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).
The allocation of various road springs for the Experimental Department.
| Identifier | ExFiles\Box 27\4\ Scan242 | |
| Date | 7th March 1931 | |
| To O.O. From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} x3035 Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}1/KT.7.3.31. ROAD SPRINGS. x4439, Will you please allot to the Expl. Dept. one pair of the American Type low rating front springs (Free Camber 4.5") from the batch arriving tomorrow. 1150 lbs will be satisfactory. We also require the following special 25 HP. rear springs. Springs to the same thickness of top leaf specification as those supplied to our order Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}2/WJ.13.12.30. Rear Springs Initial Camber 5.9" Loaded Camber .5" Neg. Loaded lbs. 1050. } Three Pairs. Front Springs Initial Camber 4.5" Pos. Loaded Camber .5" Pos. Loaded Lbs. 700 } One Pair. As supplied to Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}2/KT.23.1.31. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||