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).
Modification of cross steering levers for the 1.B.50 model.
| Identifier | ExFiles\Box 112\3\ scan0010 | |
| Date | 23th March 1938 | |
| COPY. To Da.{Bernard Day - Chassis Design} from Da{Bernard Day - Chassis Design}/DB.{Donald Bastow - Suspensions} c. to Rm.{William Robotham - Chief Engineer} c. to BY.{R.W. Bailey - Chief Engineer} c. to Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer} c. to EV.{Ivan Evernden - coachwork} ----------------- Da{Bernard Day - Chassis Design}/DB.{Donald Bastow - Suspensions}4/N.23.3.38. -------------------- Re: Cro ss{S. Smith} Steering Levers for 1.B.50. -------------------------------------- FD.{Frank Dodd - Bodies}134 attached shows how the present cross steering levers of B.111, GB.2773/4, can be bent to clear the 7.00" tyre on the 16.00" diameter rim 5.00" wide at present specified as final equipment for B.50, the out-of-centre point being maintained at 2.17". These levers will obviously allow any smaller size of tyre or narrower rim to be used than that specified. It is proposed by Rm.{William Robotham - Chief Engineer} to fit a set of these levers to 1.B.5, with the correct yoke pieces and to make skid-pan tests on steering relative to tyre sizes. The same applies to 1.B.50. Should it be discovered that a 6.5 section tyre will be adequate for both cars and there is no gain with the 7" section we shall then issue a suitable cross steering lever. The effect of these levers as compared with those shown in GB.2773/4, is to reduce the lock angle of the outside wheel from 32° to 28° for the lock angle of inside wheel of 41°. Levers bent as shown should be fitted to the first B.50 car. They must be made from the forgings GB.2773/4 as indicated. 1.250 1.230 ±10 0.140±10 0.130 Da{Bernard Day - Chassis Design}/DB.{Donald Bastow - Suspensions} | ||