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).
Effect of increased steering ball joint-tyre clearance on the turning circle diameter of a Bentley vehicle.
| Identifier | ExFiles\Box 158\2\ scan0005 | |
| Date | 22th March 1939 | |
| 1339 To Da.{Bernard Day - Chassis Design}. from Da{Bernard Day - Chassis Design}/DB.{Donald Bastow - Suspensions} c. Rm.{William Robotham - Chief Engineer} By.{R.W. Bailey - Chief Engineer} c. Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer} Ev.{Ivan Evernden - coachwork} Da{Bernard Day - Chassis Design}/DB.{Donald Bastow - Suspensions}7/N.22.3.39. Effect of Increased Steering Ball Joint-Tyre Clearance on Turning Circle Diameter, B.V. PD.396, attached to Da{Bernard Day - Chassis Design}'s copy, shows the effect on the turning circle diameter of the 0.200" increase of clearance between tyre and steering ball joint given in the lever of PD.395. The cross steering geometry layouts of the two cases are given, and from them the turning circles are calculated, the assumption made being that the centre of the turning circle lies on the centre line of the rear axle, produced, midway between the points of intersection of the two front wheel axes produced. The increase in turning circle diameter for the 0.200" increase in clearance is approximately 4". The best turning circle of the present Bentley II. (L.H. lock) is 39' 7" as against the 41' 3" of the B.V. with the latest levers. Da{Bernard Day - Chassis Design}/DB.{Donald Bastow - Suspensions} B | ||