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).
Alterations to the front suspension of a Bentley 111 to achieve zero caster angle.
| Identifier | ExFiles\Box 100\1\ scan0107 | |
| Date | 16th March 1938 | |
| [REDACTED] c. Rm.{William Robotham - Chief Engineer} c. De/[REDACTED] c. De/[REDACTED] 446. DA.{Bernard Day - Chassis Design}16/G.16.3.38. F.J. HARDY BENTLEY 111. FRONT SUSPENSION. Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer} has told us that Rm.{William Robotham - Chief Engineer} would like zero caster angle on this car. This can be obtained by alteration of the pivot pin boss on the yoke piece. The alterations required will be taking the R.H. yoke as an example, FB.3596, in the left hand view the centre line of thehole through the yoke piece boss will be inclined at 1°20' to the vertical or present centre line, the inclination being such that the lower end of the boss is further to the left in that view, and the dimension to that centre line at the bottom face of the boss becomes 1.567". In the view to the right of this, the centre view, the 3°47' of FB.3596 becomes 3°14' and the 1.750" ± 5 dimension becomes 1.739" ± 5 . DA.{Bernard Day - Chassis Design} [Handwritten annotation 'A#' with a diagonal line striking through the document] | ||