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).
Table detailing the test results of various vehicle components, including suspension and steering parts.
| Identifier | ExFiles\Box 91\2\ scan0366 | |
| Date | 18th September 1937 | |
| 19. Rm{William Robotham - Chief Engineer}/IVW.1/MH.{M. Huckerby}18.9.37. Ref. | Description of Part. | Result of Test. --- | --- | --- G.83606/7 | Main spring housings for front suspension in aluminium in place of steel. | Detail attention to location of studs required. Experience of further castings necessary before standardising. G.4946-3030 | Large tube front shock dampers to reduced knocks. | Standardisation sheet to be issued. im/Les.{Ivan A. Leslie} | Enclosed re-bound buffers on front suspension. | Standardisation sheet to be issued. im/Les.{Ivan A. Leslie} | Bronze bushes in front suspension to replace needle bearings. | Not satisfactory on account of harshness of ride, but wearing qualities good. .83678. | Vent plugs on front spring boxes deleted to prevent oil pumping. out. | Standardisation sheet to be issued. G.4967/4975. | Adjustable cross steering tubes. | Standardisation sheet to be issued. K.27718/20 | Ball pads in Bz/Pb. Finished with cutter in place of lapping. | Material not satisfactory method of finishing recommended for standard ball pads. | ||