.2 B/37 Serie1 1 1 6 8 47 44 53
Derwent Turbine W.2 B/37 Total 1 8 13 16 56 46 56
Welland Turbine W.2 B/23 Total 4 4 5 5 3 4 9 11 13 18 12 7 2 0 1 3 5 1 0
Grand Total 4 4 5 5 3 4 9 11 13 18 12 7 3 8 14 19 61 47 56


Those numbers can be summarized into a more visual table:
Total 1944B/23B/37Total 1945B/23B/37
9889919710187


Let's check the German jet engine production. The numbers were extracted from an Allied document summarizing the Total German engine production through the war. Production numbers are only available until March 1945 (BMW-003 numbers omitted):

Factory 1944 1945
Month 8* 9 10 11 12 1 2 3
Junkers Dessau 96 3
Kothen 25 60 170 200 21 100 20 40
Mitteldeutsche Leipzig 5
Nordhausen 10 20 50 430 630 815
Zittau 12 53 86 115 120
Prague 10
Muldenstein 189 220 430 448 467 334 335 307
Total Month 310 280 610 680 591 950 1100 1300
Total 5821


We can now compare British and German production, which reveals that British output wasn't even close to Germany's manufacturing capacity.

1943 1944 1945
Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May
GB 4 4 5 5 3 4 9 11 13 18 12 7 3 8 14 19 61 47 56
LW 310 280 610 680 591 950 1100 1300
GB normalized 76 12 7 3 8 14 19 61 47 56
delta vs LW 24,52% 4,29% 1,15% 0,44% 1,35% 1,47% 1,73% 4,69%
* Number for August44 are "up to Aug44" --109-003 not included.


The following image show the difference between the German and the English Jet Engine production numbers.



Miscellaneous

Meteor I, 29 September 1944
Meteor III, Requirements and Supplies, 6 November 1944
Meteor III, 9 January 1945
Meteor Squadrons, 16th March 1945
Meteor III Aircraft Data Card, 21 March 1945
Rolls-Royce B.37 Series Engines and Power Jets W2.700 Batch 3 Engines in Meteor I Aircraft
German Engine Production
Meteor Wartime Mark's Production list
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