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). | ||
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).