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).
Hill climb test out of Vizille, detailing performance, weather conditions, and gradient calculations.
| Identifier | WestWitteringFiles\I\June1922\ Scan28 | |
| Date | 15th June 1922 | |
| ORIGINAL 48 Hotel Lesdiguieres Grenoble To Hs{Lord Ernest Hives - Chair} from H UGII June 15. 1922 Y4076 Yesterday we managed to climb the hill out of Vizille the whole way without boiling but the conditions were very favourable the weather being very cold and a dense cloud was on the hill causing a wet clammy fog. Also visibility was bad and the car had to be taken up slowly. I have looked into the gradient of this hill again and find that my first figures were much too modest. The gradient for the first two miles averages 1 in 12.8 and for the second two miles 1 in 9.7 making an average for the whole hill of nearly 1 in 11 for the 4 miles. It is a hill which just suits the car on second gear and if the boiling can be avoided it would be a joy to climb it full throttle. Yesterday was a bad day here the clouds being down like a blanket and pouring rain all day. You might complain to Mr Spinney that the green dye of | ||