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).
Graph comparing the performance of different Bentley radiator matrices, with and without fans, during a hill climb test in France.
| Identifier | ExFiles\Box 87\1\ scan0092 | |
| Date | 11th August 1934 guessed | |
| FRANCE SHEET 5 BENTLEY RADIATORS COMPARISON OF MATRICES WITH AND WITHOUT FANS ON PUY DE DOME - HILL IN FRANCE WITH 400 METRES RISE IN 4300 METRES LENGTH AIR TEMP. TO BOIL °C 40 30 20 FAN V FAN II HARRISON VEE (MARKED V) MATRIX WITH STD. BENTLEY FAN MARSTON MARK II MATRIX WITH STD. FAN MARK V MATRIX WITH NO FAN (ONLY ONE READING) 15 M.P.H. CRUISING 38 M.P.H. FULL THROTTLE | ||