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).
Record of vehicle tests measuring water loss and temperatures at various speeds and configurations.
| Identifier | ExFiles\Box 29\3\ Scan254 | |
| Date | 18th July 1930 | |
| 18.7.30. Tests for loss of water, temp. 75° to start, maximum speed, time, temperatures. Maximum speed of car complete with 4 people up :- Distance round track 2,546 m.{Mr Moon / Mr Moore} 24. M.P.H. Time :: 73 2/5 secs = 124, 931 Kms. p.h. } Readings obtained 77.67 73 secs = 125, 866 Kms. p.h. } From the Guide. 78.10 73 4/5 secs = 124, 364 Kms. p.h. } 77.25 Top water Temp. Bottom water Temp. Oil Temp. Air Temp. Water Lost. 92 84 95 18.5 92 84 97 19 .437 gall. 92.5 84 98 19 2° Tests at 80 M.P.H. with fan belt choc-a-bloc with bonnet shutters closed, temperatures and loss of water :- Top water Temp. Bottom water Temp. Oil Temp. Air Temp. Water Lost. 82.5 77 82.5 18.5 82.5 77 82 18 .250 gall. 82.5 77 82 18 3° Tests at 70 M.P.H. with fan belt choc-a-bloc with bonnet shutters closed, temperatures and loss of water :- Top water Temp. Bottom water Temp. Oil Temp. Air Temp. Water Lost. 90 83 88 19 90 83 89 19 90 84 90 19 .375 gall. 90 83 90 19 4° Test with front shutters open, 80 M.P.H. Top water Temp. Bottom water Temp. Oil Temp. Air Temp. 82.5 78 78 17.5 82.5 78 78 17.5 82.5 78 78 17.5 | ||