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).
Line graph comparing the performance of two similar 58mm Marston Mark V radiator matrices at various car speeds.
| Identifier | ExFiles\Box 87\1\ scan0115 | |
| Date | 24th October 1934 | |
| SHEET (2) BENTLEY RADIATORS COMPARISON OF TWO SIMILAR 58 MM MARSTON MARK V RADIATOR MATRICES Y-AXIS: AIR TEMP TO BOIL °C X-AXIS: CAR SPEED X-AXIS LABELS: 30 M.P.H FULL THROTTLE 45 M.P.H FULL THROTTLE 60 M.P.H CRUISING 84 M.P.H FULL THROTTLE LINE DATA: 58 MM MATRIX TESTED PREVIOUSLY BY US - ① 58 MM MATRIX TESTED PREVIOUSLY ON 4 B IV IN FRANCE - ② ANNOTATIONS: FIGURE OBTAINED WITH MATRIX ① AT 40 M.P.H FULL THROTTLE IN 3RD GEAR FIGURE OBTAINED WITH MATRIX ② AT 40 M.P.H FULL THROTTLE IN 3RD GEAR C.S. Steadman 24/10/34 | ||