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).
Blueprint graph of vehicle temperatures during a climb up the Stelvio Pass, Italy.
| Identifier | ExFiles\Box 95\1\ scan0203 | |
| Date | 4th September 1935 guessed | |
| 3 S I SPECTRECodename for Phantom III CLIMB UP THE STELVIO PASS ITALY. (3 PERSONS IN CAR) Left Graph: 29TH AUGUST 1935 CYLINDER REAR WATER TEMP OIL TEMPERATURE RADIATOR INLET TEMPERATURE RADIATOR OUTLET TEMP UNDER BONNET TEMP CARBURETTOR AIR INTAKE TEMP AIR TEMPERATURE Right Graph: 30TH AUGUST 1935 CYLINDER REAR WATER TEMP OIL TEMPERATURE RADIATOR INLET TEMPERATURE RADIATOR OUTLET TEMP UNDER BONNET TEMP CARBURETTER AIR INTAKE TEMP AIR TEMPERATURE Y-AXIS LABELS: 100C, 90C, 80C, 70C, 60C, 50C, 40C, 30C, 20C, 10C X-AXIS LABELS: 1 2 3 4 5 6 7 8 9 10 11 MILES | ||