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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).
Fitting balloon tyres and hydraulic shock absorbers to a Phantom car, warning of high-speed wobbles.

Identifier  ExFiles\Box 53\2\  Scan302
Date  8th December 1928
  
To Hm{Capt. W. Hallam - Head Repairs}/WW. from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}
X4565
Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}2/LG8.12.28.

CHASSIS No. 111-YC. KOSKY. X4565 X4118

With reference to Hm{Capt. W. Hallam - Head Repairs}/WW13/KW7.12.28. We cannot agree to balloon tyres being fitted to Phantom cars with front wheel brakes unless hydraulic shock absorbers are fitted at the front. If this is done, the car is almost certain to suffer from high speed wobbles as an owner will never keep his tyres pumped up to the necessary pressure to avoid these.
Hydraulics, of course, need not be fitted to the rear.

Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}
  
  


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