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).
From 'Sg' to 'Hs' regarding feedback on a resonant exhaust's noise level.
| Identifier | ExFiles\Box 104\2\ scan0073 | |
| Date | 10th November 1932 | |
| X5230. S/W. To Hs.{Lord Ernest Hives - Chair} from Sg.{Arthur F. Sidgreaves - MD} Re: 18-G-4. Sales Officials have tried this car and consider that the resonant exhaust as fitted is quite satisfactory from the point of view of noise. Sg.{Arthur F. Sidgreaves - MD} Sg{Arthur F. Sidgreaves - MD}6/D10.11.32 RECEIVED NOV 11 1932 | ||