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 of cooling curves comparing performance with shutters open versus fan off at 30 M.P.H.
| Identifier | ExFiles\Box 24\4\ Scan288 | |
| Date | 26th November 1924 guessed | |
| TYPICAL COOLING CURVES SHOWING BOTH WAY READINGS COMPARISON OF SHUTTERS OPEN AND FAN OFF 30 M.P.H Y-AXIS: RADIATOR TEMP F° - ATS TEMP VALUES: 140, 130, 120, 110, 100, 90, 80, 70, 60, 50, 40 X-AXIS: DISTANCE. MILES VALUES: 1, 2, 3, 4 CURVE LABELS: No FAN SHUTTERS OPEN | ||