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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).
Change to cotton material for the Peregrine Servo due to efficiency loss with the current RAD.13 material when oil is present.

Identifier  ExFiles\Box 169\4\  img249
Date  9th March 1933
  
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RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}2/KT.9.3.33.

PEREGRINE SERVO.

We will revert to cotton material on this servo; the present RAD.13 falls off in efficiency too greatly if a suspicion of oil gets on the surfaces. We suggest spigoting the fabric on the outside and inside to prevent it spreading, but otherwise leaving it fully floating.

We send you herewith Hs.{Lord Ernest Hives - Chair}941 showing the arrangement suggested. Will you please order for this some sets of cotton A.{Mr Adams} material of the correct size (the ones we have are wrong) if possible without a join in the fabric.

We should like the servo fitted to a car as soon as possible for test.

Hs{Lord Ernest Hives - Chair}/Les.{Ivan A. Leslie}
  
  


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