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).
Report comparing vehicle performance and overheating issues in hilly terrain, with suggestions for future instrumentation.
| Identifier | WestWitteringFiles\I\June1922\ Scan110 | |
| Date | 9th June 1922 guessed | |
| S 38 R rollers. The running around here is quite different to Brittany and it will not be possible to do anywhere near the mileage per day we did there, owing to the very hilly and tortuous roads. The road surfaces so far as we have seen are fairly good. It would be interesting and instructive to have another car here to compare with this one especially as regards boiling. I do not think that 5 GII would boil so easily, and my impression is that this car (69II) did not run quite so hot with the previous cylinder head. Is it not possible for the casting to vary in some respect and allow of a very hot spot to generate in some heads and so cause steam pockets in spite of the fact that the inlet water to the cylinder may not be near to boiling point. If the next car to come here it would be interesting to fit a Cambridge thermometer on the bottom water pipe as well as the top. Also it would be useful to fit on the gradient indicator as the inclines are very deceptive when surrounded by mountains. I have this | ||