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 tested at Brooklands.
| Identifier | ExFiles\Box 87\1\ scan0088 | |
| Date | 7th September 1934 | |
| SHEET 1 BENTLEY RADIATORS COMPARISON OF RADIATOR MATRICES (BENTLEY) (TESTS CARRIED OUT AT BROOKLANDS - SEPT 4 & 5 1934) AIR TEMP TO BOIL - °C NOTE:- BARE MATRIX TESTED - NO SHUTTERS OR THERMOSTAT FITTED 70MM MARSTON MARK V MATRIX 58MM MARSTON MARK V MATRIX STD 84MM MARSTON MARK II MATRIX 70MM MARSTON MARK III MATRIX 30 M.P.H. FULL THROTTLE 45 M.P.H. FULL THROTTLE 60 CRUISING 82 M.P.H. FULL THROTTLE C.S. STEADMAN 7-9-34 | ||