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).
Testing of plain versus louvred bonnets on various car models to address overheating, and related scheduling.
| Identifier | ExFiles\Box 57\1\ Scan156 | |
| Date | 15th June 1925 | |
| To Wor.{Arthur Wormald - General Works Manager} from Hs.{Lord Ernest Hives - Chair} X5770 Hs{Lord Ernest Hives - Chair}6/LG15.6.25. OVERHEATING. Y766 With reference to the attached ref. BJll/H12.6.25. 44-PK car (EAC. 'V' series) was sent to London this weekend with plain and louvred bonnets. We have the bonnets ready for the 40/50 Silver Ghost and the 20 HP. The 'Silver Ghost' with louvred bonnets can go to London when they wish. In the case of the 20 HP. This car is urgently required in connection with gearbox and 4-wheel brake experiments. If it is taken away to test louvred bonnets, these jobs will be held up. Hs.{Lord Ernest Hives - Chair} | ||