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).
Page discussing vehicle overheating issues, particularly in Australia, and comparing braking systems.
| Identifier | WestWitteringFiles\L\2April1924-June1924\ Scan133 | |
| Date | 28th April 1925 | |
| R.R. 493a (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. -2- Expl. No. REF: HS{Lord Ernest Hives - Chair}5/LG28.4.25. corners will be taken at the same speed, on a car with rear brakes only, the power will be shut off at a greater distance from the corners, therefore we should expect 4-wheel brake cars to heat the water to a greater extent. (4) This matter was discussed with R.{Sir Henry Royce} at WW. See R1/M29.8.24. (5) The only reason we can give why 4-wheel brake cars should be worse than the old 40/50 is expressed in our memo. Hs{Lord Ernest Hives - Chair}6/LG27.4.25. It is interesting to note Ford in Australia reports that dismantling the butterfly valve did not make any improvement. (6) Investigation on over-heating is practically continuous in the Experimental Dept. Our experience has taught us and the Experimental files show, that every year, regularly, we get similar complaints and every year we are told that we are worse than we were before. (8) It would appear that as the temperature in Australia in summer time is equal to Southern Europe, the modifications which are made on standard cars to suit these climates, should apply to Australia. (9) In the Expl: report Hs{Lord Ernest Hives - Chair}4/LG31.3.25 we showed what improvements could be expected in the EAC. as regards overheating. In actual practice the improvement should be more than this because our tests show the difference in heat under full power conditions, but owing to the increased power of the EAC. it is reasonable to assume the full power would be used less than on the 40/50 HP. contd :- | ||