Rolls-Royce Archives
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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).
Engine vibration tests for the 20/25 model and the value of rubber mountings.

Identifier  ExFiles\Box 21\6\  Scan146
Date  16th April 1934
  
To E.{Mr Elliott - Chief Engineer} from Sg.{Arthur F. Sidgreaves - MD}

Sg{Arthur F. Sidgreaves - MD}2/H16.4.34 - 2 -

on the bench and checked up for vibrations etc. with the 20/25 to see whether it is really correct that the engine mounting is the chief reason for silence, smoothness, absence of vibration etc. in the car.

There seems to be a good deal in the American saying that a pound of rubber is worth a ton of theory!

Sg.{Arthur F. Sidgreaves - MD}
  
  


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