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).
Steering load specifications and spring details for model 7-EX.
| Identifier | ExFiles\Box 67\4\ scan0241 | |
| Date | 13th December 1926 | |
| X84370 Expl: Dept: Messrs. Rolls-Royce Ltd., Derby, England. Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}2/LG13.12.26. X8992 Restaurant Octobon, Le CanadelHenry Royce's French residence, Par-le-Lavandou, Var - France. Mr. Dodd from Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}, We should be interested to hear how the steering of 7-EX behaves in France. We are held up on steerings because at the present moment only 3500 lbs. load has been standardised on the cross steering tube balls, and we think that 1250 lbs. is more reasonable. Springs at present in cross steering tube G.73963 - details of these springs are as follows :- Free length.......... 2.375 Length in position normally....... 2.300 - when the load is 340 lbs. on the ball end (proposed by R.{Sir Henry Royce} as standard) Therefore .075 set u p gives 340 lbs. load. Add .100 washer behind spring load on ball becomes 340 + 450 = 790 lbs. contd :- | ||