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).
Results from temperature tests conducted under the floorboards on various chassis, including a test on Ashbourne Hill.
| Identifier | ExFiles\Box 75\4\ scan0068 | |
| Date | 10th August 1908 | |
| Temperature test taken under the floor boards with thermometer. X819 Taken by Mr Royce and Mr Johnson on Chassis 754 with bonnet, with and without windows. 3500 No appreciable difference in temperature Taken by Mr Platford on Chassis 541. Holes in dashboard to let in cool air under the floor boards. No appreciable difference in temperature Mr Platford's Test 10/8/08 Surrounding temperature 10.5 Ordinary driving Holes open 119. Ashbourne Hill Surrounding temperature when running 10.5 With holes blocked up. Temperature starting 52 " at top 49. Stood still 10.65 With holes open 52 50. | ||