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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).
Producing a new Breech Cross Shaft with improved material and hardening.

Identifier  ExFiles\Box 176\3\  img113
Date  31th July 1940
  
To Rm.{William Robotham - Chief Engineer} from HPS.{Horace Percy Smith - Experimental Factory Mgr}

2a

HPS.{Horace Percy Smith - Experimental Factory Mgr}9/VS.{J. Vickers}31.7.40.

As requested, we have produced a new Breech Cross Shaft in new material, S/ZN cyanide hardened, against the one which is now in mild steel, so this should be a very big improvement.

I thought you would like to know in case someone raises the question as to the failure.

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HPS.{Horace Percy Smith - Experimental Factory Mgr}
[Signature]
  
  


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