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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).
Effect of altering the proportion of direct braking on servo efficiencies.

Identifier  ExFiles\Box 5\3\  03-page149
Date  9th June 1925
  
To Hs.{Lord Ernest Hives - Chair} From DA.{Bernard Day - Chassis Design} contd :- DA{Bernard Day - Chassis Design}1/M9.6.25.

We have looked into the question of altering the proportion of direct braking, and find that quite a considerable alteration does not make much difference to the distribution of braking for servo efficiencies within the range we are likely to get.

DA.{Bernard Day - Chassis Design}
  
  


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