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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).
Requesting the replacement of potentially failing rivets with bolts on a Spectre II servo's balancer lever for safety reasons.

Identifier  ExFiles\Box 91\3\  scan0073
Date  12th August 1935
  
To RHC.{R. H. Coverley - Production Engineer}

X3004
(2)

Hs{Lord Ernest Hives - Chair}/FJH.{Fred J. Hardy - Chief Dev. Engineer}10/KW.12.8.35.

Servo for SpectreCodename for Phantom III II - 10,000 Miles Test.

We note that the balancer lever on the
servo of the above chassis still has rivets joining the
horizontal and vertical portions of the lever. This
is very dangerous as the rivets are liable to fail.
Will you please replace the rivets by nickel steel bolts.

Hs{Lord Ernest Hives - Chair}/F.J.Hardy.
  
  


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