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).
Report outlining potential improvements to vehicle riding qualities, focusing on tyres, springs, and shock dampers.
| Identifier | WestWitteringFiles\T\2July1928-December1928\ Scan042 | |
| Date | 23th July 1928 | |
| HS.{Lord Ernest Hives - Chair} ) FROM R.{Sir Henry Royce} CWB. ) C. to BJ. WCR. BY.{R.W. Bailey - Chief Engineer} RIDING QUALITIES. ORIGINAL R1/M23.7.28. Handwritten: X4565 X235 X5820 X5410 XI360 I hope to receive shortly a report shewing improvements due to:- (1) 6" low pressure tyres on 20HP. (2) Different tyre pressures at slow speed, on the understanding that these can be increased when very high speed is anticipated. We do this ourselves - i.e. from 25 lbs. to 40 lbs. on Phantom, also on 20HP. (3) More flexible road springs, especially on cars with light bodies, noting especially the rating at the running deflection. (4) Difference in internal friction in different makes, and different specimens of any make. (5) Difference in Hartford and RR. hydraulic shock dampers. (6) Benefit of high recoil pressure in hydraulic shock dampers for high speed steadiness and low speed comfort. Cadmium plating cannot have any marked improvement in any way except rusting, as far as I can believe, without further confirmation. R.{Sir Henry Royce} | ||