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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).
Suggestions for engine mounting and damper systems to reduce vibration.

Identifier  ExFiles\Box 12\3\  X704-0087
Date  19th February 1928
  
E.{Mr Elliott - Chief Engineer} Hs.{Lord Ernest Hives - Chair}
BY.{R.W. Bailey - Chief Engineer} DA{Bernard Day - Chassis Design}/HDY.{William Hardy} from R.{Sir Henry Royce} X7830 R3/M19.2.28.
c. to BJ. Wor.{Arthur Wormald - General Works Manager}

EAC.10 ENGINE MOUNTING. X.7830
X.7420

Regarding E's suggestion of 4.2.28., altering the body mounting and using the mass of the body to attach the dampers, I fear this would not do, for obvious reasons. Really my car EAC.7. seems wonderfully good, and it would not justify any very great change and delay to improve upon it.

Referring to DA{Bernard Day - Chassis Design}/HDY{William Hardy}'s suggestion of connecting the damper to the mass of the front axle, I fear this would not be practical, but if simple enough it should not be capable of conveying any vibration to the bodywork, and providing we can spare the time I agree to a temporary scheme to test this out.

Considering the difficulty and complication that we are suggesting fitting to make the 6 cyl. engine free from its natural faults, it suggests we ought to consider some scheme that will cut out all the complicated dampers, etc.

R.{Sir Henry Royce}
  
  


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