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 70mm and 58mm deep Bentley radiator matrices (Marston Mark V) at different car speeds.
| Identifier | ExFiles\Box 87\1\ scan0114 | |
| Date | 24th October 1934 | |
| SHEET (1) BENTLEY RADIATORS COMPARISON OF BENTLEY RADIATOR MATRICES (MARSTON MARK V) OF VARYING DEPTHS (70 MM & 58 MM) AIR TEMP TO BOIL °C CAR SPEED 30 MPH FULL THROTTLE 45 MPH FULL THROTTLE 60 MPH CRUISING 84 MPH FULL THROTTLE 70 MM MARSTON MARK V MATRIX 58 MM MARSTON MARK V MATRIX C S Steadman 24/10/34 | ||