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).
Packard type front suspension on B.III & B.50 models, including torque calculations.
| Identifier | ExFiles\Box 100\1\ scan0119 | |
| Date | 1st April 1938 | |
| To EY. from Da{Bernard Day - Chassis Design}/Ev.{Ivan Evernden - coachwork} 446. c. to Da.{Bernard Day - Chassis Design} c. to Rm.{William Robotham - Chief Engineer} c. to Rm{William Robotham - Chief Engineer}/Les.{Ivan A. Leslie} c. to Da{Bernard Day - Chassis Design}/JD.{J. Draper - Frames} Da{Bernard Day - Chassis Design}/Ev.{Ivan Evernden - coachwork}1/N.1.4.38. B.III & B.50 - Packard type Front Suspension. As we have no complete arrangement of the Packard type Front Suspension on B.III and B.50, and because such an arrangement is difficult to draw, due to the peculiar layout of the suspension, we have made PD.139 a print of which is sent herewith showing the perspective view of the whole front suspension. Also in order that the geometry of the suspension may be comprehended, we have made a scaleplan view. From this it will be seen that there is a torque on the yoke piece when the car is standing, of the load on the wheel times approximately 2 1/2" which is in the neighbourhood of 2300 in. lbs. of torque. To Da{Bernard Day - Chassis Design}'s copy we attach the original for filing purposes. Ev.{Ivan Evernden - coachwork} | ||