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).
Cooling system tests conducted at Brooklands between the 17th and 20th of June 1930.
| Identifier | ExFiles\Box 64\1\ scan0066 | |
| Date | 25th June 1930 | |
| To R.{Sir Henry Royce} From Hs{Lord Ernest Hives - Chair}/Bm. C. to O.P. C. to Bk.{A. Birkett - Commercial Manager} C. to W. C. to Lr.{Mr Ellor} x7510 Hs{Lord Ernest Hives - Chair}/Bm.1/RAJ.256.30. x788 x7220 x766 x7771 x7250 x7777 x7260 x7510 BROOKLANDS TESTS JUNE 17TH. to 20TH. 1930. We took 19-EX. car to Brooklands with a view to checking over the efficiency of the cooling system at speed. We have had one or two complaints of Phantom ll cooling being inadequate in Italy etc., even with louvred bonnets. The conditions there appear to be somewhat exceptional as the owners were able to drive for a number of miles all out and without easing up, commence a 3,000 ft. climb. However, we ourselves are not altogether satisfied that we have made the best possible use of the Phantom ll system, as our cars in France have not been free from over-heating trouble. Whilst we were on the track, we borrowed 18-EX. as this has been quoted as being a well cooled car, and obtained some figures for it. We also had the American car at the same time. Tests of the Cooling System. - Modifications to Standard. It was at once apparent that the car cannot be run all out on the track with no bonnet ventilation and not overheat if the atmospheric temperature is above 25°C. No car we have made so far would do this and we should not expect it. Therefore, in order to establish a basis of comparison for all conditions, the car was driven at a constant speed | ||