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).
Confirming that louvred bonnets are not standard and only for special cases like hot climates or mountain climbing.
| Identifier | ExFiles\Box 66\3\ scan0115 | |
| Date | 11th December 1925 | |
| To R.{Sir Henry Royce} from BJ. Copy to...Hs.{Lord Ernest Hives - Chair} BJ21/H11.12.25. X8260 LOUVRED BONNETS. With reference to R3/M10.12.25 (Headed 'Phantom Chassis Experimental Work'), these will only be used in very special cases for hot climates or places like Switzerland, where there is continuous mountain climbing; there is no intention of making them standard on all our chassis. B.J. | ||