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 heat dissipation performance of Marston Mk V 52mm and 65mm radiator cores against air speed.
| Identifier | ExFiles\Box 149a\2\ scan0273 | |
| Date | 20th August 1935 guessed | |
| HEAT DISSIPATED / MIN / °C-DIFF BETWEEN AIR & WATER INLET TEMPS . B.Th.U's. Top Axis Values: 10, 20, 30, 40, 50, 60 Left Axis Label: AIR SPEED THRO' CORE — FT/SEC Left Axis Values: 10, 20, 30, 40, 50 Right Text Box: VARIATION OF COOLING WITH AIR SPEED THRO' CORE (ASSUMING FREE AREA = FRONTAL AREA OF MATRIX) Upper Curve Equation: H = K . V^0.795 Upper Curve Label: MARSTON MK V 65 M/M Lower Curve Equation: H = K . V^0.79 Lower Curve Label: MARSTON MK V 52 M/M SHEET 6. | ||