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 results for temperatures with specific dashboard, guard, and ventilator configurations.
| Identifier | ExFiles\Box 75\4\ scan0112 | |
| Date | 1st July 1912 guessed | |
| 8/ 7. Dashboard not filled in, engine side guards louvred, ventilators above floorboards closed, front two side windows open, dashboard ventilators under floorboards taken right out, ie leaving holes 3 3/4 diameter. Temp Body Water Time Air Floorboards. temp. temp. under temp. full power. 42 35 70 10 15 58 40 92 mins. 15 Some smell, no draught. bond | ||