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 two similar 58mm Marston Mark V radiator matrices for a Bentley.
| Identifier | ExFiles\Box 155\1\ scan0169 | |
| Date | 24th October 1934 | |
| SHEET (2) BENTLEY RADIATORS COMPARISON OF TWO SIMILAR 58 MM MARSTON MARK V RADIATOR MATRICES AIR TEMP TO BOIL °C CAR SPEED 30 MPH FULL THROTTLE 45 MPH FULL THROTTLE 60 MPH CRUISING 84 MPH FULL THROTTLE 58 MM MATRIX TESTED PREVIOUSLY BY US - ① 58 MM MATRIX TESTED PREVIOUSLY ON 4.B.V IN FRANCE ② FIGURE OBTAINED WITH MATRIX ① AT 40 MPH FULL THROTTLE IN 3RD GEAR FIGURE OBTAINED WITH MATRIX ② AT 40 MPH FULL THROTTLE IN 3RD GEAR E.B.Steadman 24/10/34. | ||