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).
Test report on various automotive parts including horns, a starter switch, and road wheels.
| Identifier | ExFiles\Box 91\2\ scan0369 | |
| Date | 18th September 1937 | |
| 22. Rm{William Robotham - Chief Engineer}/IEW.1/ME.18.9.37. Ref. Description of Part. Result of Test. Lucas. W.T.13. Wind tone horns with Not satisfactory. Inferior latest mods. to present standard. Improved type now available for next car. Lucas. W.T.O. Under bonnet wind tone Run for experience only. Not horns. suitable for standardisation. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} Modified Starter switch with Satisfactory. Experimental carbon contacts deleted. scheme only. Design scheme to be produced. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} Special road wheels with wide No trouble experienced. rims (5 inch) To be standardised if satisfactory on examination. | ||