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).
Suggestion to reduce under-bonnet temperature on the Phantom III by using the flywheel as an extraction fan.
| Identifier | ExFiles\Box 92\6\ scan0290 | |
| Date | 31th May 1937 | |
| To Rm.{William Robotham - Chief Engineer} Kingsbury, May 31st, 1937. 305 Phantom III - Under bonnet temperature. May I make a suggestion to reduce under bonnet temperatures. If it is possible to cut away to the minimum the flywheel and casing we should obtain a fan for drawing out the hot air from under the bonnet. The flywheel being the fan. In my opinion this would do more good than trying to give more air space under the dash and floor boards. At the same time it could not but help in clutch heat. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} | ||