Letter detailing mileage and observations on engine overheating during a road test.
| Identifier | WestWitteringFiles\I\June1922\ Scan16 | |
| Date | 14th June 1922 | |
| Copies Sent G, E.DA {Bernard Day - Chassis Design} , Ry, EP {G. Eric Platford - Chief Quality Engineer} R.cd 19/6/22 ORIGINAL. 1 42 X4086 Hotel Lesdiguieres Grenoble To H's from Ry 69II June 14. 1922 The mileage to date is as follows On June 11th 176 miles " 12th 137 " " 13th 212 " Previous mileage since leaving Derby 11843 " Total to June 13th. 12368 " Yesterday we ran over to Briançon over a pass 6000 feet high. The car ran very well and did not boil but was just on boiling point for some time, but by easing off the load it was kept going without serious loss of water. We could easily have made it boil if we had not handled the car carefully and with a view to avoid boiling. I have an idea that the hot air inside the bonnet cannot get away freely enough and that if a freer passage were made the trouble might be removed or considerably reduced. We have made a test on the hill out of Vizille (which I have already mentioned several times as being a hill which boils the water every time) with and without the | ||
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).