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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).
Suggesting modifications to shock absorber tests to include rear dampers to address vehicle pitching issues.

Identifier  ExFiles\Box 67a\2\  scan0025
Date  27th September 1927
  
To CWB. from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}
X8410
Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}2/LG27.9.27.
HYDRAULIC FRONT SHOCK ABSORBERS. X235
With reference to CWB1/GM23.9.27. We suggest that any further tests you carry out on shock dampers should include the hydraulic damper at the rear as well as the front.
We have recently modified our shock absorber loading at the front to cope with the increased damping at the rear.
The more information we get from customers, the more do we feel convinced that pitching is the main source of complaint at speeds other than about 20 m.p.h. and the only way we know of reducing 'pitching' is to have a minimum amount of damping.
Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}
  
  


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