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).
Performance graph for the New Mark V Radiator, plotting HP dissipated and water pressure against water flow.
| Identifier | ExFiles\Box 149a\2\ scan0393 | |
| Date | 24th January 1936 | |
| NEW MARK V RADIATOR FRONTAL AREA = 3.24 □' No OF WATER PASSAGES = 54 DEPTH OF BLOCK = 56MM (2.2") CONSTANT AIR FLOW 4900 CU FT/MIN. AIR INLET TEMP 60°F WATER MEAN TEMP 160°F L.616B.2. WATER PRESSURE DROP ACROSS RAD.R LBS/D'' (INCLUDING HEADERS, INLET AND OUTLET PIPES) H.P. DISSIPATED WATER PRESSURE WATER FLOW GALLS./MIN. H.P. DISSIPATED/100°F TEMP. DIFF. (AIR INLET TO WATER MEAN) Ltd 24/1/36 | ||