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 vehicle temperature and draught conditions under different ventilation configurations.
| Identifier | ExFiles\Box 75\4\ scan0125 | |
| Date | 22th February 1928 guessed | |
| 2. Dashboard not filled in, engine side guards louvred, dashboard ventilators closed, all side windows open. Floorboards temperature | Body temperature | Water temperature | Time under full power | Air temperature 52 | 32 | 70 | 10 mins. | 18 65 | 34 | 94 | | 18 Under above conditions there was a smell from the brakes and a bad draught. 3. Dashboard not filled in, engine side guards louvred, dashboard ventilators closed, front two side windows open. Floorboards temperature | Body temperature | Water temperature | Time under full power | Air temperature 51 | 36 | 70 | 10 mins. | 17 62 | 41 | 90 | | 17 Smell of burnt oil, no draught. 4. Dashboard not filled in, engine side guards louvred, dashboard ventilators closed, both front windows open only. Floorboards temperature | Body temperature | Water temperature | Time under full power | Air temperature 49 | 18 | 70 | 10 mins. | 15 60 | 15 | 91 | | 15 No smell, bad draught. H & W 423Y (100 m.{Mr Moon / Mr Moore}) X 500 5/38 (1) G503 | ||