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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).
Issues with the dowels on a Peregrine Damper and suggesting a material change to bronze.

Identifier  ExFiles\Box 169\4\  img130
Date  24th October 1932
  
To RHC.{R. H. Coverley - Production Engineer} From Ha/Gry.{Shadwell Grylls}
No 3 unit
Ha/Gry.{Shadwell Grylls}1/MJ.24.10.32.

PEREGRINE DAMPER.

The chief trouble with the dampers to LeC.3149 is roughing up of the dowels. We should like to try a set in another material and suggest bronze as in the old 20 HP.

Will you please fit up the damper off Per.ll No.3 unit like this.

Ha/H.Grylls.
  
  


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