Challenger of Locomotive 135 



on railway traffic made by the motor 

 bus. 



This being the case, our railways are 

 making every effort to explore fully alterna- 

 tives to electric traction. Some success has 

 been achieved already by the adoption of the 

 greatly improved rail motors turned out by 

 such firms as the Clayton Wagons Ltd., and 

 the Sentinel Wagon Co.; both these firms 

 have greatly increased the efficiency of the 

 steam locomotive employed upon the rail 

 coach. 



For branch lines where the traffic is not 

 heavy, but yet where a frequent service 

 is demanded, nothing better is likely to 

 be evolved than these self-contained cars. 

 But obviously such vehicles have their 

 limits, and they are quite unsuitable for 

 suburban lines where the traffic is really 

 heavy, and where the only alternative to 

 electrifying them has been the employment 

 of very powerful steam locomotives. 



The experiments conducted on the L.M.S. 

 with various locomotives of unique design, 

 such as the turbo-electric, etc., have not 



