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 from the Brooklands Tests comparing the performance of two radiator matrices, plotting critical air temperature against speed.
| Identifier | ExFiles\Box 109\4\ scan0117 | |
| Date | 28th June 1939 guessed | |
| FIG II. BROOKLANDS TESTS. COMPARISON OF MATRICES ON 30-G-VII. NO 1 MATRIX.- 22.750" X 19.050" X 84 M/M.{Mr Moon / Mr Moore} NO 2 MATRIX.- 24.250" X 19.050" X 84 M/M.{Mr Moon / Mr Moore} - EXTRA 1.500" ON BOTTOM OF BLOCK. SHUTTERS FULL OPEN FOR ALL TESTS. CRITICAL AIR TEMPERATURE °C M.P.H. NO 2 MATRIX - SHORT BLADED FAN NO 2 MATRIX - NO FAN NO 1 MATRIX - SHORT BLADED FAN NO 1 MATRIX - NO FAN | ||