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 of engine water, oil, and air temperatures under various driving and engine configuration tests.
| Identifier | WestWitteringFiles\U\May1930-July1930\ Scan163 | |
| Date | 18th July 1930 guessed | |
| -2- 5° Test with front bonnet shutters open, 70 M.P.H. Top water Bottom water Oil Air Temp. Temp. Temp. Temp. 87.5 80 90 19. 85 76 90 18.5 } Note result 80 71 90 18.5 } of rain storm. 79.5 72.5 88 18.5 82.5 75.5 89 18. 85 78.5 89 18. 87 80 90 18. 87.5 80.5 90 18. 87.5 80 90 18. 6° Test with front and rear bonnet shutters open, 60 M.P.H. Top water Bottom water Oil Air Temp. Temp. Temp. Temp. 81 75 78 17.75 81 75 79 18 80.75 75 80 17.75 7° Test with front and rear bonnet shutters open, 70 M.P.H. Top water Bottom water Oil Air Temp. Temp. Temp. Temp. 87.5 80 87.5 18.25 87.5 80 89 18.5 87 80 90 18.5 8° Ignition retarded 8 notches, 70 M.P.H. temp. test. Top water Bottom water Oil Air Temp. Temp. Temp. Temp. 86.5 82.5 91.5 18.5 90 82.5 92 18.75 90 83 92 18.75 | ||