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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).
Proposal to increase the thickness of the Ferodo rear brake shoe lining for the 20 HP 10,000-mile test car.

Identifier  ExFiles\Box 12\5\  05-page182
Date  6th February 1930
  
BY.{R.W. Bailey - Chief Engineer} From Da.{Bernard Day - Chassis Design}
c. to Hs.{Lord Ernest Hives - Chair}

X7
360 Da.{Bernard Day - Chassis Design}2/MJ. 6.2.30.

x5480
x7360
x5360

20 HP. for 10,000 Mile Test.

REAR BRAKE SHOE LININGS.

We wish to increase the thickness of the Ferodo lining on the rear brake shoes from .312 to .375.

We suggest this should be done by reducing the depth of the aluminium tube .062, thickening the top flange slightly more than .060.

INCREASED SAY .075
REDUCED .062
  
  


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