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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).
Reducing engine torque reaction vibration on the 40/50 HP chassis.

Identifier  Morton\M22\  img177
Date  1st October 1923
  
R.R. 493 (40 H) (SL 42 12-7-23). J.H. D.{John DeLooze - Company Secretary}
ENGINE TORQUE REACTION VIBRATION EXPERIMENT
4 EX
49 GB
EXPERIMENTAL REPORT.
COPIES TO: R.CJ. BJ. WOR.{Arthur Wormald - General Works Manager} By.{R.W. Bailey - Chief Engineer} E.{Mr Elliott - Chief Engineer} Da.{Bernard Day - Chassis Design} EP.{G. Eric Platford - Chief Quality Engineer}
PN.{Mr Northey} OY.
Expl. No. X.4604 X.634
REF. Hs{Lord Ernest Hives - Chair}12/LG1.10.23.
OBJECT OF TEST.
To reduce torque reaction vibration on the 40/50 HP. chassis.
TESTER.
G.{Mr Griffiths - Chief Accountant / Mr Gnapp} W. Hancock.
CONDITIONS.
Tested on 4-EX and 49-GB on the road.
SUMMARY OF TEST.
We have not so far had friction dampers between engine and frame on the 40/50 HP. chassis.
The best arrangement so far tested is to lock up the present compensating arrangement at the front of the engine. With the rear end of the engine supported on a compensating mounting, we get worse results. It might be improved with dampers.
Hs.{Lord Ernest Hives - Chair}
  
  


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