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).
Table of test figures showing engine and fluid temperatures for various vehicle setups while running in dense London traffic.
| Identifier | ExFiles\Box 94\3\ scan0224 | |
| Date | 24th June 1937 guessed | |
| (Sheet 2) TEST FIGURES OBTAINED WHEN RUNNING IN LONDON TRAFFIC (NOTE TESTS WHERE CARRIED OUT BY RUNNING FOR 1 HOUR IN THE MOST DENSE TRAFFIC WHICH COULD BE FOUND) | CONDITIONS OF TESTS | AIR TEMP DURING TESTS | MAX TOP WATER TEMP REACHED | MAX BOTTOM WATER TEMP | MAX. AIR TEMP. BEHIND FAN | MAX. AIR TEMP. AT PETROL PUMPS | MAX PETROL PUMP FEED TEMP. | CRITICAL AIR TEMP FROM IDLING TESTS | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | AS STD B.S.C. | 18 | 97 | 92.5 | 85 | 67 | 53 | 9.5 | | STD MATRIX BSO 5 BLADE FAN 1.1/1 RATIO | 21 | 81 | 73.5 | 70 | 59 | 46 | 30 | | MATRIX WITH AIR SLOTS BSO 5 BLADE FAN 1.0/1 RATIO | 26 | 88 | 81 | 71 | 60 | 51 | 31.5 | | HARRISON MATRIX BSO 5 BLADE FAN 1.0/1 RATIO | 29 | 86.5 | 77.5 | 73 | 66 | 57 | 27.0 | NOTE B.S.C. - INDICATES BONNET SHUTTERS CLOSED B.S.O. - INDICATES BONNET SHUTTERS OPEN WATER LOSS DOES NOT OCCUR UNTIL TOP WATER TEMP. REACHES 105°c ( DUE TO STEAM VALVE). | ||