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 and specifications for a New Mark V Radiator.
| Identifier | ExFiles\Box 149a\2\ scan0392 | |
| Date | 1st June 1941 | |
| NEW MARK V RADIATOR FRONTAL AREA = 3.24 sq ft FRONTAL ASPECT = 23 7/8" HIGH x 19 5/8" WIDE = 3.26 sq ft COOLING SURFACE = Nº OF WATER PASSAGES = 54 DEPTH OF BLOCK = 56 MM. (2.2") CONSTANT WATER FLOWS (A) 34.5 GALLS/MIN. (B) 20.0 GALLS/MIN. AIR INLET 60°F WATER MEAN 160°F L 616 B1.100 Graph Labels: STATIC DIFFL IN AIR PRESS. INS. WATER. MATRIX TRUNKED FORE AND AFT. AIR FACE VELOCITY MILES PER HR AIR FLOW CU.FT/MIN. CALCULATED AT 60°F AND 29.9" Hg. H.P. DISSIPATED / 100°F TEMP. DIFF. (AIR INLET TO WATER MEAN) H.P. DISSIPATED AIR PRESSURE AT WATER TEMP OF 160°F (A) (B) RR/6141 | ||