Rolls-Royce Archives
         « Prev  Box Series  Next »        

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).
Braking leverage figures for the 'U' series 20/25 chassis.

Identifier  ExFiles\Box 102\3\  scan0068
Date  26th August 1932
  
X 5360.
Files.
26.8.32.

20/25 BRAKING LEVERAGES.

Attached are figures for the relative braking effort front to rear on the 'U' series 20/25 chassis with synchromesh gear box. It was found by experiment that the ratio of the output to the input for the servo was 1.0. This gives a torque multiplication of 1.55, from which we find that we have 39% of the braking on the front wheels.

This brake layout to GL.{G. Linnett}601 replaces that shown in Hs.{Lord Ernest Hives - Chair}4/LG.20.5.25.

Hs{Lord Ernest Hives - Chair}/Grylls.

3 prints.
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙