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).
Recommendation regarding rear tyre pressures for the 20 HP model.
| Identifier | ExFiles\Box 58\1\ Scan089 | |
| Date | 2nd September 1929 | |
| X5820 To By.{R.W. Bailey - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} c. to Hm.{Capt. W. Hallam - Head Repairs} Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson}5/MJ.2.9.29. 20 HP. TYRE PRESSURES. -------------------- We recommend that owners should be instructed that it is permissible to run their rear tyre pressures down to 27 lbs/sq.in., with the 6" section tyres. The normal pressure for this size of car should be 30 lbs./sq.in. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||