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 modify airflow by fitting a piece of plywood with a hole to the inside of the radiator.
| Identifier | ExFiles\Box 78\1\ scan0261 | |
| Date | 13th March 1919 | |
| -2- Extract from R1/G13.3.19. especially that part not controlled by the fan. For this reason I suggest that we fit on the inside of the radiator, next to the fan, a complete piece of ply the full sixe of the radaitor with a round hole in the centre the size of the fan. I believe this part can always be on, in addition to this, we can stop off a third of the height on the outside, which can be varied according to the weather, the inside remaining on unless the car is used in exceptionally hot countries, such as Spain and India, or the tropical temperatures or the Central United States in the summer. R.{Sir Henry Royce} | ||