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).
Slipper wheel drives and the future requirement for reduced inertia dampers at higher engine speeds.

Identifier  ExFiles\Box 14\2\  Scan015
Date  19th July 1928 guessed
  
contd :- -3-

speeds of our present power units, for the time being at
any rate, there does not seem to be any reason for departing
from the present slipper wheel and drive which is simpler
than the 1-G-1 type and deals equally well with the harmonics.

It is almost certain, however, that this
reduced inertia type of damper will be required in the future
when we have raised our engine speeds 20% or so; we should
therefore appreciate any modifications that you may think
necessary as a result of our tests.

HS{Lord Ernest Hives - Chair}/Rn.{Mr Robinson}
  
  


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