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).
Engine detonations becoming objectionable during a 10,000-mile test on a 20/25 model.
| Identifier | ExFiles\Box 5a\2\ 02-page256 | |
| Date | 27th March 1930 | |
| To Hs.{Lord Ernest Hives - Chair} from Sg.{Arthur F. Sidgreaves - MD} re 10,000 Mile 20/25 I see from the daily reports that attention is drawn to detonations. The report dated the 23rd, total miles run to that date 9754 specially says: "Detonations are now becoming objectionable when accelerating up to full throttle." I should like to have your views in regard to this from the point of view of whether this is abnormal after this distance. Sg.{Arthur F. Sidgreaves - MD} | ||