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).
Standardisation of the cross steering tube and the two available spring options for different ball end loadings.
| Identifier | ExFiles\Box 17\3\ Scan385 | |
| Date | 14th June 1929 | |
| x7430 To BY.{R.W. Bailey - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}1/LG14.6.29. c. to Mx.{John H Maddocks - Chief Proving Officer} Hm.{Capt. W. Hallam - Head Repairs} CROSS STEERING TUBE. x7425 The cross steering tube standardised is N.sch.2797. There are two springs available to give different ball end loadings : G.77487 giving 1280 lbs. G.77463 giving 1050 lbs. Either of these springs can be used to give the desired damping effect on the steering. We anticipate that when cars come on test the 1050 lbs. load will be sufficient, but that after the cars have been in service some little time the steering may be improved by changing to the heavier load. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||