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The 1948 Locomotive Exchange Trials were organised by the newly nationalised British Railways (BR). Locomotives from the former "Big Four" constituent companies (GWR, LMS, LNER, SR) were transferred to and worked on other regions. Officially, these comparisons were to identify the best qualities of the four different schools of thought of locomotive design so that they could be used in the planned BR standard designs. However, the testing had little scientific rigour, and political influence meant that LMS practice was largely followed by the new standard designs regardless. However, the trials were useful publicity for BR to show the unity of the new British Railways. LMS engines operated over the Southern Region where there were no water troughs were paired with four-axled ex-WD tenders with larger water tanks. These were specially given LMS lettering for the occasion. Similarly, ex-Southern types used elsewhere were paired with ex-LMS tenders with water scoops. Locomotives used were as follows (NB numbers given should be the ones carried at the time, so this is a somewhat curious mixture of old pre-nationalisation numbers, prefixed numbers, and new BR numbers): ==Express passenger locomotives== The four routes used were: Euston to Carlisle, Kings Cross to Leeds, Paddington to Plymouth, and Waterloo to Exeter. * ex-GWR King Class 6018 ''King Henry VI'' on the Leeds - Grantham East Coast Main Line. * ex-LNER Class A4 E22 ''Mallard'' on the Waterloo to Exeter run * ex-LNER Class A4 60033 ''Seagull'' on the Waterloo - Exeter and GW mainline. * ex-LNER Class A4 60034 ''Lord Faringdon'' Preston - Carlisle route. * ex-LMS Princess Coronation Class 46236 ''City of Bradford''. * ex-LMS Rebuilt Royal Scot Class 46154 ''The Hussar'' Waterloo - Exeter route. * ex-LMS Rebuilt Royal Scot Class 46162 ''Queens Westminster Rifleman'' * ex-SR Merchant Navy Class 35017 ''Belgian Marine'' on the Leeds - Grantham LNER. * ex-SR Merchant Navy Class 35018 ''British India Line'' on Waterloo route. * ex-SR Merchant Navy Class 35019 ''French Line C.G.T'' on the Paddington - Taunton line. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「1948 Locomotive Exchange Trials」の詳細全文を読む スポンサード リンク
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