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).
Standardization of a side steering tube improvement and alternative proposals.
| Identifier | ExFiles\Box 106\3\ scan0127 | |
| Date | 17th December 1926 | |
| To Hs{Lord Ernest Hives - Chair}, from DA.{Bernard Day - Chassis Design} BY c. to BJ. DA{Bernard Day - Chassis Design}2/M17.12.26. Y5430 20 HP. STEERING. X.5430 X.5450 Referring to the side steering tube improvement proposed to be standardised - X.5450 - we do not quite understand the purpose of this alteration and suggest that it would be better, since a complete changeover of side steering tubes is intended, to make sure that the improvement indicated on N.sch. 2308 could be embodied as soon as the necessary testing had been completed. In order to do this all that is necessary is to revise F.54584 on the lines of N.sch.2328 attached. This would ensure that when the changeover of the s.s. tubes was made complaints as to excessive joggle could always be dealt with by fitting the parts of N.sch.2308. As it is, if F.54584 were standardised, and joggle complaints were experienced, it would be necessary to make a further changeover in order to get flexible springs. Though R.{Sir Henry Royce} has signed the std. sheet he did so on the understanding that if everything was not quite as we had understood him, we should stop the standardisation. We are sure that he wants the joint to N.sch.2308 as soon as possible, and we therefore suggest that a further proposal which you might consider is fitting immediately the characteristics of F.54584 as shewn on N.sch.2329 also herewith, to enable you to get cars on the road. Then, on completion of the tests on N.sch.2308 all that would be necessary would be to change the springs. The suitability of this suggestion depends on how far it is permissible to use the new pieces, viz: pads, pad guides, etc. without a 10,000 miles test, and its advantages are that when the complete changeover is made viz: springs as well as tube, a minimum of scrap is actually made. It will be appreciated no doubt, that if either F.54584 or N.sch.2328 are adopted the new pads and pad guides are scrapped with the spring changeover. DA.{Bernard Day - Chassis Design} | ||