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Fitting 'Japan' connecting rods to 'China' engines to achieve higher compression ratios.


Identifier  ExFiles\Box 103\2\  scan0179
Date  11th July 1931
  
RHC. {R. H. Coverley - Production Engineer} From Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer}

Y5030.

Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} 2/MJ.11.7.31.

JAPAN(Experimental Engine) RODS FOR CHINA(Experimental Engine).

We find that fitting "Japan(Experimental Engine)" con. rods to "China(Experimental Engine)" engines and then putting packing pieces under the cyl. blocks is a very convenient way of getting higher compression ratios.

Will you therefore please complete a set of "Japan(Experimental Engine)" rods to E.56097/8 at present in the stores partly finished. We shall then require them for C.7 unit (large pin crank).

We do not know if you have in the stores the washers to go under the cylinders instructed in Hs {Lord Ernest Hives - Chair} /Rm {William Robotham - Chief Engineer} 2/MJ18.3.30 but if these have been scrapped, will you please make 4 off .062 or nearest.

Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer}
  
  
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).


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