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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).
Proposing a modification to the Wraith cylinder block for manufacturing efficiency.

Identifier  ExFiles\Box 8\6\  06-page44
Date  9th October 1938
  
619

To BY.{R.W. Bailey - Chief Engineer} Rm.{William Robotham - Chief Engineer} HPS.{Horace Percy Smith - Experimental Factory Mgr}

RHC{R. H. Coverley - Production Engineer}/G.Mc. 1/MD.9.10.38.

RE WRAITH CYLINDER BLOCK.

There is a tapped hole called for on the engine support facing for the oil pipe clip.

Could a small facing be added here so that the tapped hole would be vertical. It may mean from the foundry point of view moving the position to the centre line of block as sketched on print EW.1580.

REASON.

At present this is an additional operation due to the angle, if the pad is added it could be drilled at the same time as the top face.

RHC{R. H. Coverley - Production Engineer}/G.Mc.
[Signature]
  
  


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