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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).
Test of a Ferodo strip, as used on Morris Cowley cars, to reduce brake squeaks.

Identifier  ExFiles\Box 30\6\  Scan197
Date  1st April 1925
  
168

To DA.{Bernard Day - Chassis Design} from Hs.{Lord Ernest Hives - Chair}

Y3458

Hs{Lord Ernest Hives - Chair}3/LG22. 4. 25.

BRAKE SQUEAKS. X̶3̶4̶5̶8̶ X4257 X.8360

We have tried a strip of Ferodo as you mention
was being used on Morris Cowley cars. We find that
it does undoubtedly make an improvement. It does not
however entirely eliminate squeaks. There is still a
slight squeak just as the car comes to rest.

Squeaks are very elusive - some days the brakes
appear to squeak much worse than others, therefore, it is
very difficult, until a number of tests have been made,
to say what percentage of improvement has been obtained.

[Faint watermark: MADE IN ROXLEY]

Hs.{Lord Ernest Hives - Chair}
  
  


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