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).
Effect of a radiator grille on bonnet air temperature.
| Identifier | ExFiles\Box 87\1\ scan0065 | |
| Date | 17th May 1934 | |
| X200 Copy for Files. 17.5.34. Further to our report reference Hs{Lord Ernest Hives - Chair}/Std.2/MA.16.5.34., we give the attached curves of bonnet air temperature with and without radiator grille. As will be seen from these curves, the effect of the radiator grille is to increase the bonnet temperature by approximately 7.5°C at 60 m.p.h. and 10°C. at 80 m.p.h. Hs{Lord Ernest Hives - Chair}/Std. | ||