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).
Test report detailing car temperature readings at Brooklands under various conditions.
| Identifier | WestWitteringFiles\Q\2-July1927-September1927\ 106 | |
| Date | 13th September 1927 guessed | |
| 10-EX - BROOKLANDS TEMPERATURE TESTS. TABLE DATA: Condition of car: Louvred bonnet. - CUTOUT OPEN: Oil temp. 80°C, Water temp. 70°C, Seats Front 32°C, Seats Rear 29°C - CUTOUT CLOSED: Oil temp. 88°C, Water temp. 74°C, Seats Front 33°C, Seats rear 31°C Condition of car: Shuttered bonnet. - CUTOUT OPEN: Oil temp. 87°C, Water temp. 75°C - CUTOUT CLOSED: Oil temp. 90°C, Water temp. 79°C, Seats Front 35°C, Seats rear * Condition of car: Plain bonnet. Tail removed. - CUTOUT OPEN: Oil temp. 80°C, Water temp. 73°C, Seats Front 32°C, Seats Rear 28°C - CUTOUT CLOSED: Oil temp. 100°C, Water temp. 95°C, Seats Front 40°C Condition of car: Undershield removed. - CUTOUT OPEN: Oil temp. 70°C, Water temp. 72.5°C, Seats Front 30°C, Seats Rear 27°C - CUTOUT CLOSED: Oil temp. 75°C, Water temp. 72.5°C, Seats Front 32°C, Seats rear 29°C Condition of car: 46-PK bonnet shutters closed. - CUTOUT CLOSED: Water temp. 100°C boiling Condition of car: Ditto - shutters <strike>closed</strike> OPEN. - CUTOUT CLOSED: Water temp. 88°C, <strike>78°</strike>C, 90°C NOTES: All temperatures under running conditions and reduced to the mean atms. temperature in the shade for the tests of 20°C. Condition of car for test : Complete undershield and tail, 17 tooth axle, 5 to 1 comp: ratio, turbulent head, aluminium engine. No.1 modified camshaft, heat shield for silencer. The temp. of the front seats was taken in the centre of the car immediately under the instrument board, that of the rear seats just above the floor boards in line with the front of the rear seats in the centre of the car. | ||