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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).
Comparison of two direct braking schemes, one for the rear axle only and one for four wheels.

Identifier  ExFiles\Box 72\4\  scan0181
Date  1st May 1924
  
R3/M1.5.24.
-2-
Contd.

(1) Direct foot to rear axle only - present 40/50 leverage.
(2) Direct foot to 4 wheels - half present 40/50 leverage.

} This gives equal clearances.

to see which scheme gives the better direct braking. I am hoping to see these temporarily fitted during the first few days in May, at WW.

R.{Sir Henry Royce}
  
  


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