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).
Specifying the standard poundages for 'SS' road springs and a special type for light cars.
| Identifier | ExFiles\Box 16\7\ Scan143 | |
| Date | 21th January 1929 | |
| To BY.{R.W. Bailey - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} c. to DA.{Bernard Day - Chassis Design} X7410 Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}4/LG21.1.29. 'SS{S. Smith}' ROAD SPRINGS. We consider that the following spring poundages will cover 90% of the cars turned out. Front 950 lbs. 1000 lbs. 1050 lbs. Rear 1100 lbs. 1200 lbs. 1300 lbs. For very light cars intended for speed work, we hope to get rear springs of a type similar in camber and rating to those used on the Continental Phantom. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||