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 detailing the results of cooling tests carried out at Brooklands on an experimental car.
| Identifier | ExFiles\Box 155\1\ scan0303 | |
| Date | 24th August 1937 guessed | |
| (Sheet 4) RESULTS OF COOLING TESTS CARRIED OUT AT BROOKLANDS (MAX SPEEDS) ON 37 Ex. CAR. CONDITIONS OF TESTS | AIR TEMP. DURING TESTS °C | CRITICAL AIR TEMP. °C. | LAP SPEED. STD. MATRIX. B.S.C. | 18.0 | 35.5 | 84.0 STD. FAN. STD. MATRIX. B.S.O. | 18.0 | 39.5 | 85.5 STD. FAN. STD. MATRIX. B.S.O. | 18.0 | 39.5 | 85.0 STD. FAN - FAN RING FITTED STD. MATRIX. B.S.O. | 18.0 | 39.5 | 84.6 5 BLADE FAN .9/1 RATIO STD. MATRIX. LOUVERED BONNET. | 18.0 | 39.0 | 84.4 5 BLADE FAN .9/1 RATIO STD. MATRIX. B.S.O. | 21.5 | 41.5 | — 5 BLADE FAN. 1.0/1 RATIO STD. MATRIX. LOUVERED BONNET. | 22.0 | 42.5 | — 5 BLADE FAN. 1.1/1 RATIO STD. MATRIX. B.S.O. | 22.0 | 44.0 | 84.6 5 BLADE FAN 1.2/1 RATIO STD. MATRIX. B.S.O. | 18.0 | 34.0 | 86.0 NO FAN LIGHTENED MATRIX. B.S.O. | 22.0 | 27.0 | 85.5 STD. FAN .9/1 RATIO LIGHTENED MATRIX. B.S.O. | 21.0 | 29.0 | 84.3 5 BLADE FAN 1.0/1 RATIO HARRISON MATRIX. B.S.O. | 23.5 | 40.0 | 83.8 5 BLADE FAN 1.0/1 RATIO GALLAY MATRIX (60 MM) B.S.O. | 23.5 | 26.5 | 84.0 5 BLADE FAN 1.0/1 RATIO. MATRIX WITH AIR SLOTS. B.S.O. | 21.0 | 28.5 | 83.4 5 BLADE FAN 1.0/1 RATIO. NOTE:- (A) CRITICAL AIR TEMP IS MIN ATMOS TEMP. NECESSARY FOR WATER TO REACH 100°C IF DRIVEN AT MAX SPEED LONG ENOUGH. (B) MIN ATMOS TEMP. FOR WATER LOSS IS 5° ABOVE CRITICAL AIR TEMP. (C) B.S.C. - BONNET SHUTTERS CLOSED - B.S.O - BONNET SHUTTERS OPEN | ||