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).
Road test, detailing car performance on gradients, brake condition, a gear box rattle, and mileage.
| Identifier | WestWitteringFiles\I\June1922\ Scan111 | |
| Date | 6th September 1922 guessed | |
| 39.R Morning been out on the road to Sisteron for 60 Kilometres and the car ran very well. The gradients on this road (which I believe the one you took with 4GI to Le CanadelHenry Royce's French residencel) are long but not severe and can be done on top gear nearly all the way. The hill out of Vizille on which the car boiled badly is of more severe gradient and is about 4 miles long with a fairly steady gradient of about 1 in 20 but in places may be 1 in 12 or 15. The surface is good and the road is a good class main road with no really bad turns. The brakes are working very well except for the squeak. The gear box rattle which was bad in the car at the beginning is still there but is very much reduced and is only really evident when the car is cold and gradually is reduced as the oil warms up. It is noticeable at between 40 & 50 MPH on retard. The mileage is as follows Miles since leaving Derby and up to June 7th 11,682 on June 9 & 10th 161 Total miles run since leaving Derby 11,843 H | ||