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).
On the turning circle diameter with a reduced out-of-centre point for the B.V. model.
| Identifier | ExFiles\Box 100\2\ scan0105 | |
| Date | 14th April 1939 | |
| 456 [crossed out]Da.{Bernard Day - Chassis Design} from Da{Bernard Day - Chassis Design}/DB.{Donald Bastow - Suspensions}[/crossed out] [crossed out]c. BY.{R.W. Bailey - Chief Engineer} Rm{William Robotham - Chief Engineer}/APM. Da{Bernard Day - Chassis Design}/JD.{J. Draper - Frames} Da{Bernard Day - Chassis Design}/Ev.{Ivan Evernden - coachwork}[/crossed out] DA{Bernard Day - Chassis Design}/DB.{Donald Bastow - Suspensions}11/G.14.4.39. TURNING CIRCLE DIAMETER WITH REDUCED OUT OF CENTRE POINT. B.V. PD.419 attached to Da{Bernard Day - Chassis Design}'s copy, places on record the effect on the turning circle of the reduction of out-of-centre point on B.V. It will be seen that the turning circle diameter becomes 3" worse than for the present out-of-centre with the same tyre clearance - see PD.396. The actual turning circle becomes 41'6". It will be seen that the track is reduced by the reduction in out-of-centre point from 56.260" to 55.540". The wheel centre is, however, only 0.12" further in than the present B.V. and the top of the wheel a corresponding amount further out, and so it would appear that no alteration need be made to existing wings. The yoke piece done for this scheme and issued to Da.{Bernard Day - Chassis Design} by Da{Bernard Day - Chassis Design}/DB.{Donald Bastow - Suspensions}5/N.3.4.39. is the narrow track one of B.V. and the yoke piece required to give the wide track of B.50 and Wraith 80 is not at present being done. File DA{Bernard Day - Chassis Design}/DB.{Donald Bastow - Suspensions} [signature] | ||