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).
Summary comparing the cooling performance and weights of different radiator matrices.
| Identifier | ExFiles\Box 149a\2\ scan0232 | |
| Date | 8th August 1935 | |
| X1280 Hs{Lord Ernest Hives - Chair}/Std.1/KW. 8.8.35. Summary of Radiator Matrix Comparisons. Cooling. Matrix. Mark V.{VIENNA} Mark VI. Dissipates 9% more heat than Mark V.{VIENNA} American Harrison Vee Dissipates 14½% more heat than Mark VI. Weights. Mark V.{VIENNA} 31.5 lbs. (58 m.m.) Mark VI. 29.3 lbs. (52 m.m.) } Bentley shape American } and size matrix. Harrison Vee 26 lbs. (52 m.m.) } Hs{Lord Ernest Hives - Chair}/Std. | ||