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).
Copy of a telegram discussing suspension design, spring positioning, rubber bushings, and damper types.
| Identifier | ExFiles\Box 174\2\ img044 | |
| Date | 23th March 1937 | |
| To Sg.{Arthur F. Sidgreaves - MD} from Hs.{Lord Ernest Hives - Chair} c. to Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} c. to S/Ld. c. to Rm{William Robotham - Chief Engineer}/Cry (a) Hs.{Lord Ernest Hives - Chair}5/Kh.23.3.37 The following is copy of a telegram received from E.{Mr Elliott - Chief Engineer} and Rm.{William Robotham - Chief Engineer} :- "Hives would have preferred springs further out to limit bending moment stress in coils and facilitate use of rubber bushings for wishbones. Olley has evidence that bending moment affects spring life but it is doubtful whether this would preclude use of spring in proposed position. Hundred hours bump test considered imperative to prove this point. If considered inexpedient to alter spring position recommend you proceed with your scheme as drawn. Cadillac tests indicate that using rubber bushings on your Buick scheme not impossible. Details and sample latest bushings in post. Recommend schemes to incorporate these experimentally should be produced. No damper free from noise has been developed but flit gun type promising double piston type as on Vauxhall front suspension considered worth examination. Little information available on frame damping." | ||