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 the performance of different cooling fans on a Wraith 80 chassis, conducted at Brooklands.
| Identifier | ExFiles\Box 109\4\ scan0116 | |
| Date | 28th June 1939 | |
| BROOKLANDS TESTS FIG. I. COMPARISON OF FANS ON CHASSIS 30-G-VII (WRAITH 80) Nº 2 MATRIX - 24·250" X 19·050" X 84 M/M; SHUTTERS FULL OPEN ALLOWANCE 2°C. MADE FOR DECREASED PUMP FLOW AT HIGH TEMPERATURES CRITICAL AIR TEMPERATURE (°C) - M.{Mr Moon / Mr Moore} P. H - STANDARD WRAITH FAN SHORT-BLADED WRAITH FAN WITH INCREASED BLADE SET BUICK FAN NO FAN, | ||