7 8 Book of Locomotives 



the advantages found in both. The six- 

 coupled wheels of 4-6-0 are retained and 

 there is also the gain of the larger boiler, 

 with the huge fire-box of the " Atlantic ". 

 And in addition we get proper weight 

 division for such a huge engine as the 

 " Pacific J: must necessarily be. 



The latter type appeared first on the 

 Great Western in 1908, one engine only 

 being built. It was subsequently found that 

 the fine 4-6-03 of the various classes can 

 do what is required, and they are cheaper 

 to build; also the engineers of the 

 Great Western were rather afraid of the 

 ' Great Bear's " overall dimensions. This 

 meant that her activities were confined 

 to certain sections of the line, which is 

 uneconomical. 



The " Great Bear " was virtually scrapped 

 a few years ago and her major fittings 

 utilised for a ' Castle >; type of engine 

 named " Viscount Churchill ". 



Fourteen years had to pass before any 

 rival " Pacifies " were at work in England, 

 and then, within a few months, we find a 



